OPTICAL INPUT DEVICE, DISPLAY DEVICE, AND LIGHT EMITTING PEN

摘要

PROBLEM TO BE SOLVED: To provide an optical input device capable of inputting information from a screen using light even if the surface of the screen is covered with a protective resin layer.

SOLUTION: A plurality of optical sensor elements 41 are regularly arranged on the transparent base 100 of a device for optical input. The optical sensor elements 41 each have a color filter 410 with a regularly different transmission spectrum. A light source apparatus 460 enables the spectra of the light emitted to be changed into the same spectra as the transmission spectra of the color filters 410. Thus, even if the screen of the device for optical input is protected by a protective resin layer 181, the optical sensor elements 41 make it possible to recognize the strength, color, and position of the light emitted by the light source apparatus 460.

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