EXHIBIT 99.1 Himax Technologies, Inc. Reports Fourth Quarter and Full Year 2023 Financial Results; Provides First Quarter 2024 Guidance Q4 2023 Revenues and EPS Both Beat Guidance, Gross Margin In-Line Guidance Range Issued on November 9, 2023 Company Q1 2024 Guidance: Revenues to Decline 9% to 16% QoQ, Gross Margin is Expected to be around 28.5%, Profit per diluted ADS to be around 2.0 Cents to 5.0 Cents Q4 2023 revenues were $227.7M, a decrease of 4.5% QoQ, exceeding the guidance range of a 5.0% to 11.0% ...