Automotive LED module for intelligent headlight systems

April 15, 2021 // By Rich Pell
Automotive LED module for intelligent headlight systems
Samsung Electronics has announced a new automotive LED module optimized for intelligent headlights, such as adaptive driving beam (ADB) systems.

ADB headlamps powered by the module, called PixCell LED, will help improve driver visibility and safety to enhance the overall driving experience at night and in poor weather conditions such as fog or heavy rain, says the company.

"Much more than a simple automotive lighting source, Samsung’s PixCell LED is based on new lighting technology designed to improve road safety and driving convenience," says Un Soo Kim, senior vice president of the LED Business Team at Samsung Electronics. "Beginning with PixCell LED, we will introduce tailored lighting solutions well-suited for future automobiles, including electric and autonomous vehicles."

ADB is an advanced driver assistance technology designed to help secure maximum driving visibility. In order to prevent glare to other drivers, ADB automatically adjusts headlight beam patterns when it detects any object near a moving vehicle, thereby preventing any unnecessary glare. Recent developments in future automotive technologies, such as autonomous and connected driving, have been raising the bar for vehicle safety standards and ultimately boosting demand for ADB systems, says the company.

The new PixCell LED can monolithically integrate more than 100 ultra-small segments into a single LED chip, while making the light-emitting area significantly smaller. These LED segments are separated by a silicon wall to prevent optical crosstalk, and in turn, offer superior contrast for greater driver visibility. Each segment functions like a pixel to meticulously control light distribution, as it distinguishes on and off areas so that the beam from the headlight only illuminates the exact location where it is needed.

With the light-emitting area shrunk to 1/16 of conventional discrete LED modules for ADB systems, says the company, the PixCell LED can reduce the headlamp size by 30% to 50%, allowing greater freedom in designing sleeker and more elegant lamps. The light distribution and brightness levels of the PixCell LED are designed using automotive lighting software, making them easily adjustable to meet diverse regulations and requirements for automotive lamps


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