Method of manufacturing a color display tube and a color display

Details Method of manufacturing a color display tube and a color display Method of manufacturing a color display tube and a color display

1989-08-04

1990-10-23

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With testing or adjusting

313402, 313404, 445 30, H01J 944

Patent

active

049648284

ABSTRACT:
A method of manufacturing a color display tube comprising a display window having a display screen, a flat tensed shadow mask 2 in which the shadow mask 2 is provided with strips 9, 14, 15, 16, along its edges the color display tube has been assembled a test pattern is displayed on the display screen via the shadow mask 2, and certain strips are irradiated using an electron beam or a laser beam, to obtain a desired test pattern by aligning the shadow mask 2 relative to the display screen.

REFERENCES:
patent: 3468005 (1969-09-01), Kautz
patent: 3643299 (1972-02-01), Brown
patent: 4652791 (1987-03-01), Palac et al.
patent: 4756702 (1988-07-01), Steiner

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