Patent ID: 8259062

Claim:
An electrophoretic display device, comprising: a first substrate and a second substrate which are disposed with a spacing therebetween, a partition wall disposed in the spacing to define a closed space between the first and second substrates, a plurality of first electrodes, having electrode surfaces along the partition wall, disposed on the partition wall at two opposite sides of the closed space, a second electrode, having an electrode surface along the second substrate, disposed on the second substrate, and electrophoretic particles and dispersion liquid disposed in the closed space, the electrophoretic particles moving onto the plurality of first electrodes by a first voltage application between the first and second electrodes and moving onto the second electrode by a second voltage application of an opposite polarity to the first voltage application between the first and second electrodes, wherein an electrode surface area of the plurality of first electrodes is substantially equal to an electrode surface area of the second electrode.