| 摘要 |
There are herein disclosed a fluorovinyl derivative compound represented by the general formula (1) and having characteristics of a liquid crystal, a liquid crystal composition, and a liquid crystal display device formed by using this composition:wherein R1 is an alkyl group having 1 to 18 carbon atoms, and a methylene group in the alkyl group may be substituted by an oxygen atom, a sulfur atom, -CH=CH- or -C=C- and a hydrogen atom in the alkyl group may be substituted a halogen atom or a cyano group; rings A, B and C are each 1,4-cyclohexylene, 1,4-phenylene or the like in which a hydrogen atom in the ring may be substituted by a halogen atom; Z1, Z2 and Z3 are each a single bond, -CH2CH2-, -CH=CH-, -C=C-, -CH2O-, -OCH2-, -(CH2)4-, -(CH2)3-O-, -O-(CH2)3-, -(CH2)2-CH=CH-, -CH=CH-(CH2)2-, -CF2O-, -OCF2-, -CR2=CH-, -CH=CR2- or -CF=CF-, and R2 is an alkyl group having 1 to 5 carbon atoms; X is a hydrogen atom or a fluorine atom; p and q are each 0 or 1; and m is an integer of 0 to 5.
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