Himax Unveils Industry-Leading eDP TDDI, Advancing Automotive Display Technology

Single-Chip Solution Integrates High-Speed eDP Interface, Touch, and Display Driver For Large-Format, High-Resolution Smart Car Displays

Himax Technologies, Inc., a leading supplier and fabless manufacturer of display drivers and other semiconductor products, announced the unveiling of the industry-leading automotive TDDI (Touch and Display Driver Integration) with high-speed eDP interface support, the HX83196/HX83197 series. The new solution integrates a high-speed eDP interface, touch, and display driver into a single chip, addressing the demands of next-generation smart car displays for large-format, high-resolution, high-quality displays and responsive touch performance.

Himax’s new eDP TDDI adopts the latest eSRE (eDP Stream Regeneration Engine) technology, integrating TDDI with eDP transmission and reception functions into a single chip. It can directly receive and transmit high-bandwidth eDP signals, enabling cascaded configuration. Customers can flexibly adopt either a single-chip or two-chip cascaded design, depending on panel size and resolution requirements. The HX83197 further incorporates Himax’s industry-leading local dimming technology into the TDDI, eliminating the need for an additional Tcon while enhancing contrast and detail in bright and dark areas, with improved cost efficiency. The newly introduced eDP TDDI is currently in the design-in stage with multiple panel makers and will be showcased at the upcoming SID Vehicle Displays and Interfaces Symposium in Detroit, U.S.

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The new eDP TDDI features the following advanced capabilities:

• Flexible Cascading for Large-Format, High-Resolution Displays: The automotive display system requires only one eDP output interface to cascade two eDP TDDIs. A single eDP TDDI supports displays up to 17 inches with 3K resolution, while a two-chip cascaded configuration supports displays up to 30 inches with 6K resolution
• High-Resolution Touch Display with Smooth Visual Performance: Features 2,560 source channels and 1,280 touch channels, supporting 60Hz and 90Hz refresh rates, for large-format, high-resolution touch displays and smooth visual performance
• High Integration for Simplified System Architecture and Improved Cost Efficiency: Integrating an eDP 1.2 interface eliminates the need for the eDP-to-OLDI bridge IC required in conventional automotive display architectures. For single-display applications, it also supports a Direct DP architecture, allowing the SoC to transmit eDP signals directly to the eDP TDDI over a single cable without an additional SerDes, further simplifying system architecture and reducing cost
• Enhanced Data Transmission Efficiency and High-Quality Display: Integrates eDP 1.4 DSC (Display Stream Compression) technology to reduce the bit rate and power consumption associated with high-resolution image transmission, while helping mitigate electromagnetic interference (EMI). Support for HDR10+ enhances contrast and detail across bright and dark areas for more natural and refined image quality
• ALS-on-Panel Architecture for Simplified Display Design: Supports an interface for an on-panel Ambient Light Sensor (ALS), allowing the ALS to be placed directly on the panel without occupying display bezel space, for a cleaner, more streamlined display design

“Himax has been deeply engaged in the automotive display IC market for nearly two decades, establishing a leading position across multiple technologies while building one of the industry’s most comprehensive automotive display IC portfolios. As the market trends toward larger, higher-resolution displays and increasingly diverse display configurations in smart car interiors, we continue to develop and introduce innovative technologies and products to give customers more options tailored to their needs. Our new eDP TDDI is one such example, supporting large-format, high-resolution automotive displays with advanced touch functionality while simplifying display design and reducing cost. Multiple customer projects are already underway,” said Ming-Cheng Chiu, Executive Vice President of Touch and Display Business Unit at Himax.

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