Patent ID: 7580019

Claim:
A driving apparatus of a display device, the driving apparatus comprising: a first line memory to delay a first line data of the current frame data by one line period; and a combiner to combine the delayed first line data with un-delayed second line data and to output the combined data; a compressor to compress the combined data of the current frame from the combiner; a frame memory to store and delay the compressed current frame data and output as the compressed data of a previous frame; a first restorer to restore the compressed data of the current frame from the compressor; a second line memory to delay data from the first restorer; a first multiplexer to alternately output un-delayed data from the first restorer and delayed data from the second line memory; a third line memory to delay the compressed data of the previous frame from the frame memory; a second restorer to restore the compressed data of the previous frame from the third line memory; a fourth line memory to delay data from the second restorer; a second multiplexer to alternately output un-delayed data from the second restorer and delayed data from the fourth line memory; a modulated portion determiner to compare the previous frame from the second multiplexer with the current frame data from the first multiplexer and to determine a modulated portion for the current frame in accordance with the comparison result; a fifth line memory to delay un-compressed data of the current frame; and a modulator to modulate the current frame data by adjusting the current frame data from the fifth line memory using the modulated portion.