Patent ID: 8810554

Claim:
A display device comprising: a screen unit; a drive unit; and a signal processing unit, wherein the screen unit includes rows of scanning lines, columns of signal lines, matrix-state pixel circuits and a light sensor, the drive unit includes a scanner supplying a control signal to the scanning lines and a driver supplying a video signal to the signal lines, the screen unit is sectioned into regions each having pixel circuits, the drive unit allows different pixel circuits belonging to different regions to simultaneously emit pixel light in accordance with the video signal, the light sensor detects the pixel light and outputs a luminance signal in accordance with the pixel light, and the signal processing unit corrects the video signal in accordance with the luminance signal and supplies a drive signal to the driver, wherein the signal processing unit compares a first luminance signal outputted from the light sensor during a first period with a second luminance signal outputted from the light sensor during a second period that is after the first period, corrects the video signal in accordance with a result of the comparison to generate a corrected video signal, and supplies the drive signal to the driver based on the corrected video signal.