Method of manufacturing a phosphor screen for a CRT

Details Method of manufacturing a phosphor screen for a CRT Method of manufacturing a phosphor screen for a CRT

1995-12-22

1999-07-27

McCamish, Marion

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

430 28, G03C 500

Patent

active

059288213

ABSTRACT:
The present invention relates to a method of electrophotographically manufacturing a phosphor screen 22 comprising a multiplicity of color-emitting screen elements arranged in color groups on an interior surface of a faceplate panel 12 of a color CRT 10. The multiplicity of screen elements is exposed to a source 35 of UV radiation to stimulate the screen elements to emission. The emission from the screen elements is utilized to determine, on a pixel-by-pixel basis, a first emission characteristic of each color group of screen elements. Then, a subsequent manufacturing step (58, 62) is performed that affects the screen elements, and the multiplicity of screen elements is re-exposed to the source of UV radiation to stimulate the screen elements to emission. The resultant emission is utilized to determine, on a pixel-by-pixel basis, a second emission characteristic from each color group of screen elements. The second emission and first emission characteristics are then compared on a pixel-by-pixel basis (60, 64).

REFERENCES:
patent: 3558310 (1971-01-01), Mayaud
patent: 4454541 (1984-06-01), Duschl
patent: 4542404 (1985-09-01), Duschl
patent: 4584481 (1986-04-01), Matey
patent: 4917978 (1990-04-01), Ritt et al.
patent: 5083959 (1992-01-01), Datta et al.
patent: 5240798 (1993-08-01), Ehemann, Jr.
patent: 5276508 (1994-01-01), Boisvert et al.
patent: 5370952 (1994-12-01), Datta et al.
patent: 5474866 (1995-12-01), Ritt et al.
"A Frame-Transfer CCD Color Imager with Vertical Antiblooming," by Van de Steeg et al., IEEE Transactions on Electron Devices (Aug. 1985) vol. ED-32, No. 8, pp. 1430-1438, (Abstract Only), Aug. 1995.
U.S. Pat. Appln., Ser. No. 297,740 filed Aug. 30, 1994 by Ritt et al. Now U.S. Patent 5,474,866.

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