Patent ID: 7990352

Claim:
A liquid crystal display device comprising: at least three groups of colored light sources as backlighting, the colored light sources maintaining a relative power ratio to keep a color balance according to a colorimetry system, and only one of the three groups of colored light sources being turned on at a time in accordance with a display signal, wherein measurement signals for the backlighting are taken; a controller, receiving the measurement signals, configured to determine what necessary adjustments are needed to keep or modify the relative power ratio to keep the color balance in the backlighting; and a liquid crystal display panel including a plurality of pixels, each being represented by a liquid crystal, each of the pixels including no further subpixels and reproducing a perceived color by turning on the corresponding liquid crystal to a certain degree to pass a percentage of each of the three colored lights successively in accordance with the display signal that is supposed to be displayed on the liquid crystal display panel.