Patent ID: 7046228

Claim:
A process for the manufacture of an electrophoretic display comprising electrophoretic cells wherein each of said electrophoretic cells is capable of providing a three-color system, displaying the color of charged pigment particles, or the color of a dielectric solvent or solvent mixture or a background color, said process comprises: a) coating a radiation curable material over a top electrode layer; b) forming open electrophoretic cells on the radiation curable material by microembossing or imagewise exposure to radiation; c) filling the open electrophoretic cells with an electrophoretic composition comprising charged pigment particles dispersed in a dielectric solvent or solvent mixture and the charged pigment particles carry the same charge polarity and are of the same color; d) sealing the filled electrophoretic cells; and e) laminating the sealed electrophoretic cells with a layer comprising bottom electrodes and in-plane electrodes.