发明名称 |
Flat picture display device |
摘要 |
A picture display device includes an envelope having a faceplate, having an inner surface formed with a phosphor screen, and a back covering coupled to the faceplate to define an evacuated chamber; filament-like cathode electrodes and electron beam control electrodes disposed within the evacuated chamber for emitting electron beams towards the phosphor screen; a cathode electrode support member for retaining the cathode electrodes and having one of opposite surfaces held in contact therewith; a shape retention plate for retaining at least the cathode electrodes and the support member in a predetermined curved shape; a plurality of support struts for fixing the shape retention plate in a face-to-face relationship with the phosphor screen; and a reinforcement grid structure disposed in contact with a surface of the shape retention plate opposite that facing the phosphor screen so as to follow the curvature of the shape retention plate.
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申请公布号 |
US5183425(A) |
申请公布日期 |
1993.02.02 |
申请号 |
US19920833723 |
申请日期 |
1992.02.11 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SHIRATORI, TETSUYA;YAMAZAKI, FUMIO;TANIGUCHI, SEIICHI |
分类号 |
H01J1/18;H01J29/46;H01J31/12 |
主分类号 |
H01J1/18 |
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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