Patent ID: 7564437
Filing Date: 2009-07-21
Classification: G09G

Abstract:
1. A liquid crystal display device comprising: a plurality of drain lines; a plurality of gate lines crossing the drain lines; a plurality of pixel electrodes connected to corresponding drain lines; a common electrode; a liquid crystal layer disposed between the pixel electrodes and the common electrode; a plurality of supplemental capacitors each provided for corresponding pixel electrodes, each of the supplemental capacitors comprising a first electrode connected to a corresponding pixel electrode and a second electrode; a plurality of supplemental capacitance lines each connected to corresponding second electrodes and configured to receive supplemental voltages; and a correction circuit correcting image signals supplied to the pixel electrodes through the drain lines and the supplemental capacitors when a start voltage that is a voltage of a pixel electrode at a start of receiving a supplemental voltage or an end voltage that is a voltage of the pixel electrode at an end of receiving the supplemental voltage falls within a range of voltage applied to the pixel electrode that corresponds to a change in a capacitance of the liquid crystal layer, the correction circuit correcting the image signals so as to compensate for the change in the capacitance of the liquid crystal layer.