Method of fabricating a phosphor screen for a cathode ray tube

Details Method of fabricating a phosphor screen for a cathode ray tube Method of fabricating a phosphor screen for a cathode ray tube

1993-11-19

1995-05-16

Rosasco, Steve

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

430 26, 430 29, G03C 500

Patent

active

054159601

ABSTRACT:
A method for fabricating a phosphor screen of a cathode ray tube which includes the steps of forming a light absorbing pattern on an inner surface of a panel of the cathode ray tube, applying a slurry of first phosphor on the inner surface of the panel, rotating the panel for drying the slurry of first phosphor around a first axis of rotation, exposing the first phosphor selectively so as to form a first phosphor pattern, applying a slurry of second phosphor on the inner surface of the panel, rotating the panel for drying the slurry of second phosphor around a second axis of rotation, exposing the second phosphor selectively so as to form a second phosphor pattern, applying a slurry of third phosphor on the inner surface of the panel, rotating the panel for drying the slurry of third phosphor around a third axis of rotation, and exposing the third phosphor selectively so as to form a third phosphor pattern, wherein the first, second and third axes of rotation are parallel to one another.

REFERENCES:
patent: 4772345 (1988-09-01), Sagow et al.
Patent Abstract of Japan, JP-A-01 052 363, vol. 13, No. 254, 13 Jun. 1989 "Formation of Fluorescent Screen of Color . . . ".
Patent Abstract of Japan, JP-A-62 234 838, vol. 12, No. 106, 6 Apr. 1988 "Manufacture of Phosphor Film in Color . . . ".

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