Patent ID: 6225029
Filing Date: 2001-05-01
Classification: G02F

Abstract:
In a method for making a plasma channel plate of a plasma-addressed electro-optic display device comprising a layer of electro-optic material, data electrodes coupled to the electro-optic layer and adapted to receive data voltages for activating portions of the electro-optic layer, a plurality of elongated plasma channels extending generally transverse to the data electrodes for selectively switching on said electro-optic portions, and a dielectric sheet closing off the plasma channels on the side facing the data channels, said plasma channels each comprising spaced cathode and anode plasma electrodes and an ionizable gas filling, said method comprising:(a) providing a substantially transparent substrate,(b) forming on the substrate a plurality of spaced walls of polyimide material,(c) vapor-depositing a protective material to thereby form a protective layer over each of the spaced walls to prevent deterioration,(d) forming only on surfaces of the protective layer which face each other electrode layer portions,(e) disposing over the protective layer on each of the spaced walls a thin dielectric member.