Patent ID: 7760174

Claim:
An apparatus for driving a liquid crystal display (LCD) panel of an LCD device, the apparatus comprising: a compensation unit, which compensates for first image data with reference to a predetermined lookup table (LUT), which includes a plurality of sub-LUTs for a plurality of pixel data of the first image data, in response to a first input control signal in a first mode, the first image data being consecutively input to the apparatus, the compensation unit having a LUT unit, which stores the predetermined LUT, searches the predetermined LUT for a compensation value, by which the current frame of the first image data is to be compensated for, with reference to the current frame and a frame of the first image data previously input to the apparatus, and outputs the searched compensation value, the frame being referred to as a previous frame, and the LUT unit having a plurality of sub-LUT units, which store the plurality of sub-LUTs for the plurality of pixel data of the first image data, search the sub-LUTs for compensation values for the pixel data of the first image data with reference to pixel data of the current frame of the first image data and pixel data of the previous frame of the first image data, and output the searched compensation values; a storage unit, which updates and then stores the first image data and second image data and outputs one of the first image data or the second image data in response to a second input control signal, the second image data being consecutively input to the apparatus; an output unit, which outputs one of the first image data, the second image data, or the compensated first image data in response to an output control signal; and a control unit, which generates the first input control signal, the second input control signal, and the output control signal in response to a predetermined control signal.