发明名称 |
REGISTRATION TRANSFER PROCESS FOR THE MANUFACTURE OF CATHODE RAY TUBES HAVING TENSION MASKS |
摘要 |
A process 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 registration 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. |
申请公布号 |
WO8904545(A1) |
申请公布日期 |
1989.05.18 |
申请号 |
WO1988US03885 |
申请日期 |
1988.11.01 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
DOUGHERTY, LAWRENCE, W.;FENDLEY, JAMES, R.;KRANER, JAMES, L. |
分类号 |
H01J9/22;H01J9/227;H01J29/02;(IPC1-7):H01J9/20 |
主分类号 |
H01J9/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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