Patent ID: 7692674
Filing Date: 2010-04-06
Classification: G02F,G09G

Abstract:
1. A liquid crystal display comprising: a liquid crystal sealed between a pair of substrates provided opposite to each other; a plurality of pixels provided in a form of a matrix on either of the pair of substrates; a thin film transistor formed at each of the pixels; an image processing unit for determining a high luminance of the pixel in a high-luminance frame and a low luminance of the pixel in a low-luminance frame and the ratio of presence between the high-luminance frame and the low-luminance frame to achieve luminance substantially equal to predetermined luminance by combining the high-luminance frame which drives the pixel to luminance higher than the predetermined luminance that is associated with a gradation value in input image data and the low-luminance frame which drives the pixel to luminance lower than the predetermined luminance; a first sub-pixel formed in the pixel, wherein a first pixel electrode is formed in the first sub-pixel and electrically connected to a source electrode of the thin film transistor through a control electrode and a contact hole; and a second sub-pixel which is formed in the pixel separately from the first sub-pixel and which provides luminance per unit area lower than that of the first sub-pixel.