Patent ID: 8913092
Filing Date: 2014-12-16
Classification: G09G

Abstract:
1. A compensation table generating system comprising: a test signal applying part which applies a test signal corresponding to a plurality of reference gray scales to a display panel; an image obtaining part which obtains a test image of each of the plurality of reference gray scales displayed on the display panel based on the test signal; a position information extractor which measures a brightness distribution of each of the plurality of reference gray scales of the display panel based on the test image of each of the plurality of reference gray scales and extracts a representative position information of an stain area, in which a stain appears, based on the brightness distribution of each of the plurality of reference gray scales; a compensation data calculator which calculates a compensation data corresponding to a position of the stain area; and a brightness compensation table which stores the representative position information and the compensation data, wherein the position information extractor extracts a stain information including a size and a shape of the stain area and outputs a coordinate value of a start point and a coordinate value of an end point of the stain area based on the stain information as the representative position information, the stain area is divided into a first sub area and a second sub area with reference to a predetermined reference line when the brightness distribution of the first sub area and the brightness distribution of the second sub area are symmetric to each other with respect to the reference line, and the compensation table calculator generates the compensation data corresponding to the first sub area or the second sub area.