Patent ID: 7088325

Claim:
A method for driving an electro-optical device which includes a plurality of pixels including a pixel electrode and a counter electrode which is opposed to the pixel electrode, each pixel including a k-bit memory (where k is a natural number 1, 2, 3, . . . ) that stores k-bit gray-scale data and which performs k-bit gray-scale display in accordance with the k-bit gray-scale data, comprising: writing gray-scale data to the memory of each pixel; generating a pulse width signal with a time density in accordance with a comparison result of the gray-scale data written to the memory and k-bit gray-scale signals, wherein the time density corresponds to a voltage duration to accumulate a charge in a liquid crystal layer of the pixel; applying to said counter electrode a field reverse signal whose polarity is inverted every predetermined period through the pulse width signal; and applying one of either the field reverse signal or a reverse signal having an inverted relationship with a level of the field reverse signal to the pixel electrode in accordance with the pulse width signal.