Patent ID: 8766894
Filing Date: 2014-07-01
Classification: G09G

Abstract:
1. A signal processing device for use in a liquid crystal display panel, the signal processing device comprising: a motion interpolator that determines a motion vector of a prespecified movable image object within supplied image data, wherein the motion interpolator determines the motion vector by using previous image data associated with a previous frame and present image data associated with a present frame, and wherein the motion interpolator generates intermediate image data for an interpolated intermediate image frame based on the determined motion vector; a look-up table that stores a plurality of predetermined transposition values, the predetermined transposition values being usable to transpose target gray scale data obtained from the interpolation-produced intermediate image frame into a first reference gray scale based on a combination of the previous image data and the intermediate image data, wherein in response to receipt of the previous image data and the intermediate image data, the lookup table outputs a first transposed image data; a memory operatively coupled to store the present image data and the first transposed image data and to sequentially output the first transposed image data and the present image data during the present frame; and a data compensator that receives the first transposed image data and the present image data from the memory, compensates the first transposed image data to thereby generate a first compensation image data, compensates the present image data to generate a second compensation image data, and thereby compensates for slow response characteristics of the liquid crystal display panel based on the first and second compensation image data, wherein the present frame comprises a first sub-frame and a second sub-frame that are successive displayed in time, and the memory outputs the first transposed image data during the first sub-frame and outputs the present image data during the second sub-frame, and wherein the look-up table receives the present image data, transposes a gray scale of the present image data into a second reference gray scale based on the combination of the present image data and the intermediate image data, and outputs the second reference gray scale as a second transposed image data.