Method of screening a flat mask cathode ray tube

Details Method of screening a flat mask cathode ray tube Method of screening a flat mask cathode ray tube

1985-04-26

1987-09-22

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

430 24, 430 25, 313405, 313407, G03C 500, H01J 920

Patent

active

046955232

ABSTRACT:
A method of screening a tensed mask CRT faceplate to correct for color purity errors resulting from screening of the tube through a tension mask whose supporting frame is distorted by the tensile forces exerted by the mask on the frame. The method includes heating the tensed mask during photoscreening of the tube to a temperature sufficient to substantially reduce the strain imparted to the support frame.

REFERENCES:
patent: 2625734 (1953-01-01), Law
patent: 3399319 (1968-08-01), Schwartz et al.
patent: 3894321 (1975-07-01), Moore
patent: 3975198 (1976-08-01), Palac et al.
patent: 4069567 (1978-01-01), Schwartz
patent: 4315189 (1982-02-01), Goto et al.
patent: 4547696 (1985-10-01), Strauss

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