Patent ID: 9570012
Date: 2017-02-14
CPC Classifications: G09G

Claim:
1. A data compensator, comprising: a block compensation coefficient generator to calculate block compensation coefficients corresponding to blocks in a first frame based on first pixel data of the first frame; a gamma applier to generate first gamma applied pixel data by applying a first gamma curve corresponding to a first frame compensation margin to the first pixel data of the first frame, the gamma applier to generate second gamma applied pixel data by applying a second gamma curve corresponding to a second frame compensation margin to a second pixel data of a second frame, which is a next frame of the first frame; a compensation margin generator to generate the second frame compensation margin based on the block compensation coefficients and the first gamma applied pixel data; a block compensation coefficient storage to store the block compensation coefficients, to select a number of block compensation coefficients among the block compensation coefficients based on a pixel coordinate, to output the selected block compensation coefficients; a pixel compensation coefficient generator to generate a pixel compensation coefficient corresponding to the second pixel data by interpolating the selected block compensation coefficients based on the pixel coordinate; and a first multiplier to generate output pixel data by multiplying the second gamma applied pixel data and the pixel compensation coefficient.