Document and Entity Information [Abstract] Document Information [Table] Entity Addresses, Address Type [Axis] Address Type [Domain] Business Contact Document Information [Line Items] Document Type Document Registration Statement Document Annual Report Document Period End Date Document Transition Report Document Shell Company Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, Country Contact Personnel Name Local Phone Number Contact Personnel Email Address Contact Personnel Fax Number City Area Code Title of 12(b) Security Trading Symbol Security Exchange Name Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Document Accounting Standard Entity Shell Company Auditor Name Auditor Firm ID Auditor Location Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Consolidated Statements of Financial Position Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed. IFRS Statement [Table] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Statement [line items] Statement [line items] Himax Technologies, Inc. (the Parent Company only) Assets [abstract] Assets Current assets [abstract] Current assets: Cash and cash equivalents. Cash and cash equivalents at end of year Cash and cash equivalents at beginning of year Cash Less: cash and cash equivalents Cash and cash equivalents Cash and cash equivalents Financial assets at amortised cost Time deposit with original maturities more than three months Financial assets at amortized cost Current financial assets at fair value through profit or loss Financial assets at fair value through profit or loss Current Receivables from contracts with customers Accounts receivable, net (including related parties) Current inventories Inventories Inventories Income taxes receivables Income taxes receivable Income taxes receivable Current restricted cash and cash equivalents Restricted deposit Current receivables due from related parties Other receivable from related parties Other current assets Other current assets Current assets Total current assets Non-current financial assets at fair value through profit or loss Non-current Financial assets at fair value through profit or loss Non-current financial assets at fair value through other comprehensive income. Financial assets at fair value through other comprehensive income Investments accounted for using equity method Equity method investments Property, plant and equipment. Ending Balance Opening Balance Property, plant and equipment Property, plant and equipment, net Deferred tax assets Deferred tax assets Deferred tax assets Goodwill Goodwill Other intangible assets. Other intangible assets, net Non-current restricted cash and cash equivalents For customs duties Restricted deposit Amount of refundable deposits noncurrent. Refundable Deposits Noncurrent Refundable deposits Other non-current assets Other non-current assets Non-current assets Total non current assets Assets Total assets Equity and liabilities [abstract] Liabilities and Equity Other Current Liabilities Current liabilities: The amount of current unsecured bank loans received. Current Unsecured Bank Loans Received Short-term unsecured borrowings The amount of current portion of non-current unsecured bank loans received. Current Portion Of Noncurrent Unsecured Bank Loans Received Current portion of long-term unsecured borrowings Current secured bank loans received and current portion of non-current secured bank loans received Short-term secured borrowings Amounts payable, related party transactions Accounts related payable Accounts payable The amount of current Income taxes payable Income taxes payable Income taxes payable Current payables to related parties Other payable to related parties Other payable Current contract liabilities Contract liabilities-current Other current liabilities. Other current liabilities Other current liabilities Current liabilities Total current liabilities Current liabilities Non-current portion of non-current unsecured bank loans received Long-term unsecured borrowings Total Deferred tax liabilities Deferred tax liabilities Deferred tax liabilities Other non-current liabilities Other non-current liabilities Liabilities Total liabilities Total liabilities Consolidated Statements of Changes in Equity Equity The amount represents of ordinary shares Ordinary shares Ordinary shares Additional paid-in capital Additional paid-in capital Treasury shares Treasury shares Accumulated other comprehensive income Ending balance Beginning balance Accumulated other comprehensive income Retained earnings Retained earnings Equity attributable to owners of parent Equity attributable to owners of Himax Technologies, Inc. Equity attributable to owners of Himax Technologies, Inc. Non-controlling interests Noncontrolling interests Equity. Balance Balance Total equity Total equity Equity and liabilities Total liabilities and equity Consolidated Statements of Profit or Loss Revenue [abstract] Revenues: Amount of revenues from sale of third parties. Revenues From Sale OF Third Parties Revenues from third parties, net Revenue from sale of goods, related party transactions Revenues from related parties, net Sales of goods Revenue Revenues Total revenues Segment revenues Cost and expenses abstracts Cost and expenses abstracts [Abstract] Costs and expenses: Cost of sales Cost of revenues Cost of revenues Research and development expense Research and development Research and development General and administrative expense General and administrative Sales and marketing expense Sales and marketing Sales and marketing Amount of total cost expenses Total cost and expenses Costs and expenses Total costs and expenses Operating income Operating income Segment operating income (loss) Non operating income loss abstract Non operating income loss [Abstract] Non operating income (loss): Interest income Interest income Adjustments for fair value losses (gains) Changes in fair value of financial assets at fair value through profit or loss Changes in fair value of financial assets at fair value through profit or loss Changes in fair value of financial assets at fair value through profit or loss The amount for foreign currency exchange losses net. Foreign Currency Exchange Losses Net Foreign currency exchange gains (losses), net Finance costs Finance costs Finance costs Unrecognised share of losses of associates Share of losses of associates The Company's share of losses of associates Other gains (losses) Other gains (losses) Other income Other income Amount of total value of non operating income loss from ancillary business-related activities. Non Operating Income Loss Total non operating income (loss) Profit (loss) before tax Consolidated profits before income taxes Profit before income taxes Tax expense (income) Income tax expense (benefit) Income tax benefit Income tax expense Profit (loss) Profit (loss) for the year Profit for the year Profit for the year Profit (loss), attributable to non-controlling interests Loss (profit) attributable to noncontrolling interests Profit (Loss) for the year Profit (loss), attributable to owners of parent Profit attributable to Himax Technologies, Inc. stockholders Profits attributable to Himax Technologies, Inc. stockholders Basic earnings (loss) per share Basic earnings per ordinary share attributable to Himax Technologies, Inc. stockholders Diluted earnings (loss) per share Diluted earnings per ordinary share attributable to Himax Technologies, Inc. stockholders Basic earning per share ads attributable to Parent Basic earnings per ADS attribute to Himax technologies stockholders Basic earnings per ADS attributable to Himax Technologies, Inc. stockholders Basic earnings per ADS attributable to Himax Technologies, Inc. stockholders diluted earning per share ads attributable to Parent Diluted earnings per ADS attribute to Himax technologies stockholders Diluted earnings per ADS attributable to Himax Technologies, Inc. stockholders Consolidated Statements of Other Comprehensive Income Other comprehensive income [abstract] Other comprehensive income: Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] Items that will not be reclassified to profit or loss: Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans Remeasurements of defined benefit pension plans Reclassification adjustments on change in value of foreign currency basis spreads, before tax Unrealized gain on financial assets at fair value through other comprehensive income Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss Income tax related to items that will not be reclassified subsequently Remeasurements of defined benefit pension plans Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] Items that may be reclassified subsequently to profit or loss: Gains (losses) on change in value of foreign currency basis spreads, before tax Foreign operations - foreign currency translation differences Other comprehensive income Other comprehensive income Other comprehensive income for the year, net of tax Comprehensive income Total comprehensive income for the year Total comprehensive income for the year Comprehensive income, attributable to non-controlling interests Total comprehensive income attributable to noncontrolling interests Comprehensive income, attributable to owners of parent Total comprehensive income attributable to Himax Technologies, Inc. stockholders Components of equity [axis] Components of equity [domain] Ordinary shares [Member] Ordinary shares Additional paid-in capital [Member] Additional paid-in capital Treasury shares [member] Treasury shares Accumulated other Comprehensive income [member] Accumulated other comprehensive income Retained earnings [Member] Retained earnings Equity attributable to owners of parent [member] Equity attributable to owners of parent Total Noncontrolling interests Noncontrolling interests Number of shares outstanding Balance (in shares) Balance (in shares) Number of shares outstanding Contributions by and distributions to owners abstracts Contributions by and distributions to owners [Abstract] Contributions by and distributions to owners Purchase of treasury shares Treasury shares acquired Treasury shares acquired Number of shares that have been repurchased during the period and are being held in treasury. Ifrs Treasury Stock, Shares, Acquired Treasury shares acquired (share) Treasury shares acquired The amount of dividends recognised as distributions to owners of the parent. [Refer: Parent [member]] Dividends Recognised As Distribution To Owners Of Parent Declaration of cash dividends The amount of dividends equivalent recognised as distributions to owners of the parent. Dividends Equivalent Recognised as Distribution to Owners of Parent Dividend Equivalents Dividends recognised as distributions to non-controlling interests Dividend to noncontrolling interest from subsidiary Increase (decrease) through share-based payment transactions, equity Share-based compensation expenses The amount of restricted stock vested. Restricted Stock Vested Value Restricted stock vested Number of restricted stock vested during the current period. Restricted stock vested shares Restricted stock vested (in shares) Aggregated Values contribution distribute to owners Aggregate of contribution by distribution to owners Aggregate of contribution by and distribution to owners Shares represents for aggregated shares contribution distribute to owners Aggregate Of Shares Contribution By Distribution To Owners Aggregate of contribution by and distribution to owners (in shares) n/a Changes In Ownership Interests [Abstract] Changes in ownership interests Increase (decrease) through change in equity of subsidiaries, equity New shares issued by subsidiary From share of changes in equities of associates and subsidiaries Gain (loss) on cessation of consolidation of subsidiaries due to change of investment entity status Dilution gain of equity method investment Increase (decrease) through disposal of subsidiary, equity Purchase of subsidiaries shares from noncontrolling interest The amount of increase in non-controlling interest from acquisition of controlling power from non-controlling interest. Acquired the Controlling Power from Noncontrolling Interest, Equity Acquired the controlling power from noncontrolling interest The amount of decrease in equity by liquidation