发明名称 |
Thin-type picture display device with means for effecting electron transport by secondard emission |
摘要 |
Picture display device having a vacuum envelope with a front wall supporting a luminescent screen at its inner side and a rear wall at a short distance therefrom, connected by side walls. The envelope accommodates a plurality of adjacent electron sources and juxtaposed, local electron ducts cooperating with these sources and having walls of substantially electrically insulating material having a secondary emission coefficient which is suitable for transporting, through vacuum, produced electrons in the form of electron currents. Means are provided to make each electron current substantially travel along a particular wall of its electron duct, as well as means for withdrawing each electron current at predetermined locations from its duct and directing it towards the luminescent screen for producing a picture composed of pixels.
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申请公布号 |
US5347199(A) |
申请公布日期 |
1994.09.13 |
申请号 |
US19930053980 |
申请日期 |
1993.04.26 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
VAN GORKOM, GERARDUS G. P.;TROMPENAARS, PETRUS H. F.;VRIJSSEN, GERARDUS A. H. M. |
分类号 |
G09G1/20;H01J29/08;H01J31/12;H04N5/70;H04N9/12;(IPC1-7):G09G3/10 |
主分类号 |
G09G1/20 |
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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