The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2001
Filed:
Aug. 23, 1999
Pabitra Datta, late of Cranbury, NJ (US);
Gregory James Cohee, Newtown, PA (US);
Nitin Vithalbhi Desai, Princeton Junction, NJ (US);
Steven Anthony Colbert, Lancaster, PA (US);
Kangning Liang, Lancaster, PA (US);
Thomson Licensing S.A., Boulogne Cedex, FR;
Abstract
In accordance with the present invention, a method of electrophotographically manufacturing a luminescent screen assembly on an interior surface of a faceplate panel,of a color CRT,includes the steps of: coating the surface of the panel with a conductive solution to form a volatilizable organic conductive layer,, and overcoating the organic conductive layer,with a photoconductive solution to form a volatilizable photoconductive layer,. 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) and poly (hydroxyethyl methacrylate) (PHEMA) to reduce organic residue; and a solvent.