Patent ID: 7423800

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; electrophoretic particles sealed in a closed space, defined by the first and second substrates and the partition wall, a first electrode disposed at a side surface of the closed space; and a second electrode disposed at a bottom surface of the closed space, with distribution of the electrophoretic particles in the closed space being changed according to a voltage between the first and second electrodes to effect display, wherein each of the first and second electrodes is coated with an insulating layer at a surface thereof, wherein the first electrode has an area equal to an area of the second electrode, and a first distance from the first electrode to a surface of the insulating layer disposed on the first electrode is equal to a second distance from the second electrode to a surface of the insulating layer disposed on the second electrode, and wherein when an intersection line is taken as a line of intersection of an extended plane of an electrode surface of the first electrode and an extended plane of an electrode surface of the second electrode, a distance from the intersection line to an edge of the first electrode surface closest to the intersection line is equal to a distance from the intersection line to an edge of the second electrode surface closest to the intersection line.