Massachusetts-based Analog Devices (ADI) has revealed that AUO will use ADI’s matrix LED display driver technology in its leading automotive widescreen display range. The technology enables local dimming which improves power consumption by a minimum of 50%.
As vehicle interiors develop, automotive displays are requiring more automation and autonomy, pushing the requirements of currently available products. Additionally, as the number of electric vehicles on the road grows, power consumption is another factor which needs to be considered and managed accordingly.
To ensure these growing requirements can be met, ADI developed local dimming which drives LEDs behind the screen on an interior display. Designed using the company’s own power process technology, the driver integrates all external switching positive channel field effect transistors (PFETs). This enables high resolution and high contrast ratio for large automotive displays in addition to delivering improved diagnostics of LEDs and a reduction in ghost images.
The system is stated to reduce power consumption by at least 50% compared to conventionally used edge-lit displays. ADI’s power portfolio is ASIL-B to D rated, ensuring the reliable operation of functional safety features within a vehicle.
To enhance in-cabin experiences for occupants, ADI seeks to enable energy-efficient widescreens which can be locally dimmed using proprietary power management and processing solutions. Furthermore, the company aims to deliver high resolution screens through Gigabit Multimedia Serial Link serializer and deserializer connectivity solutions.
“To help us maintain our leadership position in the market as one of the world’s top automotive display manufacturers catering to some of the largest OEMs, ADI’s local dimming automotive display drivers deliver the power efficiency consistent with the quality standard of the AUO brand,” said Simon Hsu, head of the automotive business unit, AUO.
“AUO AmLED displays feature power savings, excellent sunlight readability and high contrast ratio, which greatly upgrade driving safety and in-cabin entertainment experience. In response to the trend of smart mobility, AUO continues to advance display technology and we look forward to further collaborations with the ADI team.”
“The future of the automotive experience is to bring consumer features into the vehicle,” added Patrick Morgan, corporate vice president of automotive electrification and sustainable energy, Analog Devices. “Through this collaboration, our technology and leadership for high performance automotive power enables bringing the next wave of widescreen displays into the market with significantly improved power consumption and full functional safety capabilities.”
AUO uses the MAX25500 4×24 automotive LED matrix driver for its local-dimming automotive displays.