DATA COMPENSATOR AND DISPLAY DEVICE INCLUDING THE SAME

摘要

A data compensator includes first logic, second logic, third logic, fourth logic, and fifth logic. The first logic calculates block compensation coefficients for blocks in a first frame based on first pixel data of the first frame. The second logic generates first gamma applied pixel data based on the first pixel data of the first frame and to generate second gamma applied pixel data based on the first gamma applied pixel data and second pixel data of a second frame adjacent the first frame. The third logic selects a number of the block compensation coefficients based on a pixel coordinate. The fourth logic generates a pixel compensation coefficient corresponding to the second pixel data by interpolating the selected block compensation coefficients based on the pixel coordinate. The fifth logic generates output pixel data based on the second gamma applied pixel data and the pixel compensation coefficient.

主权项

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 some 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.