Patent ID: 8772699
Filing Date: 2014-07-08
Classification: G02F,G06F,G09G

Abstract:
1. A display device comprising a photosensor in a pixel region of an active matrix substrate, the photosensor comprising: a photodetection element that receives incident light; reset signal wiring that supplies a reset signal to the photosensor; readout signal wiring that supplies a readout signal to the photosensor; a storage node whose potential changes in accordance with the amount of light received by the photodetection element in a sensing period, the sensing period being from when the reset signal is supplied until when the readout signal is supplied; an amplification element that amplifies the potential of the storage node in accordance with the readout signal; and a sensor switching element for reading out the potential amplified by the amplification element to output wiring as sensor circuit output, wherein the amplification element is a diode including a gate electrode over a channel.