Patent ID: 7605788
Filing Date: 2009-10-20
Classification: G02F,G09G

Abstract:
1. A method of driving a liquid crystal display device including a plurality of picture elements arranged in horizontal and vertical directions, and a display signal feeding part which receives input of a video signal and feeds a display signal to each of the plurality of picture elements, wherein the display signal feeding part determines the gray level and polarity of a display signal to be fed to each picture element in accordance with a bright and dark display pattern and a polarity pattern; the bright and dark display pattern indicates the arrangement corresponding to one frame of bright display picture elements, each of which undergoes bright display through a supply of a first display signal having a higher gray level than a gray level of the video signal, and dark display picture elements, each of which undergoes dark display through a supply of a second display signal having a lower gray level than the gray level of the video signal; and the polarity pattern indicates the arrangement corresponding to one frame of positive-polarity picture elements, each of which receives the supply of a display signal of positive polarity, and negative-polarity picture elements, each of which receives the supply of a display signal of negative polarity; in the bright and dark display pattern, the bright display picture elements and the dark display picture elements alternate with each other every one picture element in the horizontal and vertical directions; in the polarity pattern, the positive-polarity picture elements and the negative-polarity picture elements alternate with each other every two picture elements in the horizontal and vertical directions; and wherein, in the polarity pattern, each group of four adjacent picture elements of said plurality of picture elements consists of any one of the following configurations: