Patent ID: 7643095
Filing Date: 2010-01-05
Classification: G09G,H04N

Abstract:
1. An image display device switchable between a mode of displaying a television image and a mode of displaying a graphic user interface image based on a screen switch command from a user, wherein the image display device comprises a controller which carries out variable control of a screen luminance in response to the mode switching, and the image display device lowers the screen luminance when the mode of displaying the graphic user interface image is selected than the screen luminance when the mode of displaying a television image is selected, wherein the controller slows a rate of change in the screen luminance at the moment of switching from the mode of displaying the television image to the mode of displaying the graphic user interface image than a rate of change in the screen luminance at the moment of switching from the mode of displaying the graphic user interface image to the mode of displaying the television image.