| 摘要 |
The present invention provides an optical display device, including a light emitting portion, a light guiding plate, and a light detecting sensor. The light detecting sensor is mounted on a wiring board having the at least two or more illuminants mounted thereon so as to be disposed to face the light incidence portion of the light guiding plate, so that the light detecting sensor is disposed on the same side as that of the at least two or more illuminants with respect to the light guiding plate.
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