Double density display drive system

Details Double density display drive system Double density display drive system

1980-07-21

1982-03-23

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

3151693, 340752, G09G 332

Patent

active

043215980

ABSTRACT:
A display system utilizing an array of display cells each of which includes a pair of oppositely polarized display elements connected in parallel. One or the other of the display elements in a selected display cell is energized by controlling the direction of current flow through the display cell.

REFERENCES:
patent: 3714374 (1973-01-01), Sobez
patent: 3987392 (1976-10-01), Kugelmann et al.
patent: 4183021 (1980-01-01), Gerstner
patent: 4271408 (1981-06-01), Teshima et al.

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