发明名称 |
COLOR CATHODE RAY TUBE WITH A TENSION MASK SUPPORT HAVING AN INCLINED SURFACE |
摘要 |
<p>A front assembly for a color cathode tube is disclosed. The tube faceplate has on its inner surface a centrally disposed screen area for receiving process materials during the spin-application process. The front assembly has a shadow mask support structure secured to the inner surface of the faceplate on opposed sides of the screen area. The structure has a first surface for receiving and securing a foil shadow mask, and a second surface inclined from the first surface to the screen area effective to conduct from the screen area any excess of coating material applied during the spinapplication process. As a result, discontinuities in phosphor application visible to the viewer, and non-adherence of phosphor resulting in wash-off and flake-off, are avoided. An embodiment is also shown in which electrical connection is made between a mask support structure and a screen.</p> |
申请公布号 |
CA1274271(A) |
申请公布日期 |
1990.09.18 |
申请号 |
CA19870530030 |
申请日期 |
1987.02.18 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
DOUGHERTY, LAWRENCE W.;STRAUSS, PAUL |
分类号 |
H01J9/227;H01J29/07;(IPC1-7):H01J29/07;H01J29/88 |
主分类号 |
H01J9/227 |
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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