Patent ID: 8405674

Claim:
A color calibration system, comprising: a display device provided with a color sensor for detecting a color temperature and illuminance of ambient light; a microcomputer; a colorimeter for performing colorimetry on a display screen of said display device from outside the display device: a control unit: a first temperature sensor provided at a first location of said display device: and a second temperature sensor provided at a second location where the temperature is higher than that of said first location during operation, wherein said microcomputer calculates a target value by using a preset calculation equation and a detection result on said ambient light detected by said color sensor, and said control unit determines whether or not to automatically perform color calibration of said display device so that a colorimetry result obtained by said colorimeter agrees with said target value on the basis of a time variation of a differential value between a detection result obtained by said first sensor and a detection result obtained by said second temperature sensor and a preset threshold value.