of financial assets at fair value through other comprehensive income. Liquidation of Financial Assets at Fair Value Through Other Comprehensive Income, Equity Liquidation of financial assets at fair value through other comprehensive income Amount of aggregate changes in ownership interests. Aggregate Amount of Changes in Ownership Interests Aggregate of changes in ownership interests Dividends recognised as distributions to owners per share Declaration of cash dividends per share Consolidated Statements of Cash Flows Cash flows from (used in) operating activities [abstract] Cash flows from operating activities: Adjustments to reconcile profit (loss) [abstract] Adjustments for: Adjustments for depreciation and amortisation expense Depreciation and amortization Adjustments for share-based payments Share-based compensation Share-based compensation expenses Adjustments for gain (loss) on disposals, property, plant and equipment Loss (gains) on disposal and scrap of property, plant and equipment, net Adjustments for losses (gains) on disposal of non-current assets Gains on disposal of land held for sale The amount of loss on re-measurement of the preexisting relationships in a business combination. Loss On Re-measurement Of Business Combination Loss on re-measurement of the pre-existing relationships in a business combination Loss on re-measurement of the pre-existing relationships in a business combination Interest income (expense) Interest income Share of losses of associates Adjustments For Losses From Associates Share of losses of associates Inventory write-down Inventories write downs Adjustments for unrealised foreign exchange losses (gains) Unrealized foreign currency exchange losses (gains) Unrealized foreign currency exchange losses Cash Flows From Operating Activities Before Changes In Operating Capital. Cash Flows From Operating Activities Before Changes In Operating Capital Cash flows from operating activities before changes in operating capital Changes in operating capital. Changes In Operating Capital [Abstract] Changes in: Adjustments for decrease (increase) in trade accounts receivable Accounts receivable (including related parties) Adjustments for decrease (increase) in inventories Inventories Adjustment of increase decrease in other receivable from related parties operating activities. Adjustment Of Increase Decrease In Other Receivable From Related Parties Operating Activities Other receivable from related parties Adjustments For Decrease Increase In Other Current Assets Adjustments Fo rDecrease Increase In Other Current Asset Other current assets Accounts payable to related party Adjustment For Decrease Increase In Accounts Payable Related Parties Accounts payable (including related parties) Other payable to related party Adjustment For Decrease Increase In Other Payable Related Parties Other payable to related parties Adjustments for increase (decrease) in contract liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. Adjustment For Decrease Increase Contract liabilities Contract liabilities Adjustments for increase (decrease) in other operating payables Other current liabilities Other non-current liabilities Adjustment For Decrease Increase In Other Non Current Liabilities Other non-current liabilities Cash flows from (used in) operations Cash generated from operating activities Interest received, classified as operating activities Interest received Interest paid, classified as operating activities Interest paid Income taxes paid (refund), classified as operating activities Income tax paid Cash flows from (used in) operating activities Net cash provided by operating activities Cash flows from (used in) investing activities [abstract] Cash flows from investing activities: Purchase of property, plant and equipment, classified as investing activities Acquisitions of property, plant and equipment Proceeds from sales of property, plant and equipment, classified as investing activities Proceeds from disposal of property, plant and equipment Purchase of intangible assets, classified as investing activities Acquisitions of intangible assets Acquisitions of financial assets at amortized cost Acquisitions Of Financial Assets At Amortized Cost Acquisitions of financial assets at amortized cost Acquisitions of financial asset at amortized cost Proceeds from disposal of financial assets at amortized cost Proceeds From Disposal Of Financial Assets At Amortized Cost Proceeds from disposal of financial assets at amortized cost Acquisitions of financial assets at fair value through profit or loss Acquisitions Of Financial Assets At Fair Value Through Profit Or Loss Acquisitions of financial assets at fair value through profit or loss Proceeds from disposals of financial assets at fair value through profit or loss Proceeds from disposals of financial assets at fair value through profit or loss Proceeds from disposal of financial assets at fair value through profit or loss Acquisitions of financial assets at fair value through other comprehensive income. Acquisitions of Financial Assets at Fair Value Through Other Comprehensive Income Acquisitions of financial assets at fair value through other comprehensive income The cash inflow from disposal of financial assets at fair value through other comprehensive income. Proceeds From Disposal Of Financial Assets At Fair Value Through Other Comprehensive Income Proceeds From Disposal Of Financial Assets At Fair Value Through Other Comprehensive Income Proceeds from disposal of financial assets at fair value through other comprehensive income Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities Acquisition of a subsidiary, net of cash acquired (paid) Proceeds from capital reduction of investment Proceeds From Capital Reduction Of Investment Proceeds from capital reduction of investment Acquisitions of equity method investments Acquisitions Of Equity Method Investments Acquisitions of equity method investments Decrease (increase) in refundable deposits Decrease Increase In Refundable Deposits Decrease (increase) in refundable deposits Releases (pledges) of restricted deposit Releases Pledges Of Restricted Deposit Releases of restricted deposit The cash inflow from the sale of land held for use; excludes sales of land held as inventory or investments. Ifrs Proceeds From Sale Of Land Held For Use Cash received in advance from disposal of land Cash flows from (used in) investing activities Net cash used in investing activities Cash flows from (used in) financing activities [abstract] Change from financing activities: Cash flows from financing activities: Payments to acquire or redeem entity's shares Purchase of treasury shares The amount of decrease (increase) in prepayments for purchase of treasury shares. Decrease (Increase) in Prepayments for Purchase of Treasury Shares Decrease (increase) in prepayments for purchase of treasury shares Dividends paid, classified as financing activities Payments of cash dividends The cash outflow for dividends equivalents paid by the entity, classified as financing activities. Dividends Equivalents, Classified as Financing Activities Payments of dividend equivalents Proceeds from issuing shares Proceeds from issuance of new shares by subsidiaries Payments from changes in ownership interests in subsidiaries that do not result in loss of control Purchases of subsidiary shares from noncontrolling interests Proceeds from current borrowings Proceeds from short-term unsecured borrowings Repayments of current borrowings Repayments of short-term unsecured borrowings Repayments of non-current borrowings Repayments of long-term unsecured borrowings The cash inflow from secured current borrowings obtained. Proceeds From Secured Borrowings Proceeds from short-term secured borrowings The cash outflow for repayments of secured current borrowings. Repayments Of Secured Borrowings Repayments of short-term secured borrowings Pledge of restricted deposit Payments For Pledge Of Restricted Deposit Pledge of restricted deposit Payments of lease liabilities, classified as financing activities Payment of lease liabilities Amount of guarantee deposits received (refunded), Classified as financing activities. Guarantee Deposits Received (Refunded), Classified As Financing Activities Guarantee deposits received (refunded) Cash flows from (used in) financing activities Net cash used in financing activities Effect of exchange rate changes on cash and cash equivalents Effect of foreign currency exchange rate changes on cash and cash equivalents Increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Reporting entity Disclosure of entity and it's operations Reporting entity [Text Block] Reporting entity Basis of preparation Disclosure of basis of preparation of financial statements [text block] Basis of preparation Represents the accounting standards. Application of new and revised IFRS as issued by the IASB Disclosure of changes in accounting policies [text block] Application of new and revised IFRS as issued by the IASB Material accounting policies Disclosure of significant accounting policies [text block] Material accounting policies Consolidation Disclosure of business combinations [text block] Consolidation Cash and Cash Equivalents Disclosure of cash and cash equivalents [text block] Cash and Cash Equivalents Financial Assets at Amortized Cost The disclosure Of Financial Assets At Amortized Cost Disclosure Of Financial Assets At Amortized Cost [Text Block] Financial Assets at Amortized Cost Financial Assets at Fair Value Through Profit or Loss Disclosure of financial instruments at fair value through profit or loss [text block] Financial Assets at Fair Value Through Profit or Loss Financial Assets at Fair Value Through Other Comprehensive Income Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [text block] Financial Assets at Fair Value Through Other Comprehensive Income Accounts Receivable, net (including related parties) Disclosure of trade and other receivables [text block] Accounts Receivable, net (including related parties) Inventories Disclosure of inventories [text block] Inventories Equity Method Investments Disclosure of investments accounted for using equity method [text block] Equity Method Investments Other Intangible Assets Disclosure of intangible assets [text block] Other Intangible Assets Property, Plant and Equipment Disclosure of property, plant and equipment [text block] Property, Plant and Equipment Disclosure of other current liabilities [text block] Other Current Liabilities Short-Term Borrowings Disclosure of borrowings [text block] Short-Term Borrowings No definition available. Long-Term Borrowings The disclosure of long term borrowings. Disclosure Of Long Term Borrowings Explanatory [Text Block] Long-Term Borrowings Employee benefits Disclosure of employee benefits [text block] Employee benefits Disclosure Of Sharebased Payment Arrangements Explanatory Share-Based Compensation Disclosure of share-based payment arrangements [text block] Share-Based Compensation Equity Disclosure of share capital, reserves and other equity interest [text block] Equity Disclosure Of Income Tax Explanatory Income Taxes Disclosure of income tax [text block] Income Taxes Financial Instruments Disclosure of financial instruments [text block] Financial Instruments Financial Risk Management Disclosure of financial risk management [text block] Financial Risk Management Capital management The entire disclosure for liabilities, cash and cash equivalents about managing business. Disclosure of Capital Management [Text Block] Capital management Related-party Transactions Disclosure of transactions between related parties [text block] Related-party Transactions Pledged assets The disclosure of pledged assets. Disclosure of Pledged Assets [Text Block] Pledged assets Commitments and Contingencies Disclosure of commitments and contingent liabilities [text block] Commitments and Contingencies Segment, Product and Geographic Information Disclosure of entity's operating segments [text block] Segment, Product and Geographic Information The Nature of Expenses Disclosure of expenses by nature [text block] The Nature of Expenses Himax Technologies, Inc. (the Parent Company only) Disclosure of general information about financial statements [text