Patent ID: 7825893

Claim:
A liquid crystal display, comprising: a liquid crystal display portion, which is configured to input a video signal to display an image thereon; a backlight, which is provided on a rear side of said liquid crystal display portion, and is configured to illuminates said liquid crystal display portion from a rear surface thereof; a backlight driver portion, which is configured to drive said backlight, and also to have a light control function for controlling a light intensity of the illuminating lights from said backlight; a feature detector portion, which is configured to detect an averaged brightness of said video signal and also a histogram of brightness or a color, upon basis of said video signal inputted; and a light intensity control portion, which is configured to control the light intensity of the illuminating lights from said backlight, through the light control function of said backlight driver portion, upon basis of said histogram of brightness or color and also said averaged brightness of said video signal detected by said feature detector portion, wherein said light intensity control portion classifies said histogram of brightness into, at least, three stages, a low brightness region, a middle brightness region and a high brightness region, and classifies a level of said average brightness into, at least three stages, low average brightness, middle average brightness and high average brightness, and in a case that a level of said average brightness level detected by said feature detector portion is middle average brightness, and when a degree of said histogram of brightness on a high brightness region is higher than a first threshold value, said light intensity control portion decreases light intensity of said backlight, as a degree of said high brightness region increases.