Patent ID: 8564580
Filing Date: 2013-10-22
Classification: G02F

Abstract:
1. A display device comprising: a plurality of display cells are arranged in an effective display area unit; a first light sensor unit configured to include a light-receiving element and detect intensity of ambient light to a display area; and a second light sensor unit configured to include a light-receiving element and be provided with an infrared filter disposed on an optical path to the light-receiving element, wherein the first light sensor unit and the second light sensor unit with the infrared filter are formed in the effective display area unit, wherein a signal processor configured to subtract a detection signal of the second light sensor unit from a detection signal of the first light sensor unit, wherein the infrared filter is formed by stacking at least two kinds of color filters, and wherein a first aperture for guiding light to the light-receiving element for the first light sensor unit is formed in a first light-blocking mask, a second aperture for guiding light to the light-receiving element for the second light sensor unit is formed in a second light-blocking mask, the infrared filter is formed in the aperture, and the first and second light-blocking masks are formed between adjacent display cells in the effective display area unit.