Ferroelectric liquid crystal cell

Details Ferroelectric liquid crystal cell Ferroelectric liquid crystal cell

1989-11-08

1992-01-07

James, Andrew J.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359103, G02F 113

Patent

active

050784773

ABSTRACT:
A ferroelectric liquid crystal cell comprising a ferroelectric liquid crystal having an antiferro-electric phase (S.sub.m C.sub.A.sup.*) or its composition and a pair of substrates having electrodes and holding said liquid crystal or its composition therebetween, characterized in that the layer structure of said liquid crystal in the antiferro-electric phase (S.sub.m C.sub.A.sup.*) has once been changed from a chevron structure to a bookshelf structure by application of a voltage to the electrodes.

REFERENCES:
patent: 4867539 (1989-09-01), Goodby et al.

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