Color selecting electrode for cathode-ray tube

Details Color selecting electrode for cathode-ray tube Color selecting electrode for cathode-ray tube

1994-06-23

1996-01-30

O'Shea, Sandra L.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313404, H01J 2980

Patent

active

054882630

ABSTRACT:
A color selecting electrode for use in a cathode-ray tube is provided which includes a frame having a pair of opposed first supports and a pair of opposed second supports extending in a direction such as to cross the pair of first supports, and grid elements disposed on the pair of first supports at a fixed pitch and stretchedly bridging the pair of first supports, wherein the pair of second supports and the grid elements are, respectively, made of materials selected such that an average thermal expansion coefficient of the pair of second supports over a temperature range from 0.degree. C. to 470.degree. C. is equal to or lower than 85% of that of the grid elements over the same temperature range.

REFERENCES:
patent: 4291253 (1981-09-01), Ohkoshi et al.
patent: 4333034 (1982-06-01), Ohgoshi et al.
patent: 4495437 (1985-06-01), Kume et al.
patent: 4504764 (1985-03-01), Sakamoto et al.
patent: 4605878 (1986-08-01), Saita et al.
patent: 4780641 (1988-10-01), Hashiba et al.
patent: 4798992 (1989-01-01), Ichigaya et al.
patent: 5111107 (1992-05-01), Kume et al.

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