Patent ID: 7580023

Claim:
A liquid crystal display (LCD) comprising: a backlight, the backlight containing at least three colors of light emitting diodes (LEDs), the LEDs comprising one or more first color LEDs, one or more second color LEDs, and one or more third color LEDs; a liquid crystal (LC) layer, the LC layer controlling passing of light from the backlight to an output of the LCD by controlling the passing of light through subpixels; a color filter, the filter having subpixel areas, the subpixel areas comprising first subpixel areas for passing light of mainly the first color, second subpixel areas for passing light of mainly the second color, and third subpixel areas for passing all light generated by the backlight, each single pixel in the LCD consisting of a group of only a single first subpixel area, a single second subpixel area, and a single third subpixel area, each single pixel generating a color that is a combination of light from the single first subpixel area, the single second subpixel area, and the single third subpixel area; and a first controller for illuminating only the third color LEDs in the backlight for a first time period, and illuminating all the LEDs in the backlight for a second time period.