Radiation imagery chemistry: process – composition – or product th – Producing cathode-ray tube or element thereof – Using specified radiation-sensitive composition other than a...
Patent
1991-04-29
1992-08-04
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Producing cathode-ray tube or element thereof
Using specified radiation-sensitive composition other than a...
427 64, 427 68, 427 31, G03G 1322, G03C 500
Patent
active
051358263
ABSTRACT:
The method of electrophotographically manufacturing a luminescent screen assembly on a substrate for use within a CRT, according to the present invention, includes the steps of: forming a conductive layer on the substrate; overcoating the conductive layer with a photoconductive solution comprising an organic polymeric material, a suitable photoconductive dye, a plasticizer and a solvent to form a photoconductive layer; and, then, establishing an electrostatic charge on the photoconductive layer. Selected areas of the photoconductive layer are exposed to visible light to affect the charge thereon, and the photoconductive layer is developed with charged screen structure material. The improved method utilizes a dialkyl phthalate plasticizer which is selected from the group consisting of dibutylphthalate (DBP), dioctylphthalate (DOP), and diundecylphthalate (DUP).
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Datta Pabitra
Ritt Peter M.
Stork Harry R.
Coughlin Jr. Vincent J.
Irlbeck Dennis H.
Martin Roland
RCA Thomson Licensing Corp.
Tripoli Joseph S.
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