Method of driving a passive ferro-electric liquid crystal displa

Details Method of driving a passive ferro-electric liquid crystal displa Method of driving a passive ferro-electric liquid crystal displa

1990-11-09

1991-09-10

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340805, G09G 336

Patent

active

050477587

ABSTRACT:
In a method of driving a passive ferro-electric display device the selection voltages, "blanking" voltages and data voltages are given a bipolar character so that the values of the data voltages with respect to the "blanking" voltage can be chosen to be so low that there is substantially no crosstalk. In a passive display device this provides the possibility of driving large numbers of lines (for example, for LCD-TV) while maintaining the contrast.

REFERENCES:
patent: 4638310 (1987-01-01), Agliffe
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patent: 4709995 (1987-12-01), Kuribayashi et al.
patent: 4712877 (1987-12-01), Okada et al.
patent: 4728947 (1988-03-01), Agliffe et al.
patent: 4773716 (1988-09-01), Nakanowatari
patent: 4800382 (1989-01-01), Okada et al.
patent: 4915477 (1990-04-01), Ohta et al.

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