Display device having a matrix of gas discharge display elements

Details Display device having a matrix of gas discharge display elements Display device having a matrix of gas discharge display elements

1977-09-22

1979-10-16

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

3151694, 340768, 340771, H01J 1748

Patent

active

041715241

ABSTRACT:
In a matrix of display elements arranged in rows and columns having row scanning and column selection, all display elements which are connected to a scanned row conductor are always ignited such that the non-selected display elements of that row receive a low quiescent current through quiescent current supply circuits in the column selection circuits and the selected display elements receive a higher display current through selection circuits in the column selection circuits.
The low quiescent currents reduce the ignition-voltage required for the next following row to be scanned while a high contrast is produced between the selected and non-selected display elements.

REFERENCES:
patent: 3919591 (1975-11-01), Criscimagna
patent: 3969718 (1976-07-01), Strom
patent: 4053812 (1977-10-01), Kaji et al.

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