Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1974-11-14
1976-04-20
Rolinec, R. V.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
313217, 315 845, H05B 3700
Patent
active
039522300
ABSTRACT:
In a matrix type gas discharge display device comprising a number of discharge elements at the crossings of the rows and columns of the display matrix, a group of display anodes is disposed at each discharge element by using a corresponding number of insulated wires and by removing insulation of one wire at each discharge element, and such exposed portion is shifted to a successive one of the wires every one of the crossings in a column, so that when the field scanning is made in the column direction, each different anode wire in a group operates successively in cyclic order. The applied scanning voltage is so controlled as to make such successive operation of the anodes. By such a field scanning, each discharge element luminates for a duration which is an integral multiple due to such number, of the duration in the conventional type device provided with only one display anode for each discharge element. The brightness of the displayed picture is increased up to an extent by such integral multiple in a definite and stable manner, and thus noise in the displayed picture can be decreased.
REFERENCES:
patent: 3042823 (1962-07-01), Willard
Dahl Lawrence J.
Nippon Hoso Kyokai
Rolinec R. V.
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