Compounds for ferroelectric liquid crystal devices

Details Compounds for ferroelectric liquid crystal devices Compounds for ferroelectric liquid crystal devices

C - Chemistry, Metallurgy

09

K

31/105

C09K 19/02 (2006.01) C09K 19/12 (2006.01) C09K 19/20 (2006.01) C09K 19/22 (2006.01) C09K 19/30 (2006.01) C09K 19/32 (2006.01) C09K 19/42 (2006.01) C09K 19/50 (2006.01)

Patent

CA 1277133

ABSTRACT OF THE DISCLOSURE Ferroelectric smectic liquid crystal mixtures are provided consisting of two constituents; a smectic host and another containing a chiral compound in which rotation of the chiral centre relative to the molecular core is sterically hindered, so that the chiral compound induces a high Ps in the mixture. A preferred class of chiral compounds is those derived from naturally occurring compounds with chiral groups, especially .alpha.-hydroxycarboxylic acids, amino acids and terpenoids, e.g. with chiral groups; Image The chiral group is incorporated into a compound containing a mesogenic combination of groups, e.g., with chains of cyclic groups and some mesogenic combinations are described.

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