block] Himax Technologies, Inc. (the Parent Company only) Subsequent Events Disclosure of events after reporting period [text block] Subsequent Events Description of accounting policy for basis of consolidation explanatory Description Of Accounting Policy For Basis Of Consolidation Explanatory [Policy Text Block] Basis of Consolidation Description of accounting policy for subsidiaries [text block] List of Subsidiaries in the Consolidated Financial Statements Description of accounting policy for foreign currency translation [text block] Foreign Currency Description of accounting policy for classification between current and non current explanatory Description Of Accounting Policy For Classification Between Current and non current Explanatory [Policy Text Block] Classification of Current and Noncurrent Assets and Liabilities Description of accounting policy for cash flows [text block] Cash and Cash Equivalents Description of accounting policy for financial instruments [text block] Financial Instruments Description of accounting policy for measuring inventories [text block] Inventories Description of accounting policy for equity method investment explanatory Description Of Accounting Policy For Equity Method Investment Explanatory [Policy Text Block] Equity Method Investments Description of accounting policy for property, plant and equipment [text block] Property, Plant and Equipment Description of accounting policy for leases [text block] Leases Description of accounting policy for goodwill [text block] Goodwill Description of accounting policy for intangible assets other than goodwill [text block] Other Intangible Assets Description of accounting policy for impairment of non-financial assets [text block] Impairment of Non-Financial Assets Description of accounting policy for recognition of revenue [text block] Revenue Recognition Description of accounting policy for employee benefits [text block] Employee Benefits Description of accounting policy for income tax [text block] Income Taxes Description of accounting policy for business combinations [text block] Business Combinations Description of accounting policy for earnings per share [text block] Earnings Per Ordinary Share Description of accounting policy for segment reporting [text block] Segment Reporting Description of accounting policy for transactions with non-controlling interests [text block] Noncontrolling Interests Description of accounting policy for use of judgments and estimates Description Of Accounting Policy For Use of Judgments and Estimates Explanatory [Policy Text Block] Use of Judgments and Estimates Information about explanation of amendments of new and revised IFRS Amendments Of New Interpretation IFRS issued By The IASB [Table Text Block] Schedule of amendments to IFRS and new interpretations issued by the IASB effective for current year Information about explanation of not applied new standards or interpretations. Information About Explanation Of Not Applied New Standards Or Interpretations [Table Text Block] Schedule of new and revised standards, amendments and interpretations in issue but not yet effective Represents outline disclosure of entity and its subsidiaries Disclosure of detailed Information About Proportion Of Ownership Interest In Subsidiary [Table Text Block] Schedule of general information about Himax Technologies, Inc.'s subsidiaries Diluted Earnings Per share Table Text Block Diluted Earnings Per share Table Text Block Schedule of basic and diluted earnings per ordinary share Disclosure of detailed information about business combination [table] Disclosure of detailed information about business combination Consolidation Disclosure of detailed information about business combination [text block] Schedule of estimated fair value of the assets acquired and liabilities assumed at the date of Consolidation The disclosure of detailed information cash and cash equivalents Disclosure of detailed information about cash and cash equivalents [Text Block] Schedule of cash and cash equivalents The disclosure of detailed information of financial assets at amortized cost Disclosure of detailed information about financial assets at amortized cost [Text Block] Schedule of financial assets at amortized cost The disclosure of detailed information of financial assets at fair value through profit or loss Disclosure of detailed information about financial assets at fair value through profit or loss [Text Block] Summary of financial assets at fair value through profit or loss The disclosure of detailed information of trade and other receivables Disclosure of detailed information about trade and other receivables [Text Block] Schedule of accounts receivable, net The disclosure of detailed information of expected credit loss of accounts receivable Disclosure of detailed information about expected credit loss of accounts receivable [Text Block] Schedule of analysis of expected credit losses The disclosure of detailed information about inventories Disclosure of detailed information about Inventories text block [Text Block] Schedule of inventories The disclosure of detailed information about Investment in Associates Disclosure of detailed information about Investment in Associates [Text Block] Schedule of equity method investments in associates The disclosure of detailed information about share of profit (loss) of associated Disclosure of detailed information about Share of Associates [Text Block] Schedule of amount recognized by the Company at its share of those associates Disclosure of detailed information about intangible assets [text block] Schedule of other intangible assets The disclosure of detailed information about estimated useful life of intangible assets other than goodwill Disclosure of detailed information about estimated useful life of intangible assets other than goodwill [Text Block] Schedule of estimated useful lives of other intangible assets Disclosure of detailed information about property, plant and equipment [text block] Schedule of property, plant and equipment The disclosure of detailed information about estimated useful life of property plant and equipment Disclosure of detailed information about estimated useful life of property plant and equipment [Text Block] Schedule of estimated useful lives of property plant and equipment The tabular disclosure of lease liabilities. Disclosure of Lease Liabilities [Table Text Block] Schedule of lease liabilities The tabular disclosure of additional lease information. Disclosure of Additional Lease Information [Table Text Block] Schedule of additional lease information Disclosure of reconciliation of liabilities arising from financing activities [text block] Schedule of reconciliation of lease liabilities to cash flows arising from financing activities The disclosure of detailed information about Other Current Liabilities Disclosure of detailed information about Other Current Liabilities [Text Block] Schedule of other current liabilities The disclosure of detailed information about allowance for sales returns and discounts Disclosure of detailed information about allowance for sales returns and discounts [Text Block] Schedule of activity in the sales discounts Disclosure Of Detailed Information About short term borrowings Disclosure Of Detailed Information About short term borrowings [Text Block] Schedule of short-term borrowing Disclosure Of Detailed Information About Reconciliation Of Liabilities Arising From Financing Activities Disclosure Of Detailed Information About Reconciliation Of Liabilities Arising From Financing Activities [Text Block] Schedule of reconciliation of lease liabilities to cash flows arising from financing activities Disclosure Of Detailed Information About Long term borrowings. Disclosure Of Detailed Information About Long Term Borrowings Text Block Schedule of long-term borrowings Disclosure Of Detailed Information About Reconciliation Of Liabilities Arising From Financing Activities In Relation To Long Term Borrowings Disclosure Of Detailed Information About Reconciliation Of Liabilities Arising From Financing Activities In Relation To Long Term Borrowings [Text Block] Schedule of reconciliation of lease liabilities to cash flows arising from financing activities no definition Schedule of cash award expenses related to tax effects Disclosure Of ShareBased Payment Arrangements Explanatory Disclosure Of Share Based Payment Arrangements Explanatory [Table] Legal Entity. IFRS Legal Entity [Axis] Legal Entity. IFRS Legal Entity [Domain] This stands for CM Visual Technology Corp. [Member]. CM Visual Technology Corp CMVT CM Visual Technology Corp Liqxtal Technology Inc Liqxtal Technology Inc Disclosure Of Share Based Payment Arrangements Explanatory Disclosure Of Share Based Payment Arrangements Explanatory [Line Items] Share-Based Compensation The disclosure of detailed information of share based compensation expenses. Disclosure of Share based compensation expenses included cost of sales [Table Text Block] Schedule of share-based compensation expenses The disclosure of detailed information of restricted stock units. Disclosure of RSU [Table Text Block] Schedule of RSUs activity under the long-term incentive plan The disclosure of detailed information of restricted stock units compensation expenses. Disclosure of RSU compensation expenses [Table Text Block] Schedule of allocation of compensation expenses and related tax effects from the RSUs granted to employees under the long-term incentive plan The disclosure of detailed information of share based compensation share options valuation allowance. Share Based Compensation Share options Valuation Assumptions [Table Text Block] Schedule of valuation assumptions The disclosure of detailed information of stock option activity. Share Based compensation Stock Option activity [Table Text Block] Schedule of stock option activity Disclosure Of Additional Paid in Capital Disclosure Of Additional Paid in Capital [Table Text Block] Schedule of balance of additional paid-in capital Disclosure Of Accumulated Other Comprehensive Income Disclosure Of Accumulated Other Comprehensive Income [Table Text Block] Schedule of changes in accumulated other comprehensive income, net of tax Non controlling Interest Non controlling Interest [Table Text Block] Schedule of noncontrolling interest Disclosure Of Income Tax Expense Benefit Recognized in Profit or Loss Disclosure Of Income Tax Expense Benefit Recognized in Profit or Loss [Table Text Block] Schedule of income tax expense (benefit) recognized in profit or loss The disclosure Of Detailed Information Of Income taxes expense (benefit) recognized directly in other comprehensive income Disclosure Of Detailed Information Of Income taxes expense benefit recognized directly in other comprehensive income [Table Text Block] Schedule of income taxes expense (benefit) recognized directly in other comprehensive income The disclosure of detailed information about income tax reconciliation. Disclosure Of Detailed Information About Income Tax Reconciliation [Table Text Block] Schedule of reconciliation of the expected income tax expense computed based on the ROC statutory income tax rate, compared with the actual income tax expense as reported in the consolidated statements of profit or loss Disclosure of deferred taxes [text block] Schedule of components of deferred tax assets and deferred tax liabilities Th disclosure of detailed information about movement of deferred tax assets and deferred tax liabilities. Disclosure Of Detailed Information About Movement Of Deferred Tax Assets And Deferred Tax Liabilities [Table Text Block] Schedule of changes in deferred tax assets and liabilities Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Schedule of unrecognized deferred tax assets Disclosure of detailed information about unrecognized deferred tax assets of unused operating loss carry forwards. Disclosure of detailed information about unrecognized deferred tax assets of unused operating loss carry forwards [Table Text Block] Schedule of unrecognized deferred tax assets of unused operating loss carry forwards Disclosure of detailed information about financial instruments [text block] Schedule of financial assets Disclosure of detailed information about financial liabilities. Disclosure