Patent ID: 8743101

Claim:
A display device comprising: a display panel that displays an image; and a light sensor provided outside a screen of the display panel so as not to cover the screen, wherein: the light sensor is provided at a position allowing outgoing light from the screen of the display panel and extraneous light reflected on the screen to enter the light sensor, and the display device further comprises either of the features (1) or (2) below: (1) the light sensor is provided to directly receive the outgoing light from the screen and the extraneous light reflected on the screen; or (2) the display device further comprises light guiding means for guiding, to the light sensor, the outgoing light from the screen and the light reflected on the screen, and wherein the light guiding means is provided outside the screen of the display panel so as not to cover the screen, wherein the display device is configured to execute a correcting process so as to cancel a difference of display characteristics between ideal characteristics of the display device and a sum of the outgoing light and the extraneous light reflected on the screen.