Color cathode ray tube having improved slot type shadow mask

Details Color cathode ray tube having improved slot type shadow mask Color cathode ray tube having improved slot type shadow mask

1994-03-15

1996-06-04

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907, H01J 3120

Patent

active

055236472

ABSTRACT:
A color cathode ray tube having a slot type shadow mask and including an evacuated envelope which includes a panel with phosphors coated on an inner surface thereof, a neck containing an electron gun and a funnel connecting the panel and the neck with each other, and also including a shadow mask assembly which is suspended inside the panel, the shadow mask assembly including a mask frame and the shadow mask held on the mask frame, the shadow mask having a large number of grilles and bridges disposed at an interval for connecting adjacent grilles, the grilles and the bridges having sections which are concave in opposite directions, respectively.

REFERENCES:
patent: 4495437 (1985-01-01), Kume et al.
patent: 4942332 (1990-07-01), Adler et al.
patent: 4942333 (1990-07-01), Knox
patent: 4973283 (1990-11-01), Adler et al.
patent: 5111106 (1992-05-01), Kaplan et al.
patent: 5218265 (1993-06-01), Reidinger

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