Registration transfer process for use in the manufacture of a te

Details Registration transfer process for use in the manufacture of a te Registration transfer process for use in the manufacture of a te

1987-11-12

1988-10-11

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

29423, 29464, 430 23, 445 30, 445 52, H01J 9227, H01J 926

Patent

active

047768223

ABSTRACT:
A proceses is disclosed for use in the manufacture of a color cathode ray tube having a rectangular flat faceplate. The process comprises positioning the faceplate in a predetermined x-y plane by referencing faceplate a-b-c reference areas on two adjacent edges or sides of the faceplate with complementary a-b-c reference points on a faceplate locating fixture; the fixture also has three spaced six-point precision indexing means. With the faceplate a-b-c reference areas and the faceplate locating fixture a-b-c points mutually referenced, six-point precision indexing means are attached to the faceplate in registation with the precision indexing means on the faceplate locating fixture. Using the precision indexing means attached to the faceplate, a shadow mask is registered with the faceplate through the use of complementary precision indexing means to provide a faceplate-shadow mask assembly in mutual precise registry. Using the registered faceplate-shadow mask assembly, a pattern of phosphors is photodeposited on the faceplate by photoexposure means. The registry of the pattern of phosphors and the shadow mask is accomplished according to the invention with a precision made possible by the use of the six-point precision indexing means, and the location of the patterns on the faceplate is made possible by the use of the a-b-c referencing of the faceplate and the faceplate locating fixture.

REFERENCES:
patent: 2916644 (1959-12-01), Kautz et al.
patent: 3787937 (1974-01-01), Palac
patent: 3894321 (1975-07-01), Moore
patent: 3904914 (1975-09-01), Palac
patent: 3995283 (1976-11-01), Dougherty et al.
patent: 4100451 (1978-07-01), Palac
patent: 4595857 (1986-06-01), Rowe et al.
patent: 4621797 (1986-11-01), Ziegenfuss
patent: 4713034 (1987-12-01), Lee et al.
patent: 4721488 (1988-01-01), Dougherty et al.

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