Patent ID: 8228319

Claim:
A display device comprising: a display panel on which a plurality of pixels are provided; and a controller driver driving said display panel in response to input image data, said controller driver including: a preceding image processing stage adapted to perform a color-reduction processing on said input image data by using a dither matrix to generate color-reduced image data; a memory adapted to store said color-reduced image data; a latter image processing stage adapted to perform a modification processing on said color-reduced image data received from said memory to generate output image data; and a driver circuit driving said display panel in response to said output image data, wherein said latter image processing stage comprises: a counter generating a counter value such that said counter value is updated every frame period; a binary LUT (lookup table) outputting an LUT output value in response to said counter value and coordinates of a target pixel selected from said plurality of pixels, independent of the color reduced image data; and a selector section generating said output image data from said color-reduced image data in response to said LUT output value, wherein a bit width of said output image data is identical to that of said color-reduced image data, and wherein a value of said output image data is identical to a corresponding value of said color-reduced image data when said LUT output value is a first value, while said value of said output image data is modified from said corresponding value of said color-reduced image data when said LUT output value is a second value different from said first value.