Patent Number: 7,133,049

Title: Apparatus and method for driving liquid crystal display device

Abstract: A display device includes a display panel having a plurality of pixels, each pixel including R, G B and W sub-pixels; a color information detecting unit receiving R, G and B sub-pixel video data for each pixel and outputting a detecting signal when one or two of the R, G and B sub-pixel video data are null; a color component determining unit receiving the detecting signals for the entire pixels, operating the detecting signals, comparing the operated detecting signals with at least one reference value, and outputting a control singal; and a light source control unit controlling an amount of a light source according to the control signal.

Inventors: Lee; Han Sang (Uiwang-Si, KR), Lee; Myung Ho (Uiwang-Si, KR)

Assignee: LG.Philips LCD Co., Ltd.

International Classification: G09G 5/00 (20060101); G09G 5/10 (20060101); H04N 5/66 (20060101); H04N 9/64 (20060101); G09G 5/30 (20060101); H04N 9/31 (20060101)

Expiration Date: 2019-11-07 0:00:00