Patent ID: 8072405
Filing Date: 2011-12-06
Classification: G09G

Abstract:
1. A liquid crystal display device comprising; a liquid crystal display panel having a plurality of pixels; a plurality of video lines which apply a video voltage to the plurality of pixels; and a drive circuit which supplies the video voltage to the plurality of video lines, wherein the liquid crystal display panel has a common electrode to which a first voltage and a second voltage having a potential higher than a potential of the first voltage are alternately applied, the liquid crystal display device includes first switching elements which are connected between the respective video lines and a power source line and are turned on when a voltage applied to the common electrode is changed over from the first voltage to the second voltage, the video voltage is supplied to the respective video lines from the drive circuit via second switching elements, the second switching elements are turned off when the first switching elements are turned on, diode elements are connected between the first switching elements and the power source line, and a flow direction of an electric current in the diode elements is a direction directed from the first switching elements to the power source line.