Of Detailed Information About Financial Liabilities [Text Block] Schedule of financial liabilities Disclosure of detailed information about non derivative financial liabilities. Disclosure of detailed information about maturity analysis for nonderivative financial liabilities [Text Block] Schedule of contractual maturities of financial liabilities, including estimated interest payments of unsecured borrowings, secured borrowings and lease liabilities Disclosure of detailed information about currency risk. Disclosure of detailed information about currency risk [Text Block] Schedule of company's significant exposure to foreign currency risk Disclosure of detailed information about financial assets at fair value. Disclosure of detailed information about financial assets at fair value [Text Block] Schedule of fair value hierarchy Disclosure Of Detailed Information About Financial Assets At Fair Value Level3 Hierarchy. Disclosure Of Detailed Information About Financial Assets At Fair Value Level3 Hierarchy [Text Block] Schedule of movement in financial assets included in Level 3 of fair value hierarchy Disclosure of detailed information about sales percentage. Disclosure of detailed information about sales percentage from significant customer [Text Block] Schedule of sales percentage from significant customer Disclosure of detailed information about accounts receivables percentage. Disclosure of detailed information about Accounts receivable Percentage from significant customers [Text Block] Schedule of accounts receivable percentage from significant customers The e disclosure of detailed information about for liabilities, cash and cash equivalents about managing business. Disclosure of detailed information about Capital Management [Text Block] Schedule of capital management Disclosure of detailed information about related party transactions. Disclosure of detailed information about transactions between related parties [Text Block] Schedule of transactions between related parties Disclosure of detailed information about provision of key management personnel services that are provided by separate management entities. Disclosure of detailed information about key management personnel services provided by separate management entities [Text Block] Schedule of compensation of key management personnel The disclosure of detailed information about pledged assets. Disclosure Of Detailed Information About Pledged assets [Text Block] Schedule of pledged assets Disclosure of detailed information about segment reporting. Disclosure of detailed information about segment reporting [Text Block] Schedule of segment reporting Disclosure of detailed information about segment revenues in geographic. Disclosure of detailed information about segment revenues in geographic region [Text Block] Schedule of segment revenues in geographic region Disclosure of detailed information about segment revenues in major products lines. Disclosure of detailed information about segment revenues in major product lines [Text Block] Schedule of segment revenues from major product lines The disclosure of detailed information about tangible long lived assets. Disclosure Of Detailed Information About Tangible Long lived Assets Explanatory [Text Block] Schedule of carrying values of company's tangible long-lived assets Disclosure of detailed information about segmenting the revenues by customers Disclosure Of Detailed Information About segmenting revenues by customers [Text Block] Schedule of revenues from significant customers Disclosure of detailed information about trade receivables. Disclosure Of Detailed Information About trade receivables [Text Block] Schedule of accounts receivable from significant customers Schedule showing information about recognition of contract liabilities in relation to revenue from contract with customers. Contract Liabilities in Relation to Revenue from Contracts with Customers [Table Text Block] Schedule of contract liabilities in relation to revenue from contracts with customers The disclosure of detailed information about depreciation of property plant and equipment. Disclosure of detailed information about depreciation of property plant and equipment [Text Block] Schedule of depreciation of property, plant and equipment The disclosure of detailed information about amortization of intangible assets. Disclosure of detailed information about Amortization of intangible assets [Text Block] Schedule of amortization of intangible assets The disclosure of detailed information about Employee benefits expense. Disclosure of detailed information about employee benefit expense [Text Block] Schedule of employee benefit expense Disclosure of detailed information about Condensed statements of financial position Disclosure of detailed information about Condensed Statements Of financial Position [Text Block] Schedule of condensed statements of financial position Disclosure of detailed information about statement of profit or loss. Disclosure of detailed information about statement of profit or loss [Text Block] Schedule of condensed statement of profit or loss Disclosure of detailed information about statement of other comprehensive income. Disclosure of detailed information about statement of Other comprehensive income [Text Block] Schedule of condensed statements of other comprehensive income Disclosure of detailed information about statement of cashflows. Disclosure of detailed information about Statement of cash flows [Text Block] Schedule of condensed statements of cash flows New IFRSs [axis] New IFRSs [domain] n/a Amendments to IAS 21 Lack of Exchangeability[Member] Amendments to IAS 21 "Lack of Exchangeability" Amendments to IFRS 10 and IAS 28 "Sale or Contribution of Assets between An Investor and Its Associate or Joint Venture" Amendments to IFRS 10 and IAS 28 "Sale or Contribution of Assets Between an Investor and Its Associate or Joint Venture" Member represents Amendments to IFRS 9 and IFRS 7 "Amendments to the Classification and Measurement of Financial Instruments. Amendments to IFRS 9 and IFRS 7, Classification and Measurement of Financial Instruments [Member] Amendments to IFRS 9 and IFRS 7 "Amendments to the Classification and Measurement of Financial Instruments" Members represents Annual Improvements to IFRS Accounting Standards-Volume 11. Annual Improvements to IFRS Accounting Standards Volume 11 [Member] Annual Improvements to IFRS Accounting Standards-Volume 11 Members represents IFRS 18 Presentation and Disclosure in Financial Statements. IFRS 18 Presentation and Disclosure in Financial Statements [Member] IFRS 18 "Presentation and Disclosure in Financial Statements" n/a IFRS 19 Subsidiaries without Public Accountability Disclosures and Amendments [Member] IFRS 19 "Subsidiaries without Public Accountability: Disclosures" and amendments to IFRS 19 "Subsidiaries without Public Accountability: Disclosures" Title Of New IFRS Title of new IFRS Date by which application of new IFRS is required Date by which application of new IFRS is required Implementation date not yet determined by IASB Determination Subject To IASB Approval Determination Subject To IASB Approval Subsidiaries [axis] Subsidiaries [domain] Himax Technologies Limited Himax Taiwan Himax Technologies Limited ("Himax Taiwan") Himax Technologies Korea Ltd Himax Technologies Korea Ltd Himax Technologies Japan Ltd Himax Technologies Japan Ltd Himax Semiconductor Hong Kong Limited Himax Semiconductor (Hong Kong) Limited Himax Imaging Inc Himax Imaging, Inc Represents information pertaining to Viewsil Microelectronics Shanghai Limited Viewsil Microelectronics Shanghai Limited [Member] Viewsil Microelectronics (Shanghai) Limited ("Viewsil") n/a Viewsil Technology Limited [Member] Viewsil Technology Limited Himax Technologies Samoa Inc Himax Technologies (Samoa), Inc Himax Technologies Suzhou Co Ltd Himax Technologies (Suzhou) Co., Ltd Himax Technologies Shenzhen Co Ltd Himax Technologies (Shenzhen) Co., Ltd Himax Display Inc Himax Display, Inc Integrated Microdisplays Limited Integrated Microdisplays Limited Himax Display USA Inc Himax Display (USA) Inc Himax Analogic Inc Himax Analogic Inc Himax Imaging Ltd Imaging Taiwan Himax Imaging, Ltd. ("Imaging Taiwan") Himax Imaging Corp Himax Imaging Corp Harvest Investment Limited Harvest Investment Limited Represents information pertaining to New Ken Technologies Co Ltd. New Ken Technologies Co Ltd [Member] New Ken Technologies Co., Ltd Himax IGI Precision Ltd Himax IGI Precision Ltd This stands for Solvanta Investment Limited. Solvanta Investment Limited [Member] Solvanta Investment Limited This stands for Solvanta Energy Limited. Solvanta Energy Limited [Member] Solvanta Energy Limited Geographical areas [axis] Geographical areas [domain] RUSSIAN FEDERATION ROC South Korea Korea Japan Japan Hong Kong operations Hong Kong operations Samoa Samoa China [Member] China PRC VIRGIN ISLANDS, BRITISH British Virgin Islands Delaware USA Delaware USA Cayman Islands Cayman Islands California USA California USA Business combinations [axis] Business combinations [domain] Viewsil Microelectronics (Kunshan) Limited Viewsil Microelectronics (Kunshan) Limited Name of parent entity Investor Name of subsidiary Subsidiary The nature of business of a subsidiary. Nature Of Business Main activities Country of incorporation of subsidiary Jurisdiction of Incorporation Proportion of ownership interest in subsidiary Percentage of Ownership Proportion of voting rights held in associate Proportion of voting rights held in associate Weighted Average Basic shares [Abstract] Denominator for basic earnings per ordinary share: Weighted average number of ordinary shares outstanding Weighted average number of ordinary shares outstanding Weighted Average diluted shares Abstract Weighted Average diluted shares [Abstract] Denominator for diluted earnings per ordinary share: Dilutive Effect Of Unvested Restricted Stock Units Unvested RSUs Adjusted weighted average number of ordinary shares outstanding Adjusted weighted average number of ordinary shares outstanding The number of weighted average basic number of ADS equivalent shares outstanding. Weighted Average Basic Number of ADS Equivalent Outstanding Weighted Average Basic Number of ADS Equivalent Outstanding The number of weighted average diluted number of ADS equivalent shares outstanding. Weighted Average Diluted Number of ADS Equivalent Outstanding Weighted Average Diluted Number of ADS Equivalent Outstanding Classes of property, plant and equipment [axis] Classes of property, plant and equipment [domain] Buildings Building and improvements Machinery Research and development equipment Office furniture and equipment [Member] Office furniture and equipment Other property, plant and equipment [member] Others This member stands for a class of property, plant and equipment representing embedded software. Embedded Software [Member] Embedded software Legal Entity axis [Axis] Legal Entity [Domain] Himax semi conductor Classes of intangible assets other than goodwill [axis] Classes of intangible assets other than goodwill [domain] Software Technology Intellectual Properties Cash-generating units [axis] Cash-generating units [domain] Driver IC CGU WLO CGU Range [axis] Range [domain] Bottom of range Bottom of range Top of range Top of range The estimated Useful life of acquired intangible assets Assets Acquired Useful Life Assets Acquired Useful Life Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Ifrs Number of Operating Segments Number of operating segments Discount rate applied to cash flow projections Annual discount rate Growth rate used to extrapolate cash flow projections Growth rate used to extrapolate cash flow projections Goodwill recognised as of acquisition date Goodwill recognised as of acquisition date The estimated Useful life of tangible assets Useful Life Of Tangible Assets Useful Life Of Tangible Assets The period for average Taiwan economic growth rate. Period for Average Economic Growth Rate Period for average Taiwan economic growth rate Attribution of expenses by nature to their function [axis] Attribution of expenses by nature to their function [domain] This member stands for other gains (losses) in the statements of profit or loss. Other Gains (Losses) [Member] Other gains (losses) Represents the number of board members in associates. Number of Board Members in Associates Number of board directors Represents the number of Number of board members that entity has right to assign in associate. Number of Board Members that Entity has Right to Assign in Associates Number of board members Revenue of combined entity as if combination occurred at beginning of period Revenue of combined entity as if combination occurred at beginning of period Profit (loss) of combined entity as if combination occurred at beginning of period Profit (loss) of combined entity as if combination occurred at beginning of period Amounts recognised as of acquisition date for each major class of assets acquired and liabilities assumed [abstract] Recognized amounts of identifiable assets acquired and liabilities assumed: Cash and cash equivalents recognised as of acquisition date Cash Current assets recognised as of acquisition date Current assets, other than cash The amount recognised as of the acquisition date for other assets acquired in a business combination. [Refer: Current assets; Business combinations [member]] Other Assets Recognised as of Acquisition Date Other assets Current liabilities recognised as of acquisition date Other current liabilities Identifiable assets acquired (liabilities assumed) Total identifiable net assets obtained Non-controlling interest in acquiree recognised at acquisition date Noncontrolling interests Consideration transferred, acquisition-date fair value Total net assets consolidated Cash Cash, demand deposits and checking accounts Short-term deposits, classified as cash equivalents Time deposits with less than three months maturity date Classes of financial assets [axis] Classes of financial assets [domain] n/a Money Market Fund [Member] Money market fund n/a Equity Securities, Unlisted Company [Member] Equity securities-unlisted company Warrants [member] Warrant-unlisted company Financial assets at fair value through profit or loss. Total financial assets at fair value through profit or loss Financial assets at fair value through profit or loss Equity investments Investments in equity instruments designated at fair value through other comprehensive income Capital reduction from equity security investments designated as at FVTOCI Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table] Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items] Accounts Receivable, net (including related parties) The amount of trade receivables and other receivables before valuation allowances. Trade And Other Receivables Before Allowances Accounts receivable Receivables due from related parties Accounts receivable from related parties The amount of allowance for loss related to trade receivables Allowance For Loss On Trade And Other Receivables Less: Loss allowance Trade and other receivables Accounts receivable, net Carrying amount of accounts receivable Past due status [axis] Past due status [domain] No Past Due Past due within 30 days Past due 31-60 days Past due 61-90 days n/a Later Than Ninety One Days And Not Later Than One Hundred And Twenty Days Member Past due 91-120 days Past due over 121 days Expected credit loss rate Weighted average loss rate The amount of lifetime expected credit loss allowance. Lifetime expected credit losses Loss allowance for lifetime expected credit Current finished goods Finished goods Current work in progress Work in process Current raw materials Raw materials Current production supplies Supplies Cost of inventories recognised as expense during period Cost of revenues Associates [axis] Associates [domain] Ganzin Technology Corp. Iris Optronics Co Ltd n/a Guangzhou Pixtalks Information Technology Co Ltd the amount of prilit optronics Prilit Optronics, Inc The member stands for Tilt Five, Inc. Tilt Five Inc [Member] Tilt Five, Inc Represent the member of calumino Pty Limited. Calumino Pty Limited [Member] Calumino Pty Limited The principal activities of business of an associate Principal Activities Principal Activities Principal place of business of associate Place of Incorporation and Operation Investments in associates accounted for using equity method Carrying amount Proportion of ownership interest in associate Holding Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax The Company's share of other comprehensive income of associates Share of total comprehensive income of associates and joint ventures accounted for using equity method The Company's share of total comprehensive income of associates The unrecognized gain loss interest in equity method investments. Unrecognized Gain Loss Interest In Equity Method Investments Unrecognized losses related to interest The cumulative unrecognized gain loss interest in equity method investments. Cumulative Unrecognized Gain Loss Interest In Equity Method Investments Cumulative unrecognized losses related to interest The equity method investments was pledged as collateral. Equity Method Investments Pledged As Collateral Equity method investments pledged as collateral Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying Amount [member] Gross carrying amount [member] Gross carrying amount Cost Accumulated depreciation and amortisation [member] Accumulated Amortization Accumulated Depreciation This member represents other intangible assets. Others. Intangible assets other than goodwill Ending Balance Opening Balance Acquisitions through business combinations, intangible assets other than goodwill Acquisitions through business combinations Increase (decrease) through transfers, intangible assets other than goodwill Reclassified from other current assets Additions other than through business combinations, intangible assets other than goodwill Additions Amortisation, intangible assets other than goodwill Amortization of intangible assets Amortization for the year The decrease in intangible assets other than goodwill resulting from disposals. [Refer: Intangible assets other than goodwill] Disposals of other Intangible assets Disposals Increase (decrease) through net exchange differences, intangible assets other than goodwill Effect of exchange rate changes Others [member] Others Useful life measured as period of time, intangible assets other than goodwill Disclosure of detailed information about property, plant and equipment [table] Land Office furniture and equipment Prepayments for purchase of equipment and construction in progress Disclosure of detailed information about property, plant and equipment [line items] Acquisitions through business combinations, property, plant and equipment Acquisitions through business combinations Depreciation, property, plant and equipment Depreciation, property, plant and equipment Depreciation for the year Additions other than through business combinations, property, plant and equipment Additions Increase (decrease) through transfers, property, plant and equipment Transfers Disposals, property, plant and equipment Disposals Increase (decrease) through net exchange differences, property, plant and equipment Effect of exchange rate changes Future cash outflow to pay for purchases of fixed assets that have occurred. IFRS Capital Expenditures Incurred but Not yet Paid Non-cash capital expenditures related to property, plant and equipment Impairment loss recognised in profit or loss, property, plant and equipment Impairment loss on property, plant and equipment Minimum [Member] Minimum Maximum [Member] Maximum Useful life measured as period of time, property, plant and equipment Useful life measured as period of time, property, plant and equipment Disclosure of initial application of standards or interpretations [table] Initially applied IFRSs [axis] Initially applied IFRSs [domain] This member stands for IFRS 16. IFRS 16 This member stands for a class of property, plant and equipment representing offices and depreciable buildings and similar structures for use in operations. Offices and Buildings [Member] Offices and Buildings Disclosure of initial application of standards or interpretations [line items] Right-of-use assets Right-of-use assets Additions to right-of-use assets Addition to right-of use assets Depreciation, right-of-use assets Depreciation expense of right-of use assets Lease liabilities [abstract] Lease liabilities Current lease liabilities Lease liabilities Current portion (classified under other current liabilities) Non-current lease liabilities Non-current portion (classified under other non-current liabilities) Lease liabilities Total lease liabilities Lease liabilities Expense relating to short-term leases for which recognition exemption has been used Expenses relating to short-term leases Expense relating to leases of low-value assets for which recognition exemption has been used Expenses relating to low-value asset leases Expense relating to variable lease payments not included in measurement of lease liabilities Expenses relating to variable lease payments not included in the measurement of lease liabilities Liabilities arising from financing activities Balance at end of year Balance at beginning of year Changes in liabilities arising from financing activities [abstract] Change from financing activities: Cash outflow for leases Payment of lease liabilities Increase (decrease) through financing cash flows, liabilities arising from financing activities Total change from financing activities No definition available. Other Changes In Liabilities Arising From Financing Activities [Abstract] Other changes: Increase through new leases, liabilities arising from financing activities New lease The increase (decrease) in liabilities arising from financing activities resulting from interest expenses. Increase Decrease Through Interest Expense, Liabilities Arising From Financing Activities Interest expense The increase (decrease) in liabilities arising from financing activities resulting from interest payments. Increase Decrease Through Interest Paid, Liabilities Arising From Financing Activities Interest paid The increase (decrease) in liabilities arising from financing activities resulting from lease modifications. Increase (Decrease) Through Leases Modifications Liabilities Arising from Financing Activities Lease modifications Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities Effect of exchange rate changes Effect of exchange rate changes Increase (decrease) through other changes, liabilities arising from financing activities Total liability-related other changes Amount of Accrued payroll and related expenses Accrued payroll and related expenses Accrued payroll and related expenses Amount of Accrued mask mold fees and other expenses for research and development Accrued mask mold fees and other expenses for research and development Accrued mask, mold fees and other expenses for RD The amount of advances received from disposal of land. Current Advances, Disposal Of Land Received in advance from disposal of land Amount of Accrued software maintenance Accrued software maintenance Accrued software maintenance Amount of Payable for purchases of building and equipment Payable for purchases of building and equipment Payable for purchases of building and equipment Amount of Allowance for sales returns and discounts Allowance for sales discounts Allowance for sales return and discounts Current onerous contracts provision Provision on onerous inventory contract Amount of Accrued insurance, welfare expenses, professional fee Accrued insurance welfare expenses professional fee Accrued insurance, welfare expenses, professional fee and others Represents amount of allowance in accordance with sales returns and discounts Allowance Sales Returns And Discounts Beginning Balance Balance at beginning of year Amount of charges to earnings related to with sales returns and discounts Charges To Earnings Sales Returns And Discounts Charges to earnings Amount of loss allowance written off related to with sales returns and discounts Write Offs Sales Returns And Discounts Amounts utilized Represents amount of allowance in accordance with sales returns and discounts Allowance Sales Returns And Discounts Ending Balance Balance at end of year Disclosure of detailed information about borrowings [table] Liabilities arising from financing activities [axis] Liabilities arising from financing activities [domain] Short-term borrowings [member] Short-Term Borrowings Disclosure of detailed information about borrowings [line items] Short-Term Borrowings Long-Term Borrowings Unsecured bank loans received Unsecured borrowings Secured bank loans received Short-term secured borrowings Secured borrowings Other borrowings Unused credit lines Unused long-term credit lines Borrowings, interest rate Interest rate Borrowings by name [axis] Borrowings by name [domain] This member stands for unsecured borrowings. Unsecured Borrowings This member stands for secured borrowings. Secured Borrowings Increase (decrease) through obtaining or losing control of subsidiaries or other businesses, liabilities arising from financing activities Acquisitions through business combinations Acquisitions through business combinations The increase in liabilities arising from financing activities resulting from financing cash flows. Increase Through Financing Cash Flows Liabilities Arising From Financing Activities Proceeds from borrowings Proceeds from borrowings The decrease in liabilities arising from financing activities resulting from financing cash flows. Decrease Through Financing Cash Flows Liabilities Arising From Financing Activities Repayments of borrowings Repayments of borrowings Increase (decrease) in liabilities arising from financing activities Total changes from financing activities Amount of deposit as cash Cash and time deposits Cash and time deposits The portion of unused credit lines amount which expire as of the balance sheet date belonging to the parent company. Unused Credit Lines Amount Expired Amount Belonging To The Parent Company Amount of unused credit lines will expire before the end of March 2026 The amount of assets Needs to be Secured When Borrowings Money From Bank. Assets Needs to be Secured When Borrowings Money From Bank Assets needs to be secured when borrowings money from bank Long-term borrowings [member] Long-term unsecured borrowings (including current portion) Long-term unsecured borrowings Current unsecured bank loans received and current portion of non-current unsecured bank loans received Less: current portion The amount of total change from financing cash flows. Total Change From Financing Cash Flows Total changes from financing activities It stands for Chang Hwa Bank. Chang Hwa Bank [Member] Chang Hwa Bank Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Ifrs Debt Instrument Term Debt instrument term Amount of assets pledged to secure a debt instrument. Debt Instrument Collateral Amounts Pledged collateral amount Defined benefit plans [axis] Defined benefit plans [domain] Defined contribution plans Post-employment benefit expense, defined contribution plans Contribution expense to the plan company make contribution to employees monthly wages percentage Percentage Of Wages Contribution To Employee Percentage of wages contribution to employee The fair value of defined benefit plan assets deposited in bank. Plan assets, at fair value, Deposited in Bank Plan assets Defined benefit obligation, at present value Present value of the defined benefit obligations Wages and salaries Salary It represents of employee benefits expenses. Labour And Social Welfare Labour and social welfare It represents of Other foreign subsidiaries recognized pension expenses during period. Other Pension Expenses Other Foreign Subsidiaries Pension Expenses Characteristics of defined benefit plans [axis] Characteristics of defined benefit plans [domain] Represents information pertaining to cash award expenses. Cash Award Expenses [Member] Cash award expenses Administrative expenses General and administrative Employee benefits expense Employee benefits expense Total compensation Other long-term employee benefits Total annual bonus cash payouts Employee contributions Vested on grant date Types of share-based payment arrangements [axis] Types of share-based payment arrangements [domain] Share Based Compensation Cost of sales [member] Cost of revenues This member stands for research and development expenses. Ifrs Research And Development Expense [Member] Research and development This member stands for general and administrative expenses. Ifrs General And Administrative Expense [Member] General and administrative This member stands for sales and marketing expenses. Sales and Marketing Expenses [Member] Sales and marketing Expense from share-based payment transactions with employees Compensation expenses Total compensation Share-based compensation expenses Restricted share units [member] Restricted share units Number of other equity instruments outstanding in share-based payment arrangement Number of Shares, Balance Number of Shares, Balance Number of other equity instruments granted in share-based payment arrangement Number of RSUs granted in share-based payment arrangement Number of Shares, Granted Number of other equity instruments exercised or vested in share-based payment arrangement Number of Shares, Vested Number of other equity instruments forfeited in share-based payment arrangement Number of Shares, Forfeited Weighted average exercise price of other equity instruments outstanding in share-based payment arrangement Weighted Average Grant Date Fair Value, Balance Weighted Average Grant Date Fair Value, Balance Weighted average exercise price of other equity instruments granted in share-based payment arrangement Weighted Average Grant Date Fair Value, Granted Weighted average exercise price of other equity instruments exercised or vested in share-based payment arrangement Weighted Average Grant Date Fair Value, Vested Weighted average exercise price of other equity instruments forfeited in share-based payment arrangement Weighted Average Grant Date Fair Value, Forfeited Information or disclosure pertaining to stock option plan. Stock Option Plan [Axis] Information or disclosure pertaining to stock option plan. Stock Option Plan [Domain] Represents the information pertaining to stock options, the 2021 plan. Stock options 2021 plan [Member] Stock options 2021 plan Represents the information pertaining to stock options, the 2023 plan. Stock Option 2023 Plan [Member] Stock option 2023 plan n/a Stock Option 2025 Plan [Member] Stock option 2025 plan Share Based Compensation Valuation Assumptions And Methodology [Abstract] Valuation assumptions: Expected dividend as percentage, share options granted Expected dividend yield Expected volatility, share options granted Expected volatility Description of option life share options granted. Description Of Options Life Share Option Granted Expected term (years) Risk free interest rate, share options granted Risk-free interest rate The weighted average remaining contractual life of granted. Weighted Average Remaining Contractual Life Of Granted 2019 Weighted average remaining contractual term, Balance (in years) Number of share options outstanding in share-based payment arrangement Number of units/shares, Balance Number of units/share, Balance Number of share options granted in share-based payment arrangement Number of units/share, Granted Number of share granted Number of share options forfeited in share-based payment arrangement Number of units/shares, Forfeited Number of share options exercisable in share-based payment arrangement Number of units/shares, Exercisable The number of share options decreased, effect of capital reduction in a share-based payment arrangement. Number Of Share Options Decrease, Effect Of Capital Reduction, share-based payment arrangement Effect of capital reduction Weighted average exercise price of share options outstanding in share-based payment arrangement Weighted average exercise price, Balance Weighted average exercise price, Balance Weighted average exercise price of share options granted in share-based payment arrangement Weighted average exercise price, Granted The weighted average exercise price of share options for the effect of capital reduction in a share-based payment arrangement. Weighted Average Exercise Price of Share Options for the Effect of Capital Reduction in Share-based Payment Arrangement Weighted average exercise price, Effect of capital reduction Weighted average exercise price of share options forfeited in share-based payment arrangement Weighted average exercise price, Forfeited Weighted average exercise price of share options exercisable in share-based payment arrangement Weighted average exercise price, Exercisable Weighted average remaining contractual life of outstanding share options Weighted average remaining contractual term, Balance (in years) Weighted average remaining contractual life of unvested RSUs The weighted average remaining contractual life of exercisable share options. Weighted Average Remaining Contractual Life Of Exercisable Share Options 2019 Weighted average remaining contractual term, Exercisable (in years) Stock Option 2016 Plan Member Stock Option 2016 Plan [Member] Stock Option 2016 Plan Represents the information about Imaging Taiwan. Imaging Taiwan Imaging Taiwan Represents the information about Himax Imaging. Himax Imaging Himax Imaging IFRS Issuer Equity Type IFRS Issuer Equity Type [Axis] IFRS Issuer Equity Type IFRS Issuer Equity Type [Domain] Represents information pertaining to ROC Central Government. R O C Central Government [Member] ROC Central Government Information pertaining to stock option vesting. IFRS Stock Option Vesting [Axis] Information pertaining to stock option vesting. IFRS Stock Option Vesting [Domain] One And Half Years After Grant Date Member One And Half Years After Grant Date [Member] One And Half Years After Grant Date Three Years After Grant Date Member Three Years After Grant Date [Member] Three Years After Grant Date Information by vesting schedule of award under share-based payment arrangement. IFRS Vesting [Axis] Vesting schedule of award under share-based payment arrangement. IFRS Vesting [Domain] n/a IFRS Share-Based Payment Arrangement, Tranche One [Member] Tranche one n/a IFRS Share-Based Payment Arrangement, Tranche Two [Member] Tranche two n/a IFRS Share-Based Payment Arrangement, Tranche Three [Member] Tranche three Share based compensation contractual life Share Options Contractual Life Share options contractual life share based compensation vesting period Share Options Vesting period Share options vesting period Share Based Compensation Vesting Rights Percentages Share Based Compensation Vesting Rights Percentages Share Based Compensation Vesting Rights Percentages Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Share Based Compensation Risk Free Interest Rate Expected Term Share based compensation risk free interest rate expected term The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Share Based Compensation No Of Shares Authorized Share based compensation no of shares authorized Decrease (increase) through tax on share-based payment transactions, equity Income tax benefits Percentage Of Restricted Stock Units Grant Vested Percentage Of Restricted Stock Units Grant Vested Percentage of restricted stock units grant vested amount of cash settle by ordinary shares percentage of vested settled by ordinary shares One Percentage of vested settled by ordinary shares one amount of cash settle by ordinary shares percentage of vested settled by ordinary shares Two Percentage of vested settled by ordinary shares two amount of cash settle by ordinary shares percentage of vested settled by ordinary shares Three Percentage of vested settled by ordinary shares three Estimated fair value of market price of ADS granted Estimated Fair Value Market Price Of A D S Estimated fair value of market price of ADS Company settle RSU shares by shares. Restricted stock units settle by shares Restricted stock unit settle by shares The maximum number of share options authorized for grant in a share-based payment arrangement. Maximum Number of Share Options Authorized for Grant in Share Based Payment Arrangement Maximum number of shares authorized for grant Exercise price, share options granted Exercise price, share options granted Employee Service Share-based Compensation, unvested Awards, Compensation Cost Not yet Recognized, Total. Employee Service ShareBased Compensation unvested Awards Total Compensation Cost Not