Matrix display device

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...

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340779, 340784, 350333, G09G 336

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active

044491255

ABSTRACT:
A matrix display device having two groups of row electrodes and a process for the control thereof. This device is constituted by two insulating walls made from a material having several zones distributed in matrix-like manner, a first group of p rows of parallel electrodes covering one of the walls and a second group of q columns of parallel electrodes covering the other wall. A zone x.sub.i y.sub.j is defined by the overlap of row x.sub.i and column y.sub.j in which i varies from l to p and j from l to q. The said device also comprises a third group of p rows of electrodes, identical to the first group and placed on the second group, while being electrically insulated from the latter by an insulating layer.

REFERENCES:
patent: 3666981 (1972-05-01), Lay
patent: 3719940 (1973-03-01), Lay et al.
patent: 3863087 (1975-01-01), Holz
patent: 4099855 (1978-07-01), Wiebey et al.
patent: 4146876 (1979-03-01), Arellano et al.
patent: 4277786 (1981-07-01), Waldron

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