Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1993-04-26
1994-09-13
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
313422, 313495, G09G 310
Patent
active
053471997
ABSTRACT:
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.
REFERENCES:
patent: 4069439 (1978-01-01), Anderson
patent: 4099079 (1978-07-01), Knapp
patent: 4719388 (1988-12-01), Oess
patent: 4879496 (1989-11-01), Knapp et al.
patent: 4881005 (1989-11-01), Morimoto et al.
Ljamitscher "Device for displaying information with flat screens", M. Radio & Communication 1983 pp. 37,36,30,135,147,154,160 and 165.
Trompenaars Petrus H. F.
Van Gorkom Gerardus G. P.
Vrijssen Gerardus A. H. M.
Kraus Robert J.
Pascal Robert J.
Shingleton Michael B.
U.S. Philips Corporation
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