Patent ID: 7973753

Claim:
An image display device that corrects image data, which are used for displaying an image, using a gray scale value assigned to each pixel and that also controls an amount of source light emitted from a light source, comprising: a source light amount control device that determines the amount of source light and then controls the amount of source light; and an image correction device that calculates a saturation correction amount and corrects a signal used for changing saturations of the image data based on the saturation correction amount, so as to reduce a change in the saturations due to a change in the amount of source light, the change in the amount of source light being performed by the light source amount control device, wherein the image correction device corrects the signal so that an average value of saturations of image data, in which a signal for changing saturations has been corrected and the source light amount control device has controlled to change the amount of source light, is substantially equal to an average value of saturations of image data that have been corrected from image data, in which a signal for changing saturations has not been corrected, so that the saturations are approximated to a predetermined saturation reference.