ELECTROPHOTOGRAPHIC SCREENING METHOD WITH HUMIDITY AND TEMPERATURE INSENSITIVE ORGANIC CONDUCTOR.

摘要

A method of electrophotographically manufacturing a luminescent screen assembly on an interior surface of a faceplate panel (17) of a color CRT (10) includes the steps of: coating the surface of the panel with a conductive solution to form a volatilizable organic conductive layer (32), and overcoating the organic conductive layer with a photoconductive solution to form a volatilizable photoconductive layer (34). The conductive solution comprises the organic polymer 3,4-polyethylene dioxythiophene polystyrene sulphonate (PEDT/PSS); a methanol-soluble polymer or co-polymer selected from the group consisting of polyvinylpyrrolidone (PVP), poly (vinyl pyridine-co-vinyl acetate) (PVPy-VAc), polymethacrylic acid (PMAA), poly (hydroxyethylacrylate-co-methacrylic acid) (PHEA-MAA) poly (2-hydroxyethyl methacrylate) (PHEMA) and polyvinylbutyral (PVB) to reduce organic residue; and a solvent.