Color display tube having a shadow mask

Details Color display tube having a shadow mask Color display tube having a shadow mask

1993-09-28

2000-01-11

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313404, H01J 2907

Patent

active

060139757

ABSTRACT:
A colour display tube 1 has a shadow mask 12 in a supporting frame 20. The supporting frame comprises at least two sides 22 which bend when the temperature increases. This causes the distance between the shadow mask and the display screen to change. An improvement of "overall doming" is possible.

REFERENCES:
patent: 4146816 (1979-03-01), Morrell
patent: 4437036 (1984-03-01), Ragland, Jr.

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