Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1977-04-01
1978-09-05
Demeo, Palmer C.
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313220, 313493, H01J 61067, H01J 6130, H01J 6142
Patent
active
041123298
ABSTRACT:
A gas discharge display device comprising a gas-filled, -gas-tight enclosure, an insulating matrix member dividing the housing into two chambers and comprising an insulating plate having a plurality of apertures therethrough, arranged in an array of rows and columns corresponding in number to a desired number of image points, a cathode electrode disposed in one chamber and extending parallel with the matrix plate, and a luminescent screen electrode disposed in the other chamber, a plurality of anode conductors disposed on the side of the plate facing said cathode electrode, and a plurality of control conductors disposed on the side of the plate facing the luminescent screen electrode. Each of the conductors extend around the edges of the associated apertures, with each of the conductors on one side being associated with a row of apertures, and each of the conductors on the other side being associated with a column of apertures. The cathode electrode is so disposed that a gas discharge can burn in the discharge chamber, and the luminescent screen electrode is disposed sufficiently close to the adjacent conductors on the matrix member, that even a few kV applied to such screen electrode cannot trigger any undesired gas discharge, with the effective size of the apertures in the control conductors adjacent the screen electrode being less than that of the corresponding apertures in the anode conductors adjacent the cathode electrode. The apertures preferably are elongated, for example oval or slot-shaped, and the holes in the control electrodes may be provided with cross bars subdividing such apertures. Various supporting structures for maintaining the components in rigid operation positions may be provided.
REFERENCES:
patent: 3622829 (1971-11-01), Watanabe
patent: 3956667 (1976-05-01), Veith
DeMeo Palmer C.
Siemens Aktiengesellschaft
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