Patent ID: 8189017
Filing Date: 2012-05-29
Classification: G09G

Abstract:
1. An apparatus for controlling picture quality of a flat panel display including a panel defect region and a non-defect region, the apparatus comprising: a position determining unit which determines a display position of digital video data; a gray-level determining unit which analyzes a gray level of the digital video data and outputs a gray level information according to the analyzing result; and a FRC (Frame Rate Control) control unit which determines a plurality of dither patterns based on a compensation value, for compensating for brightness in a boundary between the panel defect region and the non-defect region, according to the determined result of the position determining unit and the gray level information and disperses the compensation value using a plurality of dither patterns in the boundary during a plurality of frame periods, wherein each of the plurality of dither patterns includes a plurality of sub dither patterns, and wherein the compensation value of each of the dither patterns is equal to that of each of the sub dither patterns included in each of the dither patterns and the sub dither patterns included in each of the dither patterns are different from one another in the positions of compensation pixels.