Patent ID: 7893915
Filing Date: 2011-02-22
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a compensation data generating part for converting a source data signal into a conversion data signal and a compensation data signal, wherein the source data signal includes a red source data signal, a green source data signal and a blue source data signal, wherein the conversion data signal includes a red conversion data signal, a green conversion data signal and a blue conversion data signal, and wherein the compensation data signal includes a yellow data signal, a cyan data signal and a magenta data signal, or a white data signal, a yellow data signal, a cyan data signal and a magenta data signal; and a backlight unit, including a plurality of light sources that include a red light source, a green light source and a blue light source, for performing a single irradiation of one of the plurality of light sources to display the conversion data signal and performing a simultaneous irradiation of at least two of the plurality of light sources to display the compensation data signal, wherein, for converting the source data signal, the compensation data generating part is operative to: detect a first minimum value of the red source data signal, the green source data signal and the blue source data signal; generate a red compensation data signal, a green compensation data signal, and a blue compensation data signal by subtracting the minimum value of the red source data signal, the green source data signal and the blue source data signal from each of the red source data signal, the green source data signal and the blue source data signal, respectively; detect a second minimum value between the red compensation data signal and the green compensation data signal, a third minimum value between the green compensation data signal and the blue compensation data signal, and a fourth minimum value between the red compensation data signal and the blue compensation data signal; and generate a first compensation data signal by adding the first minimum value to the second minimum value, a second compensation data signal by adding the first minimum value to the third minimum value, and a third compensation data signal by adding the first minimum value to the fourth minimum value.