Electron gun having blackened grids used in-line type color CRT,

Details Electron gun having blackened grids used in-line type color CRT, Electron gun having blackened grids used in-line type color CRT,

1988-03-21

1990-02-13

Wieder, Kenneth

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

313428, 313449, 313458, H01J 2956

Patent

active

049009788

ABSTRACT:
An in-line type color CRT electron gun having a triode and a plurality of grids, characterized in that at least one of the plurality of grids is made of a black member or a member on which a black film is formed. The time required for attaining a stable temperature of the member is reduced, thereby improving deviations in static convergence and reducing the time required for an image to be normally displayed.

REFERENCES:
patent: 4546287 (1985-10-01), Collins et al.

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