Ferroelectric liquid crystal device

Details Ferroelectric liquid crystal device Ferroelectric liquid crystal device

G - Physics

02

F

345/8

G02F 1/137 (2006.01) G02F 1/133 (2006.01) G09G 3/18 (2006.01)

Patent

CA 1279918

ABSTRACT OF THE DISCLOSURE A ferroelectric liquid crystal device comprising a pair of substrates each provided with an electrode thereon, and a ferroelectric liquid crystal layer disposed between the substrates in a thickness which is thin enough to release the spiral structure of the ferroelectric liquid crystal, wherein the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2.theta. there- between, each average molecular axis direction corresponding to one of two stable orientation states of the ferroelectric liquid crystal, the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2 ? therebetween when voltages exceeding the threshold voltage of the ferroelectric liquid crystal are applied to the ferroelectric liquid crystal, and the ferroelectric liquid crystal provides two average molecular direc- tions forming an angle 2.theta.a therebetween after applying an alternating electric field to the ferroelectric liquid crystal and removing the electric field, the angles .theta., ? and .theta.a satisfying the relationships of: .theta. < .theta.a ? ?.

615537

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