Patent ID: 8026926

Claim:
An image display device for displaying an input image, comprising: a normalization value calculator for obtaining, from the input image, a normalization value for normalization by saturating the input image, wherein the normalization value calculator comprises: a counter for counting the input image to generate a frequency distribution; an accumulator for accumulating the frequency distribution to obtain a saturation amount; and determination means for determining the normalization value so as to hold the saturation amount within an allowable range; a normalizer for normalizing the input image by the normalization value; a light adjuster for adjusting an intensity of light for displaying based on the normalization value so as to compensate a change in brightness of an image obtained by the normalizer; and a light modulation display for modulating the light from the light adjuster based on changing one of transmittance and reflectance, to display the image sent from the normalizer.