Patent ID: 7227559
Filing Date: 2007-06-05
Classification: G09G

Abstract:
1. An image display device using a fixed pixel device that displays an image based on a video signal, said image display device comprising: a detector which detects luminance information about an average brightness level of said video signal; a first processor which performs a black correction to said video signal by using said luminance information detected by said detector; and a controller which controls a contrast of said video signal to increase within a quantity of said black correction to said video signal greater than or equal to a given value; wherein said first processor does not perform a black correction under control of said controller when said luminance information is within a range of an average brightness level less than the given value, and a contrast of said video signal increases under control of said controller corresponding to a quantity of said black correction to said video signal performed by said first processor when said luminance information is within a range of an average brightness level greater than or equal to the given value.