Antiferroelectric liquid crystal display element exhibiting a pr

Details Antiferroelectric liquid crystal display element exhibiting a pr Antiferroelectric liquid crystal display element exhibiting a pr

1993-12-17

1997-05-20

Sikes, William L.

Liquid crystal cells, elements and systems

With specified nonchemical characteristic of liquid crystal...

Within smectic phase

349172, G02F 11343

Patent

active

056317522

ABSTRACT:
Pixel electrodes and active elements for supplying data signals to the pixel electrodes in accordance with control signals are formed on one of a pair of opposing transparent substrates, and a counter electrode is formed on the other substrate. An antiferroelectric liquid crystal having a small difference between a voltage for changing liquid crystal molecules from the first or second ferroelectric phase to an antiferroelectric phase as an intermediate aligned state between the first and second ferroelectric phase and a voltage for changing the liquid crystal molecules from the antiferroelectric phase to the first or second ferroelectric phase and having optical characteristics changing along a curve in accordance with the applied voltage is sealed between the substrates.

REFERENCES:
patent: 5151804 (1992-09-01), Verhulst et al.
patent: 5200846 (1993-04-01), Hiroki et al.
patent: 5207947 (1993-05-01), Suzuki et al.
patent: 5214523 (1993-05-01), Nito et al.
patent: 5349367 (1994-09-01), Wakita
patent: 5353136 (1994-10-01), Escher et al.
"Trustable Switching in Surface Stabilized Ferroelectric Liquid Crystals with a Large Spontaneous Polarization", Chandoni et al, May 1988 Japanese Journal of Applied Physics.

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