Patent ID: 8199140

Claim:
A display device, comprising: a display panel having a first substrate in which a plurality of first electrodes are disposed in parallel, a second substrate in which a plurality of second electrodes crossing the first electrodes so as to form pixels are disposed in parallel, and a material layer which is disposed between the first and second substrates and reflects or transmits light with a predetermined wavelength according to a write state; first and second drive circuits which drive the first and second electrodes respectively; and a drive control circuit which performs drive control for the first and second drive circuits, wherein when refreshing a display image, the first or second drive circuit, while applying a reset pulse to a plurality of adjacent electrode group of first or second electrodes, scans the electrode group so as to reset the pixels in the electrode group, a plurality of the display panels for which the lights with predetermined wavelengths are all different are layered, and the reflective layer is disposed on the second substrate side of the lowest panel of the plurality of display panels, the drive control circuit of the plurality of display panels controls the first or second drive circuit, so that the scan direction of the electrode group in the first display panel and the scan direction of the electrode group in the second display panel are different, and the drive control circuit randomly switches the direction of scanning of the electrode group by the first or second drive circuit.