Process for fabricating a color cathode ray tube

Details Process for fabricating a color cathode ray tube Process for fabricating a color cathode ray tube

1975-03-13

1976-05-04

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

354 1, G03C 500

Patent

active

039544702

ABSTRACT:
The invention provides a process improvement and conjunctive apparatus for facilitating the fabrication of the basic patterned windowed-web portion of a color cathode ray tube screen structure formed in the viewing area of the face panel. In accordance with the invention, additional photo-exposure of the panel is discretely effected to polymerize a defined band of coating confined to the sidewall portion of the panel. The presence of this band subsequently facilitates expeditious removal of extraneous graphite coating from the panel sidewall, from the mask positioning studs embedded therein, and from the terminal sealing edge therearound. Thus, the invention provides desirably bare sidewall-associated surfaces that are free of deleterious particulate matter.

REFERENCES:
patent: 3677758 (1972-07-01), Kaplan
patent: 3762284 (1973-10-01), Park et al.
patent: 3888673 (1975-06-01), Suzuki et al.

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