Patent ID: 7623106
Filing Date: 2009-11-24
Classification: G09G,H01L

Abstract:
1. A method of driving a semiconductor display device, the semiconductor display device comprising: an opposing electrode; a plurality of pixels, each of which comprises: a plurality of source signal lines and a plurality of gate signal lines, each of which is electrically connected to at least one of the pixel TFTs, the method comprising the steps of: wherein each of the display signals has one of a positive polarity and a negative polarity relative to an electric potential of the opposing electrode in accordance with a polarity pattern; wherein the polarity pattern is maintained during the frame period, and irregularly changed to another polarity pattern after the frame period; wherein the display signals having a same polarity are input to the pixel electrodes through the pixel TFTs connected to one of the plurality of source signal lines; wherein polarities of the display signals are independently controlled in each of the plurality of source signal lines; and wherein polarities of the display signals input to the pixel electrodes through the pixel TFTs connected to one of the plurality of source signal lines are changed together.