Patent ID: 7528815

Claim:
A driving method for a liquid crystal display panel that includes a plurality of matrix-arranged pixels positioned on intersections of a plurality of scanning lines and a plurality of data lines, each of the pixels having (a) a thin film transistor whose gate electrode, source electrode and drain electrode are separately connected to the scanning line, the data line and a pixel electrode and (b) a first storage capacitor whose one terminal electrically connected to the pixel electrode and another terminal electrically connected to a modulation signal source electrically independent from the scanning lines and a common electrode, comprising the steps of: starting a scanning period for the scanning line; writing a modulation signal provided by the modulation signal source into the first storage capacitor; inducing a coupled voltage to change the potential of the pixel electrode from an initial level to a first level through the modulation signal applied to the first storage capacitor, wherein the variation of the potential of the pixel electrode is substantially equal to the coupled voltage; and writing a data signal from the data line into the pixel electrode to change the potential of the pixel electrode from the first level to a second level, wherein the variation of the potential of the pixel electrode is substantially equal to the potential of the data signal.