Patent ID: 7450096

Claim:
A method of driving a liquid crystal display device comprising: delaying odd-line data of a current frame data by one line interval; merging the delayed odd-line data of the current frame data with non-delayed even-line data of the current frame data to simultaneously output the odd-line data and the even-line data of the current frame data compressing the merged odd-line data and the even-line data of the current frame; storing the compressed current frame data in a frame memory; outputting a compressed data of a previous frame from the frame memory; restoring the compressed data of the previous frame; delaying even-line restored data of the restored data of the previous frame by one line interval; selecting the delayed even-line restored data and non-delayed odd-line restored data of the previous frame alternately for each one line interval; restoring the compressed current frame data while storing the compressed current frame data to the frame memory; delaying even-line restored data of the restored data of the current frame by one line interval; selecting the delayed even-line restored data and non-delayed odd-line restored of the current frame data alternately for each one line interval; and comparing the restored data of the previous frame with the restored data of the current frame; and modulating the current frame data into a predetermined modulated data based on the comparison result.