Color picture tube having improved shadow mask-frame assembly

Details Color picture tube having improved shadow mask-frame assembly Color picture tube having improved shadow mask-frame assembly

1989-10-30

1990-07-03

Yusko, Donald J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313404, H01J 2981

Patent

active

049394126

ABSTRACT:
A rectangular color picture tube of the shadow mask type includes an improved mask-frame assembly and support therefor. The frame has two substantially perpendicular flanges, a first flange and a second flange. The first flange extends from the second flange away from the screen of the tube. The second flange extends from the first flange toward the shadow mask. The second flange includes peripherally spaced tabs extending therefrom. The shadow mask is telescoped into the frame and is attached to the tabs. In a preferred embodiment, the corners of the frame are truncated. Springs are interconnected to each truncated corner of the frame to support the mask-frame assembly within the tube.

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