DISPLAY DEVICE AND DRIVE METHOD FOR SAME

摘要

In a display device having a pixel circuit 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, a drive method therefor includes: a noise measurement step of measuring noise; characteristic detection steps of detecting characteristics of the drive transistor and the electro-optical element; a correction data update step of updating correction data, which serves for correcting a video signal, based on detection results in the characteristic detection step; and a video signal correction step of correcting the video signal based on the correction data. When noise with a standard value or more is detected in the noise measurement step, processing of the correction data update step is not performed.

主权项

1. A drive method for 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 drive method comprising:
a noise measurement step of measuring noise; a characteristic detection step of detecting at least either one of characteristics of the drive transistor and characteristics of the electro-optical element; a correction data update step of updating correction data, which is stored in a correction data storage unit provided in the display device, based on a detection result in the characteristic detection step; and a video signal correction step of correcting a 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, wherein, when noise with a standard value or more is detected in the noise measurement step, processing of the characteristic detection step immediately after a point of time when the noise is detected is not performed, or processing of the correction data update step, that is based on a detection result in the characteristic detection step performed at a point of time close to the point of time when the noise is detected, is not performed.