Patent ID: 7612751
Filing Date: 2009-11-03
Classification: G09G

Abstract:
1. A liquid crystal display comprising: a liquid crystal panel assembly which displays images; a signal controller comprising a logic circuit and a multilevel graying unit, the logic circuit for classifying source image data inputted into at least two sections with respect to a boundary gray value by dividing grays and for correcting the source image data into first corrected data based on gamma correction data predetermined by gamma characteristics of the liquid crystal panel assembly, the multilevel graying unit for converting the first corrected data into second corrected data wherein a bit number of the second corrected data is less than a bit number of the first corrected data; and a data driver for outputting data voltages corresponding to the second corrected data from the signal controller, wherein the correcting of the source image data into the first corrected data is performed in a different manner for different sections, and the boundary gray value is defined as a gray value corresponding to a maximum magnitude difference between gray values of the source image data and gray values of the first corrected data.