发明名称 |
PICTURE DISPLAY DEVICE WITH A CONICAL PORTION HAVING A PARTICULAR WALL THICKNESS |
摘要 |
Picture display device with an evacuated tube comprising, around a longitudinal axis (20), a display window (2), a conical portion (4) and a neck portion (5), said conical portion (4) being connected to an upstanding wall (15) of the display window (2). The conical portion (4) has a reduced wall thickness. The conical portion is preferably provided with a coating (17) having a layer thickness of preferably less than 50 mum. The coating preferably comprises a layer of polyurethane.
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申请公布号 |
US2002079825(A1) |
申请公布日期 |
2002.06.27 |
申请号 |
US19990261845 |
申请日期 |
1999.03.03 |
申请人 |
VAN DEN BRINK JAN P.;KLEINE JAN W. |
发明人 |
VAN DEN BRINK JAN P.;KLEINE JAN W. |
分类号 |
H01J29/86;H01J29/88;(IPC1-7):H01J29/88 |
主分类号 |
H01J29/86 |
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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