Patent ID: 7773069

Claim:
A method of driving an electrophoretic display which encapsulates an electrophoretic material between a pair of substrates, the electrophoretic display including M×N pixels (M and N being integers greater than two), the M×N pixels including M scanning pixel groups each having N pixels, the method comprising: displaying an image on the electrophoretic display by switching some of the M×N pixels at least from a bright display to a desired dark display, and vice versa, wherein a period for forming an image includes a plurality of L frame periods (L being an integer greater than two), each of the frame periods being a period for introducing image signals to the M×N pixels by sequentially selecting each of the M scanning pixels groups, wherein image signals are applied to at least one of the M×N pixels a plurality of times during the period for forming the image, wherein the L frame periods include a first frame period and a second frame period successively following the first frame period, and wherein the image signals are applied to the same pixels in each of the first frame period and the second frame period, and wherein the image signals provided in each of the first and second frame periods are equal to each other in width and electric potential.