Mask support structure for tension mask color cathode ray tubes

Details Mask support structure for tension mask color cathode ray tubes Mask support structure for tension mask color cathode ray tubes

1990-12-27

1991-09-17

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313402, 313408, 445 30, H01J 2907, H01J 900

Patent

active

050497782

ABSTRACT:
A tension mask color cathode ray tube includes a glass faceplate having on its inner surface a centrally disposed, rectangular screening area, and on opposed sides thereof a non-metal shadow mask support structure of predetermined Q-height. The mask support structure has a metal element embedded in the apex of the structure. The apex of the structure and the metal element are ground to define a surface for receiving a tensed foil shadow mask. The surface contains a metal portion to which the mask may be welded, and a non-metal portion which supports the metal portion.

REFERENCES:
patent: 4737681 (1988-04-01), Dietch et al.
patent: 4745330 (1988-05-01), Capek et al.
patent: 4790786 (1988-12-01), Strauss
patent: 4828523 (1989-05-01), Fendley et al.
patent: 4828524 (1989-05-01), Fendley
patent: 4891546 (1990-01-01), Dougherty et al.
patent: 4908995 (1990-03-01), Dougherty et al.

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