Matrix type automobile headlamp lighting: LCD MicroLED or tiny, the future will have the opportunity to mirror

In 2013, Audi A8 car headlight beam matrix for the automotive industry by surprise. A8 was first equipped with matrix LED headlamps models. Matrix LED headlamps with 25 LED lights, each LED lamp body can be independently adjust the brightness or off, can automatically adjust the distance from. At the same time, steering, servo A8 with adaptive beam, the pedestrian reminded many features greatly improve the safety of night driving.

So imagine if you can produce a high beam lights up to 50000 pixels, each pixel can be opened or closed, then the industry will bring about change?

The results may be the high beam light is not the same, can come to oncoming drivers, pedestrians and cyclists to eliminate glare. Theoretically, the beam will be very accurate, the information can be projected onto the road ahead, to remind others. Such information can be said is "right" and "left" or "stop" icon.

For the production of the Audi A8 headlamps supplier Hella and OSRAM and Daimler have jointly developed this kind of lighting system.

Hella KGaA HueckCo. automotive lighting global marketing director Steffen Pietzonka said: "we called HD headlights, just like the TV set. Have endless opportunities."

Like other auto parts, the headlight has been transformed by computer chip. Other such components include seat, automatic control and intelligent radio call. The seat will soon be out of position and shape recognition driver driver; automatic control is becoming a self driving control system; intelligent radio call, is learning how to analyze the news, music or talk.

High resolution headlights will be from as many as 25 LED light emitting light, the LED light irradiation to the LCD screen. The screen is made up of thousands of pixels in turn control separately, can be composed of numerous combinations of switches.

If a sensor camera photographed in front of an oncoming car, car computer will shut down any license issued in front of face. Pietzonka said, this is basically the principle of matrix beam headlamps, but must be light more accurate.

Of course, there are technical barriers. The liquid crystal display flashes up at low temperature is more slowly, if an oncoming car suddenly appeared in the cold night, there will be a problem.

Researchers must also figure out how to reduce the LCD installed in the headlights. Researchers must also prove that LCD headlamp can withstand vibration and other environmental hazards.

In view of these uncertainties, which several manufacturers are working on other technology. One possibility is micro-LED, researchers can be hundreds of LED chip into the headlight. The other is a headlamp reflector composed of thousands of small mirrors, each mirror can control.

Julian Dench warned OSRAM global Solid State Lighting Department said, "using LCD micro-LED or tiny mirror, the technology is still in development. It is not clear which is the dominant technology, each technology will bring challenges."

Although researchers are still studying the next generation technology, but the traditional matrix type headlamp development. After making his debut in the Audi A8, BMW 3 series and the Mercedes E class cars are equipped with matrix type headlamp.

So even if the new technology needs another ten years to develop, auto dimming headlights still unlimited prospects. (compiled: LED James)

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