Patent ID: 7956821

Claim:
A liquid crystal display (LCD) system comprising: a LCD unit displaying a color image and including a plurality (n) of LCD panels stacked one on another; and an image-data processing unit for generating image data based on input data to drive said LCD unit, said plurality of LCD panels including: a first LCD panel including a color filter layer; and a second LCD panel including no color filter layer, said image-data processing unit including: a monochrome-image generation section for generating monochrome image data based on said input image data to output said monochrome image data to said second LCD panel, said monochrome image data specifying a full transmission for a first pixel having a luminance or chromaticness which is not less than a threshold, and specifying a first gray-scale level for a second pixel having a luminance or chromaticness which is less than said threshold, said first gray-scale level corresponding to an original gray-scale level of said second pixel specified in said input image data; and a color-image generation section for generating color image data based on said input image data and said monochrome image data to output said color image data to said first LCD panel.