Method for manufacturing color cathode ray tube

Details Method for manufacturing color cathode ray tube Method for manufacturing color cathode ray tube

1990-06-08

1992-12-08

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

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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