Patent ID: 9697769
Date: 2017-07-04
CPC Classifications: G09G

Claim:
1. A display device having a pixel matrix of n rows and m columns (n and m are integers of 2 or more), which is composed of n×m pieces of pixel circuits each including an electro-optical element in which brightness is controlled by a current and including a drive transistor for controlling a current to be supplied to the electro-optical element, the display device comprising: a pixel circuit drive unit configured to drive the n×m pieces of pixel circuits while performing characteristic detection processing for detecting at least either one of characteristics of the drive transistor and characteristics of the electro-optical element; a correction data storage unit configured to store correction data for correcting a video signal; a control unit configured to control operations of the pixel circuit drive unit while performing correction data update processing for updating the correction data, which is stored in the correction data storage unit, based on a detection result in the characteristic detection processing, and video signal correction processing for correcting the video signal, which is to be supplied to the n×m pieces of pixel circuits, based on the correction data stored in the correction data storage unit; and a noise measurement unit configured to measure noise, wherein, when noise with a standard value or more is detected by the noise measurement unit, the control unit controls operations of the pixel circuit drive unit so that the characteristic detection processing immediately after a point of time when the noise is detected is not performed, or the control unit does not perform the correction data update processing that is based on a detection result in the characteristic detection processing performed at a point of time close to the point of time when the noise is detected.