Organic photoconductor for an electrophotographic screening proc

Details Organic photoconductor for an electrophotographic screening proc Organic photoconductor for an electrophotographic screening proc

1993-12-22

1995-05-09

Rosasco, S.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

Using specified radiation-sensitive composition other than a...

430 23, 430 29, G03C 500

Patent

active

054138850

ABSTRACT:
The method of electrophotographically manufacturing a screen assembly on an interior surface of a faceplate panel for a color CRT, according to the present invention includes the step of forming a photoreceptor by sequentially coating the surface of the panel with a conductive solution to form a volatilizable conductive layer and then overcoating the conductive layer with an organic photoconductive solution comprising a suitable resin, an electron donor material, an electron acceptor material, a surfactant and an organic solvent to form a volatilizable photoconductive layer. The photoconductive layer of the photoreceptor is resistant to cracking during filming, displays increased phosphor adherence during fixing, can be substantially completely baked-out, and has substantially no spectral sensitivity beyond 550 nm so that the screening process may be carried out in yellow light, rather than in the dark, in order to provide a safe working environment without deleterious effects on the panels coated with the novel photoconductive layer.

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