Patent ID: 7177062

Claim:
A display apparatus adapted for driving a light modulation element to thereby perform image display, the display apparatus comprising drive means adapted to output corresponding subfield data every predetermined plural subfields by pulse width modulation to thereby drive the light modulation element, and adapted to drive the light modulation element in such a manner that respective subfield data are simultaneously outputted also at any time point within one field time period, wherein the drive means includes pixel drive means comprising a memory cell and a polarity selector, whereby two data lines are drawn out for every pixel from a latch circuit in order to simultaneously import positive data and negative data, wherein the memory cell simultaneously holds the data and the negative data, wherein the memory cell outputs the positive data and the negative data to the polarity selector and the polarity selector output any one of the positive data or the negative data in accordance with accordance with pulse timing as the polarity switching signal, and common potential inverting means capable of inverting polarity of common potential to be applied to the light modulation element in accordance with the positive time period and the negative time period.