Patent ID: 8872862
Filing Date: 2014-10-28
Classification: G09G

Abstract:
1. An image display device that performs signal processing on a video signal and thereby displays an image, the image display device comprising: a display panel; a first storage unit that stores, when a gradation value of a pixel included in an input video signal has been changed from a previous frame, a gradation value before change, for each pixel; a hold count calculation unit that determines, for each pixel, a hold count indicating a number of frames inputted after a change of a gradation value; a second storage unit that stores the hold counts determined by the hold count calculation unit; an emphasis conversion unit that obtains an emphasis video signal based on the input video signal, the gradation values before change which are stored in the first storage unit, and the hold counts determined by the hold count calculation unit, the emphasis video signal compensating for optical response characteristics of the display panel; and a drive unit that drives the display panel based on the emphasis video signal.