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Material accounting policies (Details) |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 22, 2024 | Dec. 30, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Viewsil Microelectronics (Kunshan) Limited |  |  |  |
Statement [line items] |  |  |  |
Proportion of voting rights held in associate | 51.00% | 49.00% |  |
Himax Technologies Limited Himax Taiwan | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Himax Technologies Limited (“Himax Taiwan”) |
Main activities |  |  | IC design and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Technologies Korea Ltd | Korea |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Himax Technologies Korea Ltd. |
Main activities |  |  | IC design and sales |
Jurisdiction of Incorporation |  |  | South Korea |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Technologies Japan Ltd | Japan |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Himax Technologies Japan Ltd. |
Main activities |  |  | Sales |
Jurisdiction of Incorporation |  |  | Japan |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Semiconductor Hong Kong Limited | Hong Kong operations |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Himax Semiconductor (Hong Kong) Limited |
Main activities |  |  | Investments |
Jurisdiction of Incorporation |  |  | Hong Kong |
Percentage of Ownership |  |  | 100.00% | 100.00%
Viewsil Microelectronics Kunshan Limited Viewsil | PRC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Viewsil Microelectronics (Kunshan) Limited (“Viewsil”) (1) |
Main activities |  |  | IC design and sales |
Jurisdiction of Incorporation |  |  | PRC |
Percentage of Ownership |  |  | 100.00% | 49.00%
Viewsil Technology Limited |  |  |  |
Statement [line items] |  |  |  |
Percentage of Ownership | 100.00% |  |  |
Viewsil Technology Limited | British Virgin Islands |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Viewsil Microelectronics (Kunshan) Limited |
Subsidiary |  |  | Viewsil Technology Limited (1) |
Main activities |  |  | IC sales |
Jurisdiction of Incorporation |  |  | British Virgin Islands |
Percentage of Ownership |  |  | 100.00% | 49.00%
Himax Technologies Samoa Inc | Samoa |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Himax Technologies (Samoa), Inc. |
Main activities |  |  | Investments |
Jurisdiction of Incorporation |  |  | Samoa |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Technologies Suzhou Co Ltd | PRC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies (Samoa), Inc. |
Subsidiary |  |  | Himax Technologies (Suzhou) Co., Ltd. |
Main activities |  |  | Sales and technical support |
Jurisdiction of Incorporation |  |  | PRC |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Technologies Shenzhen Co Ltd | PRC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies (Samoa), Inc. |
Subsidiary |  |  | Himax Technologies (Shenzhen) Co., Ltd.(1) |
Main activities |  |  | Sales and technical support |
Jurisdiction of Incorporation |  |  | PRC |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Display Inc | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Himax Display, Inc. |
Main activities |  |  | LCoS and MEMS design, manufacturing and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 92.02% | 92.08%
Integrated Microdisplays Limited | Hong Kong operations |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Display, Inc. |
Subsidiary |  |  | Integrated Microdisplays Limited |
Main activities |  |  | LCoS design |
Jurisdiction of Incorporation |  |  | Hong Kong |
Percentage of Ownership |  |  | 92.02% | 92.08%
Himax Display (USA) Inc. | Delaware USA |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Display, Inc. |
Subsidiary |  |  | Himax Display (USA) Inc. |
Main activities |  |  | LCoS and MEMS design, sales and technical support |
Jurisdiction of Incorporation |  |  | Delaware, USA |
Percentage of Ownership |  |  | 92.02% | 92.08%
Himax Analogic Inc | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Himax Analogic, Inc. |
Main activities |  |  | IC design and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 98.62% | 98.62%
Himax Imaging Inc | Cayman Islands |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies, Inc. |
Subsidiary |  |  | Himax Imaging, Inc. |
Main activities |  |  | Investments |
Jurisdiction of Incorporation |  |  | Cayman Islands |
Percentage of Ownership |  |  | 100.00% | 100.00%
Himax Imaging Ltd Imaging Taiwan | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Himax Imaging, Ltd. (“Imaging Taiwan”) |
Main activities |  |  | IC design and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 98.64% | 98.43%
Himax Imaging Corp | California USA |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Imaging, Ltd. |
Subsidiary |  |  | Himax Imaging Corp. |
Main activities |  |  | IC design |
Jurisdiction of Incorporation |  |  | California, USA |
Percentage of Ownership |  |  | 98.64% | 98.43%
Harvest Investment Limited | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Harvest Investment Limited |
Main activities |  |  | Investments |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 100.00% | 100.00%
Liqxtal Technology Inc | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Liqxtal Technology Inc. |
Main activities |  |  | LC Lens design and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 62.26% | 62.26%
Himax IGI Precision Ltd | Delaware USA |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Himax IGI Precision Ltd. |
Main activities |  |  | 3D micro and nano structure mastering and prototype replication |
Jurisdiction of Incorporation |  |  | Delaware, USA |
Percentage of Ownership |  |  | 100.00% | 100.00%
CM Visual Technology Corp | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | CM Visual Technology Corp. |
Main activities |  |  | Omniwide film products design and sales |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 77.63% | 77.63%
Solvanta Investment Limited | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Himax Technologies Limited |
Subsidiary |  |  | Solvanta Investment Limited |
Main activities |  |  | Investments |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 100.00% |
Solvanta Energy Limited | ROC |  |  |  |
Statement [line items] |  |  |  |
Investor |  |  | Solvanta Investment Limited |
Subsidiary |  |  | Solvanta Energy Limited |
Main activities |  |  | Renewable-energy based electricity distribution |
Jurisdiction of Incorporation |  |  | ROC |
Percentage of Ownership |  |  | 100.00% |

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