Patent ID: 7209281
Filing Date: 2007-04-24
Classification: G02F

Abstract:
1. An electrophoretic display device comprising: a substrate, and a display electrode composed of a conductor provided on one surface of the substrate and having a predetermined shape; a background electrode composed of a conductor provided on another surface of the substrate in a manner to overlap a periphery of the display electrode as viewed in a plan view; an insulator having a predetermined height and provided on the other surface of the substrate in a manner to entirely surround the display electrode and the background electrode as viewed in a plan view; a transparent electrode provided on the insulator in a manner to cohere to the insulator; voltage application means for applying a voltage across the display electrode and the transparent electrode; a wiring provided on the one surface of the substrate for electrically conducting the voltage application means to the display electrode; and a plurality of electrophoretic particles and a dispersion medium for dispersing the electrophoretic particles, wherein the plurality of electrophoretic particles and the dispersion medium are contained inside the insulator between the substrate and the transparent electrode, and the voltage application means applies a voltage across the transparent electrode and the display electrode to thereby cause the electrophoretic particles to migrate in the dispersion medium to display a desired image.