Patent ID: 8279244

Claim:
An electrophoretic display device comprising: a plurality of scanning lines; a plurality of signal lines that cross the plurality of the scanning lines; a driving circuit that drives the plurality of scanning lines and the plurality of signal lines; a controller controlling the driving circuit; an opposite electrode; and a plurality of pixels individually corresponding to an intersection between one of the plurality of the scanning lines and one of the plurality of the signal lines, wherein each pixel includes: a pixel electrode facing the opposite electrode; a switching transistor connected to the one signal line, the one scanning line, and the pixel electrode; and an electrophoretic element disposed between the pixel electrode and the opposite electrode, the electrophoretic element having a plurality of electrically charged micro-particles dispersed in a dispersion media, wherein the controller executes driving by: forming a complete display image in an image forming period, the image forming period including L frame periods (L being an integer greater than two), wherein each of the plurality of scanning lines are adapted to be selected in each of the L frame periods, and wherein the plurality of pixels are in a bright display state or a dark display state at the end of the image forming period, and wherein a gray scale of the complete display image is displayed by an area gray scale method.