Patent ID: 7956832
Filing Date: 2011-06-07
Classification: G09G

Abstract:
1. A liquid crystal display device comprising: a liquid crystal display panel having a plurality of liquid crystal pixels arranged in a matrix form, a plurality of gate lines arranged along the rows of liquid crystal pixels, a plurality of source lines arranged along the columns of liquid crystal pixels and a plurality of pixel switching elements which are arranged near intersections between the gate lines and the source lines and each of which applies the potential of a corresponding one of the source lines as a pixel voltage to a corresponding one of the liquid crystal pixels when driven via a corresponding one of the gate lines; and a display control circuit which performs non-video signal writing for driving the source lines according to a non-video signal while the gate lines are being driven in parallel for every preset number and performs video signal writing for driving the source lines according to a video signal while the gate lines are being sequentially driven for every preset number; wherein the display control circuit is configured to provide a precharge period between a non-video signal writing period in which a preset number of gate lines are driven for the non-video signal writing and a video signal writing period in which one of the preset number of gate lines is initially driven for the video signal writing after the non-video signal writing period and transition the potentials of the source lines to a level which is close to an intermediate gradation display level corresponding to the video signal in the precharge period.