Patent ID: 7432907
Filing Date: 2008-10-07
Classification: G02F,G09G

Abstract:
1. An electrophoretic display device, comprising: a plurality of electrophoretic particles and an insulating liquid which are held in a container, a first electrode and a second electrode which are disposed close to said insulating liquid, and means for applying voltages between said first electrode and said second electrode, wherein said electrophoretic display device exhibits a display state including a first state in which said electrophoretic particles are dispersed in said insulating liquid by applying an AC voltage between said first and second electrodes, a second state in which said electrophoretic particles are attracted toward said first electrode by applying a DC voltage of one polarity between said first and second electrodes, and a third state in which said electrophoretic particles are attracted toward said second electrode by applying a DC voltage of the other polarity between said first and second electrodes, wherein the second and third states are exhibited alternately, and wherein the second and third states created by applying the DC voltages having an identical absolute value are substantially the same visual recognition state.