Patent ID: 8552967
Filing Date: 2013-10-08
Classification: G01J,G02F,G06F,G09G

Abstract:
1. A display device comprising: a detection element that detects an amount of ambient light of a display area; a comparator that compares an output of the detection element with a first predetermined reference value; and a controller configured to control an amount of light supplied to the display area depending on a comparison result by the comparator, wherein a switch connected to a first metal that exists near a light-receiving part of the detection element outside the display area with an intermediary of an insulating film, the switch controlling an application of a precharge potential to the metal to form a parasitic capacitance between the first metal and the light-receiving part of the detection element, and to render a potential of the first metal a floating state; and a dark current detection element including a black color filter and configured to detect a dark current; and a second switch connected to a second metal that exists near the dark current detection element, wherein the comparator compares an output of the dark current detection element with a second predetermined reference value.