Patent ID: 8493303

Claim:
A control driver for a liquid crystal display panel comprising: an operation circuit configured to perform a certain operation on input image data to generate operation data, and output higher order bit data and lower order bit data of said operation data; an LUT (Look-up Table) configured to include a V-T (Voltage-Transmittance) characteristic of said liquid crystal display panel, and output first output data and second output data as display data based on said higher order bit data and said V-T characteristic; and a linear interpolation D/A converter configured to perform a linear interpolation operation and a D/A conversion to generate output voltage supplied to said liquid crystal display panel in response to said first output data, said second output data and said lower order bit data, wherein said operation circuit performs a gamma operation which converts said input image data corresponding to a certain gamma value into image data corresponding to another gamma value to obtain gamma operation result data, and outputs said gamma operation result data as said operation data, wherein said operation circuit performs said gamma operation without depending on the V-T characteristic of the liquid crystal display panel, and wherein the operation circuit is configured to change said certain gamma value in real time in response to a gamma selection signal.