Bistable liquid crystal display utilizing priming voltages

Details Bistable liquid crystal display utilizing priming voltages Bistable liquid crystal display utilizing priming voltages

1986-03-21

1988-01-05

Miller, Stanley D.

Communications: electrical

Land vehicle alarms or indicators

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

340784, 350346, G02F 1137, G09G 336

Patent

active

047172436

ABSTRACT:
Threshold electric fields required to achieve high speed matrix addressing of selected cells in a bistable nematic liquid crystal storage display are reduced by employing a short duration, priming pulse signal in accordance with the principles of the invention. The short priming pulse signal applied to a selected cell modifies the binding energy for disclinations attached to sites of orientational discontinuity, thereby changing the threshold field required for electrical switching between bistable states. Threshold reduction also depends on the AC frequency and duration of a writing pulse signal applied to the selected cell subsequent to the priming pulse signal.

REFERENCES:
patent: 3806230 (1974-04-01), Haas
patent: 3936815 (1976-02-01), Kogure
patent: 4139273 (1979-02-01), Crossland et al.
patent: 4158860 (1979-06-01), Irie
patent: 4239348 (1980-12-01), Berreman et al.
patent: 4333708 (1982-06-01), Boyd et al.
patent: 4367924 (1983-01-01), Clark et al.
patent: 4400060 (1983-08-01), Cheng
J. Cheng et al., "Threshold and Switching Characteristics of a Bistable Nematic Liquid-Crystal Storage Display," Appl. Phys. Lett., 37(12), pp. 1072-1074, (1980).
G. D. Boyd et al., "Liquid-Crystal Orientational Bistability and Nematic Storage Effects," Appl. Phys. Lett. 36(7), pp. 556-558 (1980).
J. Cheng, "Surface Pinning of Disclinations and the Stability of Bistable Nematic Storage Displays," J. Appl. Phys., 52(2) pp. 724-727 (1981).

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