Optoelectronic device and adaptive illumination system using the same

A method for communicating between automotive vehicles, the method comprising:

• illuminating a portion of a road ahead of a vehicle with a segmented light-emitting diode (LED) chip in a headlight, the segmented LED chip including a plurality of LEDs, the LEDs in the plurality being arranged in a plurality of sections, each section including at least one first LED and at least one second LED;
• and
• exchanging communications with an oncoming vehicle via light transmission from at least one of the first LEDs and light detection through at least one of the second LEDs, the exchanged communications including a determination of which of the vehicle or the oncoming vehicle is to perform a function including at least one function selected from a group of functions that include:
• switching off at least one headlight of the vehicle or the oncoming vehicle and dimming the at least one headlight of the vehicle or the oncoming vehicle.

A method for communicating between automotive vehicles, the method comprising:

• illuminating, with a headlight, a portion of a road ahead of a vehicle having an automotive communication system;
• exchanging communications with an oncoming vehicle via light transmission and detection through the headlight,
• determining, via the exchanged communications, which vehicle is to perform a function including at least one function selected from:
• switching off its headlights and dimming its headlights, the headlight including a segmented LED chip including a plurality of LEDs that are separated by trenches formed on the segmented LED chip, the LEDs in the plurality being arranged in a plurality of sections, each section including at least one first LED and at least one second LED configured to function as a detector;
• applying a forward bias to the first LEDs such that the first LEDs function as emitters to provide the exchanged communications;
• and
• applying a reverse bias to the second LEDs such that the second LEDs function as detectors to receive the exchanged communications.