Method for manufacturing color cathode ray tube

Electric lamp and discharge devices – Cathode ray tube – Shadow mask – support or shield

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Details

313403, 427 69, 427 70, 4271263, 445 47, H01J 2907, H01J 914

Patent

active

051700930

ABSTRACT:
A method for manufacturing a color CRT includes the step of coating a shadow mask of the color CRT in black. It further includes the step of forming an electron beam reflecting film by depositing tungsten oxide with a large electron beam reflection coefficient on the side of an electron beam irradiated surface of the shadow mask coated in black.

REFERENCES:
patent: 3392297 (1968-07-01), Schwartz
patent: 4339687 (1982-07-01), Redington
patent: 4442376 (1984-04-01), Van Der Waal et al.
patent: 4751424 (1988-06-01), Tong
patent: 4810927 (1989-03-01), Watanabe

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