Patent ID: 7525527
Filing Date: 2009-04-28
Classification: G09G

Abstract:
1. A method for driving a liquid crystal display device which comprises a first substrate and a second substrate opposing the first substrate and having a common electrode so as to sandwich the liquid crystal; the first substrate comprising: a plurality of data lines and a plurality of gate lines arrayed crosswise; and a pixel matrix having a plurality of pixels, each being disposed at each of intersections between said data lines and said gate lines, each pixel having a pixel transistor and a pixel capacitor; said pixel being driven by said gate line arranged common for each pixel row, and the data line arranged common to each pixel column; wherein said driving method comprises: in one vertical period during which signals of one frame are written into said pixel matrix, selecting a gate line per one horizontal period during which signals of one pixel row of the pixel matrix are written; and writing video signals supplied to said data lines into the pixels of one pixel row connected said selected gate line; said selecting said gate line(s) is performed by: dividing the pixel matrix into a plurality of units of a plurality of gate lines; and selecting said gate lines in timely adjacent (contiguous) vertical periods so as to be included in different divided pixel regions; said data lines are driven such that polarities of the video signals supplied to any one of said data lines relative to a potential of the common electrode are different from one horizontal period to another timely adjacent (contiguous) ones; and in said one vertical period, the polarities of the image signals written into all the pixels in each of said divided pixel regions relative to the potential of said common electrode are the same.