| 摘要 |
A light-emitting device includes a plurality of light-emitting elements, particularly three light-emitting diodes and one phototransistor, and acquires excellent white color characteristics. A plurality of light-emitting elements and one light-detecting element are provided onto a substrate. Particularly, one each light-emitting elements for emitting each of first, second and third color is provided and one light-detecting element detects light emitted from each of the light-emitting elements.
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