Patent ID: 8629832

Claim:
An electrophoretic display device comprising: an electrophoretic display panel that has a plurality of drive electrodes, a common electrode, a plurality of electrophoretic particles disposed between the drive electrodes and the common electrode, and a display having a plurality of display units, each associated with a particular one of the drive electrodes; a drive control unit that applies voltage between the drive electrodes and the common electrode to update the display of the electrophoretic display panel; the electrophoretic display device being capable of displaying a plurality of colors including a first color and a second color in each of the display units; the drive control unit including a display color setting means that sets for each display unit an updated display color indicating the color to be displayed after the display unit is updated, a first pulse-applying means that applies a first pulse between the common electrode and the drive electrode of at least one display unit, and a second pulse-applying means that applies a second pulse between the common electrode and the drive electrode of at least one display unit, wherein the first pulse-applying means applies the first pulse to display in the at least one display units the first color or second color that is different from the color to be displayed after the display color setting means sets the updated display color for that display unit, and the second pulse-applying means applies a second pulse that is opposite in polarity to the first pulse in the same amount as the first pulse to set the color of the at least one display unit to the updated display color; and a third pulse-applying means that applies a third pulse between the common electrode and the drive electrode of the at, least one display unit; wherein to the at least one display unit for which the updated display color is set to any intermediate color between the first color and the second color, the third pulse applied by the third pulse-applying means is the same polarity as the second pulse.