Deposition of cathodoluminescent materials by reversal toning

Details Deposition of cathodoluminescent materials by reversal toning Deposition of cathodoluminescent materials by reversal toning

1989-06-19

1991-02-05

Dees, Jose G.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

With faceplate of phosphoric stripes

430198, 430291, 430394, 430937, G03F 728

Patent

active

049904167

ABSTRACT:
A method for the deposition of phosphor containing materials to CRT or VFD faceplates using reversal toning is dislosed. The method incudes the steps of charging the phosphor containing particles and the surface of a patterned photoresist with a charge of the same sign so that the particles are accurately deposited directly to an uncharged transparent surface electrode on the substrate.
In a preferred embodiment, glass and/or polymeric binders may be included with the phosphor containing materials to enhance adherence to the substrate.

REFERENCES:
patent: 2682478 (1954-06-01), Howse
patent: 2959483 (1960-11-01), Kaplan
patent: 3475169 (1969-10-01), Lange
patent: 3481733 (1969-12-01), Evans
patent: 3856518 (1974-12-01), Strik et al.
"Field-Emitter Arrays Applied to Vacuum Fluorescent Display", by Spindt, et al., IEEE Transactions on Electron Devices, vol. 36, No. 1, Jan. 1989.

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