Patent ID: 8188993
Filing Date: 2012-05-29
Classification: G09G,H04N

Abstract:
1. A liquid crystal drive device comprising: a frame memory configured to retain image information of a second frame, wherein the second frame is immediately preceding a first frame; a first calculator configured to calculate a first difference between image information of the first frame and the image information of the second frame; an edge enhancement processor configured to perform edge enhancement processing of the first frame for each of pixels of the first frame and outputting edge enhancement image information; a selector configured to select and output the edge enhancement image information when an absolute value of an output of the first calculator is at least a predetermined value and which selects and outputs image information of the first frame when the absolute value of the output of the first calculator is less than the predetermined value; a second calculator configured to calculate a second difference between an output of the selector and the image information of the second frame; an enhancement coefficient calculator configured to multiply the second difference by an enhancement correction coefficient; and a third calculator configured to calculate sum information by adding together an output of the enhancement coefficient calculator and the image information of the second frame, wherein a liquid crystal panel is driven on the basis of the sum information.