Yet Recognized Compensation Cost Not Yet Recognized Restricted stock unit settled by cash. Restricted Stock Units Settled by cash Restricted stock units settled by cash Percentage of vesting of share-based compensation awards. Share Based Compensation arrangement Vesting Rights Percentage Share Based Compensation Vesting Rights Percentage n/a Share Of Changes In Equities Of Associates And Subsidiaries [Member] Share of changes in equities of associates and subsidiaries Classes of ordinary shares [axis] Classes of ordinary shares [domain] Ordinary Share Additional Paid In Capital Increase Decrease Through Ordinary shares Additional Paid In Capital Increase Decrease Through Ordinary shares From ordinary shares Sale or issue of treasury shares From treasury shares Additional Paid In capital Increase Decrease Through Share Based Compensation Additional Paid In capital Increase Decrease Through Share Based Compensation From share-based compensation Currency Translation Currency Translation [Axis] Currency Translation [Domain] Foreign currency translation Fair Value Measurement And Adjustment Fair Value Measurement And Adjustment [Axis] Fair Value Measurement And Adjustment Fair Value Measurement And Adjustment [Domain] Unrealized Gain losses On Securities Unrealized gains (losses) on securities Defined benefit pension plans The exchange difference due to translation of foreign operations Exchange Difference On Translation Of Foreign Operations Exchange differences arising on translation of foreign operations Exchange differences arising on translation of foreign operations The changes in fair value of financial assets Changes In Fair value Of Financial Assets Changes in fair value of financial assets Remeasurement of defined benefit pension plans Remeasurement Of Defined Benefit Pension Plan Remeasurement of defined benefit pension plans Remeasurement of defined benefit pension plans Equity AttriButable To Non Controlling Interest Equity AttriButable To Non Controlling Interest [Abstract] Equity attributable to non-controlling interests New shares issued by subsidiary New shares Issued By Subsidiary New shares issued by subsidiaries Acquired the controlling power from non-controlling interests. Acquired the controlling power from noncontrolling interest Purchase of subsidiary shares from noncontrolling interests Purchase Of Subsidiary Shares From Non Controlling Interest Purchase of subsidiaries shares from noncontrolling interest Issued capital N/A IFRS Class of Stock [Axis] N/A IFRS Class of Stock [Domain] American Depositary Receipt (or American Depositary Share, ADS). American Depositary Receipt [Member] ADR Par value per share Number of shares authorised Number of shares authorized Share Repurchase Program, Authorized, Amount Share repurchase Total cost of shares repurchased divided by the total number of shares repurchased. Ifrs Shares Acquired, Average Cost Per Share Shares acquired Number of shares issued Number of shares issued It represents the value of accumulated legal and special reserve. Accumulated Legal and special reserve Accumulated legal and special reserve The percentage of annual net income set aside as a legal reserve. Percentage Of Annual Net Income Set Aside As Legal Reserve Dividend payables Cash dividend The dividend payables per shares. Dividend Payables, Per Share Cash dividend, per shares Current tax expense (income) and adjustments for current tax of prior periods [abstract] Current tax expense Current tax expense (income) Current period Adjustments for current tax of prior periods Adjustment for prior periods Current tax expense (income) and adjustments for current tax of prior periods Current tax expense (income) and adjustments for current tax of prior periods Deferred tax expense (income) [abstract] Deferred tax expense Deferred tax expense (income) relating to origination and reversal of temporary differences Origination and reversal of temporary differences The amount of deferred tax expense or income relating to investment tax credits and operating loss carryforwards. Deferred Tax Expense Income Relating to Investment Tax Credits and Operating Loss Carry forward Investment tax credits and operating loss carryforward Deferred tax expense (income) Deferred tax expense Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] Items that will not be reclassified to profit or loss: Accounting profit Profit before income taxes Applicable tax rate Income tax expense calculated at the statutory rate The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from effect on undistributed earnings. Tax rate effect on undistributed earnings Tax on undistributed earnings The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from effect of legal reserve being set aside from prior year's income. Tax rate effect resulting from setting aside legal reserve from prior years income Tax benefit resulting from setting aside legal reserve from prior year's income The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from effect of increase in tax credits. Tax rate effect resulting from increase in tax credits Increase in tax credits The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from effect of change in unrecognized deductible temporary differences, tax loss carryforwards and investment tax credits. Tax rate effect resulting from change in unrecognized deductible temporary differences tax loss carry forwards and investment tax credits Effect of change of unrecognized deductible temporary differences and tax losses carryforwards Tax rate effect of expense not deductible in determining taxable profit (tax loss) Net of non-taxable income and non-deductible expense Tax rate effect of adjustments for current tax of prior periods Changes in unrecognized tax benefits Tax rate effect of foreign tax rates Foreign tax rate differential The tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from effect of variance from audits, amendments and examination of prior years' income tax filings. Tax rate effect resulting from variance from audits amendments and examination of prior years income tax filings Variance from audits, amendments and examinations of prior years' income tax positions Other tax rate effects for reconciliation between accounting profit and tax expense (income) Others Average effective tax rate Total average effective tax rate Tax expense (income) at applicable tax rate Income tax expense calculated at the statutory rate The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to undistributed earnings Tax effect on undistributed earnings Tax on undistributed earnings The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates from setting aside legal reserve from prior year's income. Tax effect resulting from setting aside legal reserve from prior years income Tax benefit resulting from setting aside legal reserve from prior year's income The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates from increase in tax credits. Tax effect resulting from increase in tax credits Increase in tax credits The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates frpm change in unrecognized deductible temporary differences, tax loss carryforwards and investment tax credits. Tax effect resulting from change in unrecognized deductible temporary differences tax loss carryforwards and investment tax credits Effect of change of unrecognized deductible temporary differences, tax losses carryforwards, and investment tax credits The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to expenses not deductible in determining taxable profit (tax loss). [Refer: Accounting profit] Net Tax Effect Of Expense Not Deductible In Determining Taxable Profit Tax Loss Net of non-taxable income and non-deductible expense The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to prior year tax positions, net of tax exempted income impact. Tax effect resulting from change in unrecognized tax benefits related to prior year tax positions net of tax exempted income impact Changes in unrecognized tax benefits related to prior year tax positions Tax effect of foreign tax rates Foreign tax rate differential The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to variance from audits, amendments and examination of prior years' income tax filings. Tax effect resulting from variance from audits amendments and examination of prior years income tax filings Variance from audits, amendments and examinations of prior years' income tax filings Other tax effects for reconciliation between accounting profit and tax expense (income) Others Deferred tax assets Deferred tax assets [Abstract] Deferred tax assets: Amount of deferred tax asset attributable to Inventory. Deferred Tax assets Related To Inventory Inventory Amount of deferred tax asset attributable to operating loss carryforward. Deferred tax assets related to operating loss carryforward Tax credit carryforwards Amount of deferred tax asset attributable to Accrued compensated absences. Deferred tax assets related to accrued compensated absences Accrued compensated absences Amount of deferred tax asset attributable to allowance for sales discounts. Deferred Tax Assets Related To Allowance For Sales Discounts Allowance for sales discounts Amount of deferred tax asset attributable to Depreciation. Deferred tax assets related to Depreciation Depreciation Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. IFRS Deferred Tax Assets, Operating Loss Carryforwards Operating loss carryforwards Amount of deferred tax asset attributable to others. Deferred tax assets related to others Others Deferred tax liabilities. Deferred Tax Liabilities [Abstract]. Deferred tax liabilities: Amount of deferred tax liabilities attributable to Remeasurement of defined benefit plans. Deferred tax liabilities related to Remeasurement of defined benefit plans Remeasurement of defined benefit plans Amount of deferred tax liabilities attributable to Unrealized foreign exchange loss. Deferred tax liabilities related to Unrealized foreign exchange loss Unrealized foreign exchange gain Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. IFRS Deferred Tax Liabilities, Intangible Assets Acquired intangible assets Amount of deferred tax liabilities attributable to others. Deferred tax liabilities related to others Others Temporary difference, unused tax losses and unused tax credits [axis] Temporary difference, unused tax losses and unused tax credits [domain] Inventory n/a Tax credit carryforwards Accrued compensated absences Accrued compensated absences n/a Allowance for sales discount Allowance for sales discounts Depreciation Depreciation1 [Member] Depreciation Unused tax losses [member] Operating loss carryforwards Unrealized foreign exchange loss Remeasurement of defined benefit plans Remeasurement of defined benefit plans n/a Intangible Assets [Member] Acquired intangible assets Others temporary difference [member] Others Deferred tax liability (asset) Ending balance Beginning balance Deferred tax expense (income) recognised in profit or loss Recognized in profit or loss Income tax relating to components of other comprehensive income Recognized in other comprehensive income Unused tax credits Operating loss carryforward statutory tax Unused operating loss carryforwards-statutory tax Unused operating loss carryforwards-undistributed earnings tax Total Deductible temporary differences for which no deferred tax asset is recognised Deductible amount Taiwan operations Taiwan US operations U.S. Maturity [axis] Maturity [domain] Represents information about expiration year 2026 to 2030. Expiration Year 2026 To 2030 [Member] Expiration Year 2026 To 2030 Represents information about expiration year 2031 to 2035. Expiration Year 2031 To 2035 [Member] Expiration Year 2031 To 2035 This member stands for expiration year 2026 to Indefinitely. Expiration 2026 to Indefinitely [Member] Expiration 2026 to Indefinitely Unused tax losses for which no deferred tax asset recognised Unrecognized deferred tax assets Description of expiry date of deductible temporary differences, unused tax losses and unused tax credits Expiration year Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Undistributed Earning of Foreign Subsidiaries Categories of financial assets [axis] Categories of financial