LIGHT-EMITTING DEVICE, AND DRIVING METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a control system capable of correcting color and brightness uniformity of a light-emitting device incorporating a plurality of light-emitting elements.

SOLUTION: Light emitted by the plurality of light-emitting elements is transmitted into a light guide 104. The light guide 104 internally reflects and/or diffuses light emitted by the plurality of light-emitting elements. A reflector 102 is disposed on a rear surface of the light guide 104 and has a reflective surface configured to reflect light. The reflective surface of the reflector 102 may be configured to reflect light emitted by the plurality of light-emitted elements. The reflector 102 is disposed on side surfaces of the light guide 104 for reflecting light. A light diffuser 106 is disposed on a front surface of the light guide 104 and diffuses light transmitted through the front surface of the light guide 104, thereby increasing the uniformity of light emitted by the light-emitting device 100. The light emitted by the light-emitting elements is diffused or mixed within the light guide 104 and/or the light diffuser 106 referred to as a light-mixing region 100a of the light-emitting device 100, and the light-mixing region 100a is configured to receive light emitted by the plurality of light-emitting elements.

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