Patent ID: 6219019
Filing Date: 2001-04-17
Classification: G09G

Abstract:
A method for driving a liquid crystal display apparatus which includes liquid crystal having spontaneous polarization disposed between a plurality of pixel electrodes arranged in a matrix form and a common electrode disposed to face the pixel electrodes, the liquid crystal having a dark state when no voltage is applied to the liquid crystal and a bright state when a positive or a negative voltage is applied to the liquid crystal, comprising:a polarity inversion step of periodically inverting polarities of at least one part of voltages applied between the plurality of pixel electrodes and the common electrode; anda write-in step of applying voltages to the pixel electrodes to hold display voltages corresponding to the applied voltages to the pixel electrodes, respectively;wherein the polarity of inversion step includes a step of effecting the polarity inversion to satisfy an expression of TS/TF.gtoreq.2 when a frame period is set to TF and a period for effecting the polarity inversion is set to TS.