Electro optical display device with redundant switching means

Details Electro optical display device with redundant switching means Electro optical display device with redundant switching means

1988-06-16

1991-02-19

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

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

340719, 340765, 350333, G09G 336

Patent

active

049947966

ABSTRACT:
In a picture display device driven with an active matrix the voltage across the picture elements is accurately adjusted by discharging or charging the associated capacitances, if necessary, first to beyond the transition range in the transmission/voltage characteristic. Redundancy is advantageously used in the switching units employed for this purpose.

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patent: 4223308 (1980-09-01), Baraff et al.
patent: 4251136 (1981-02-01), Miner et al.
patent: 4641135 (1987-02-01), Hilbrink
patent: 4728172 (1988-03-01), Cannella
patent: 4731610 (1988-03-01), Baron et al.
patent: 4748445 (1988-05-01), Togashi et al.
patent: 4794385 (1988-12-01), Kuigk
patent: 4810051 (1989-03-01), Kuijk

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