assets [domain] Financial assets at fair value through profit or loss, category [member] Financial assets at fair value through profit or loss Financial assets measured at fair value through profit or loss (including current and noncurrent) This member stands for the financial assets at fair value through other comprehensive income category. [Refer: Financial assets at fair value through other comprehensive income] Financial assets at fair value through other comprehensive income [member] Financial assets at fair value through other comprehensive income This member stands for the financial assets at amortised cost category. [Refer: Financial assets at amortised cost] Financial asset at amortised cost, category [member] Financial assets at amortised cost This member cash and cash equivalents. Cash and cash equivalent [Member] Cash and cash equivalents Financial assets at amortised cost, class [member] Financial assets at amortized cost This member stands for the financial assets measured at amortised cost class with Accounts receivable and other receivables. Accounts receivable and other receivables [Member] Accounts receivable and other receivables (including related parties) This member stands for the financial assets measured at amortised cost class with including current and noncurrent. Restricted deposit [Member] Restricted deposit (including current and noncurrent) This member stands for the financial assets measured at amortised cost class with including current and noncurrent. Refundable deposits [Member] Refundable deposits (including current and noncurrent) Financial Assets measured at amortized cost [Abstract] Measured at amortized cost: Financial assets Ending balance Beginning balance Carrying amount Total financial assets Categories of financial liabilities [axis] Categories of financial liabilities [domain] Financial liabilities at amortised cost, category [member] Financial liabilities at amortised cost, category Classes of financial liabilities [axis] Classes of financial liabilities [domain] This member stands for short-term unsecured borrowings. Short Term Unsecured Borrowings [Member] Short-term unsecured borrowings This member stands for short-term secured borrowings. Short Term Secured Borrowings [Member] Short-term secured borrowings This member stands for the financial assets at amortised cost category with including related parties. Accounts payables and other payables [Member] Accounts payables and other payables (including related parties) Lease liabilities [member] Lease liabilities (including current and noncurrent) This member stands for guaranteed deposits. Guarantee deposits [Member] Guarantee deposits Categories of financial liabilities [abstract] Measured at amortized cost: Financial liabilities Total Contractual cash flows Not later than Six months Later than six months and not later than one year Later than one year and not later than two years Later than two years and not later than five years Later than five years Non derivative financial liabilities [Abstract] Non derivative financial liabilities The amount of long-term borrowing, including current portion. Long Term Borrowings Current And Non current Long-term unsecured borrowings (including current portion) Amount Provides Guarantee deposits Guarantee Deposits Guarantee deposits Non-derivative financial liabilities, undiscounted cash flows Total Types of risks [axis] Types of risks [domain] NTD CNY Represents the information about monetary items JPY of credit risk. JPY Financial assets. Financial assets n/a Financial Liabilities [Member] Financial liabilities Net foreign exchange gain Foreign currency Average foreign exchange rate Exchange rate Amount represents the functional currency Functional Currency Functional currency N/A Ifrs Money Market Funds [Member] Money market funds n/a Equity Securities, Listed Company [Member] Equity securities listed company Financial assets at fair value through other comprehensive income, category [member] Financial assets at fair value through other comprehensive income Levels of fair value hierarchy [axis] Levels of fair value hierarchy [domain] Level 1 Level 2 Level 3 Financial assets, at fair value Total The increase in financial assets resulting from business combination. Increase Through Business Combination, Financial Assets Acquisitions through business combinations Increase through origination or purchase, financial assets Addition Decrease through derecognition, financial assets Disposal The decrease in financial assets resulting from capital reduction of investments. Decrease Through Capital Reduction, Financial Assets Capital reduction of investment Reclassification adjustments on financial assets measured at fair value through other comprehensive income, before tax Recognized in other comprehensive income The amount of financial assets reclassified into the at fair value through profit or loss. Recognized In to Financial Assets At Fair Value Through Profit Or Loss Recognized in profit or loss Types of interest rates [axis] Types of interest rates [domain] Floating interest rate Liquidity risk Unobservable inputs [axis] Unobservable inputs [domain] Interest rate, measurement input The percentage of depreciation appreciation against other country currency. Percentage of Depreciation Appreciation Against Other Country Currency Percentage of depreciation appreciation against other country currency Increase (decrease) through foreign exchange, financial assets Borrowings, adjustment to interest rate basis Amount of increase or decrease in net profit through interest expense. Increase Decrease net profit through interest rate Increase or decrease net profit through interest rate The value of significant unobservable input used in the measurement of the fair value of assets. Percentage Of Significant Unobservable Input Assets Significant unobservable input, assets Major customers [axis] Major customers [domain] This member stands for customer A and Its affiliates Customer A and Its affiliates [Member] Customer A and Its affiliates This member stands for Customer C. Customer C [Member] Customer C Percentage of entity's revenue Percentage of entity's revenue It represents to Percentage of trade accounts receivable Percentage Of Accounts Receivables Percentage Of accounts receivable Assets less current liabilities Total liabilities less current assets Categories of related parties [axis] Categories of related parties [domain] This member stands for Cheng Mei Materials Technology Corporation. Cheng Mei Materials Technology Corporation Associates [member] Associates Other related parties Amounts receivable, related party transactions Accounts receivable Purchases of goods, related party transactions Purchase of raw materials The amount of revenue arising from the miscellaneous services in related party transactions. [Refer: Revenue; Related parties [member]] Revenue from Miscellaneous Services, Related Party Transactions Revenue from miscellaneous service The amount of technical service fees arising from the sale of goods in related party transactions. Technical Service Fees, Related Party Transaction Technical service fee The amount of miscellaneous fee arising from the sale of goods in related party transactions. Miscellaneous Fee, Related Party Transactions Miscellaneous fee The amount of other receivables due from related parties. Other Receivables, Due from Related Parties Other receivable Key management personnel compensation, short-term employee benefits Short-term employee benefits Key management personnel compensation, post-employment benefits Post-employment benefits Key management personnel compensation, share-based payment Share-based compensation Key management personnel compensation Total Key management personnel compensation The amount of compensation paid to directors. Key management Personnel Compensation Director na Disclosure Of Pledged Assets [Table] This member stands for a class of plant, property and equipment representing depreciable buildings and improvements for use in operations. Building and improvements [member] Building and improvements Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. Disclosure Of Pledged Assets [Line items] Property, plant and equipment, pledged as security Assets pledged as security Restricted cash and cash equivalents Pledged assets Amount of contract price under long-term contracts or programs. Long Term Contracts Contract Price Long-term contracts, contract price Amount of remaining commitments under long-term contracts or programs. Long Term Contracts Commitments Amount Long-term contracts, commitments amount Transaction price allocated to remaining performance obligations Contractual obligation Represents the amount of obligations expected to be paid. Amount of Obligations Expected To Be Paid in the next 12 months Amount of refundable deposits of the long term contract for purchase agreements with suppliers. Long Term Contract for Purchase Agreements, Refundable Deposit Refundable deposits of the long term contract for purchase agreements with suppliers Disclosure of operating segments [table] Products and services [axis] Products and services [domain] Driver IC [Member] Driver IC Non-driver products [Member] Non-driver products Disclosure of operating segments [line items] Segment, Product and Geographic Information Other operating income (expense) Non operating income, net Significant Noncash Item [Abstract] Significant noncash items: Depreciation and amortisation expense Depreciation and amortization Americas [Member] America MEXICO Mexico Others Others Applications [Axis] Applications [Domain] This member stands for Large-size application . Large-size application [Member] Display drivers for large-sized applications Represents information pertaining to small and medium-sized applications Small And Medium Sized Applications [Member] Display drivers for small and medium-sized applications This member stands for Non-driver products . Non-driver products [Member]. Non-driver products Korea [Member] Korea Segments [axis] Segments [domain] This member stands for driver IC segment. Driver IC Segment [Member] Driver IC Segment This member stands for non-driver products segment Non-driver Products Segment [Member] Non-driver Products Segment Trade receivables Accounts receivable Revenue that was included in contract liability balance at beginning of period Revenue that was included in contract liability balance at beginning of period Income statement [Axis] Income statement [Domain] This member stands for cost of revenues. Cost of Revenues [Member] Cost of Revenues This member stands for operating expenses. Operating Expenses [Member] Operating Expenses The amount of expense arising from labor and health insurance. Labor and Health Insurance Expense Labor and health insurance Post-employment benefit expense, defined benefit plans Pension Other employee expense Others Investments in subsidiaries, joint ventures and associates Investments in subsidiaries and affiliates Current portion of non-current borrowings Current portion of long-term unsecured borrowings Amount of debt borrowings from subsidiary. Debt Borrowings from Subsidiary Debt borrowing from a subsidiary Non-current portion of non-current borrowings Long-term unsecured borrowings Share of profit (loss) of associates accounted for using equity method Share of profits of subsidiaries and affiliates Share of profits of subsidiaries and affiliates Adjustments for decrease (increase) in other current assets Other current assets Adjustments for increase (decrease) in other current liabilities Other current liabilities The amount of cash outflow for purchase of treasury shares. Prepayments For Purchasing Treasury Shares Prepayments for purchase of treasury stock The amount of repayments of long term secured borrowings. Repayments Of Long Term Secured Borrowings Classified As Financing Activities Repayments of long-term unsecured borrowings Proceeds from issuing other equity instruments Proceeds from issue of RSUs from subsidiaries The cash inflow from debt from subsidiary Proceeds from Debt From a subsidiary Proceeds from debt from a subsidiary The cash outflow from debt from subsidiary Repayment of Debt From a subsidiary Repayments of debt from a subsidiary