Patent ID: 8203515

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 a source light luminance of a light source, comprising: an image processing engine including a scene change detection section that detects a change of scene of the input image data; an image correction section that corrects the image data; a source light luminance control section that controls the source light luminance; and a time characteristic control section that changes a first time characteristic of a change in the source light luminance and a second time characteristic of an image correction amount by which both image data correction and change in source light luminance are directly based on the change of scene, the first and second time characteristics each being proportional to the change of scene, and that executes a process on the basis of the first time characteristic and the second time characteristic, wherein the first and second time characteristics are calculated independently from each other, the time characteristic control section executes filtering on the source light luminance for each frame using the first time characteristic as a filter coefficient and executes filtering on the image correction amount for each frame using the second time characteristic as a filter coefficient, and the time characteristic control section executes filtering on the source light luminance for each frame on the basis of the first time characteristic, calculates an image correction amount for each frame using the source light luminance that is filtered on the basis of the first time characteristic, and executes filtering on the calculated image correction amount on the basis of the second time characteristic.