Liquid crystal apparatus and driving method therefor

Details Liquid crystal apparatus and driving method therefor Liquid crystal apparatus and driving method therefor

1991-10-15

1992-08-04

Hille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359104, 340805, G02F 113

Patent

active

051364085

ABSTRACT:
A liquid crystal apparatus, includes a liquid crystal device comprising a matrix electrode structure including scanning electrodes and data electrodes intersecting each other and forming a pixel at each intersection, and a ferroelectric liquid crystal having a negative dielectric anisotropy disposed between the scanning electrodes and the data electrodes; and means for applying to a pixel on a selected scanning electrode a bipolar pulse for causing a conversion of one optical state to the optical state of the pixel, the bipolar data pulse including a unit pulse of one polarity which has a duration set to be shorter than a minimum value .tau..sub.min of a current response time .tau..sub.0.

REFERENCES:
patent: 4413256 (1983-11-01), Yasuda et al.
patent: 4844590 (1989-07-01), Okada et al.
patent: 4904064 (1990-02-01), Lagerwall et al.
patent: 4932759 (1990-06-01), Toyono et al.

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