Patent ID: 8035607

Claim:
An image display apparatus comprising: a processor; a display device operatively coupled to the processor; a frame memory; and a memory device storing instructions which when executed by the processor, cause the processor, in cooperation with the display device and the memory device, to: (a) cause the frame memory to store inputted image data which includes frame images which include pixels having gradation values, the frame images including a first frame image; (b) calculate a statistical computation result by performing statistical computation on a gradation value of each pixel based on the image data for each frame image; (c) using the calculated statistical computation result, correct the image data stored in the frame memory on a frame-by-frame basis; (d) using the corrected image data: (i) perform image display; (ii) calculate a control amount applied to an amount of light emitted from a light source; (e) using the calculated control amount, control the amount of light emitted from the light source; (f) determine whether the first frame image constitutes a still picture or not; and (g) in response to the determination being that the first frame image constitutes the still picture, suspend the statistical computation until the first frame image is updated.