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1. A liquid crystal composition comprising a first component that is at least one compound represented by General Formula (I-a)(where R11 and R12 each represent an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms; in each of the alkyl and alkenyl groups, —CH2— or at least two —CH2—'s not adjoining each other are each independently optionally substituted with —O— or —S—, and one or more hydrogen atoms are each independently optionally substituted with a fluorine atom or a chlorine atom;
L11 and L12 each represent —OCH2—, —CH2O—, —CF2O—, —OCF2—, —CH2CH2—, —CF2CF2—, or a single bond; in the case where L11 and L12 are multiple, the multiple L11's may be the same as or different from each other, and the multiple L12's may be the same as or different from each other; m11 and m12 each independently represent 0, 1, or 2; m11+mt2 is 1, 2, or 3; the rings A1 and B1 each independently represent a trans-1,4-cyclohexylene group, a 1,4-phenylene group, a 2-fluoro-1,4-phenylene group, a 3-fluoro-1,4-phenylene group, a 3,5-difluoro-1,4-phenylene group, a 2,3-difluoro-1,4-phenylene group, a 1,4-cyclohexenylene group, a 1,4-bicyclo[2.2.2]octylene group, a piperidine-1,4-diyl group, a naphthalene-2,6-diyl group, a decahydronaphthalene-2,6-diyl group, or a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group; in the case where the rings A1 and/or B1 are multiple, the multiple rings A1 may be the same as or different from each other, and the multiple rings B1 may be the same as or different from each other, the rings A1 and B1 are each independently optionally substituted with an alkyl group having 1 to 12 carbon atoms, a halogenated alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogenated alkoxy group having 1 to 12 carbon atoms, a halogen, a cyano group, or a nitro group; and at least one of R11 and R12 represents an alkenyl group having 2 to 8 carbon atoms) and a second component that is at least one compound represented by General Formula (I-b) (where R13 and R14 each represent an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms; in each of the alkyl and alkenyl groups, —CH2— or at least two —CH2—'s not adjoining each other are each independently optionally substituted with —O— or —S—, and one or more hydrogen atoms are each independently optionally substituted with a fluorine atom or a chlorine atom; L13 represents —OCH2—, —CH2O—, —CF2O—, —OCF, —CH2CH2—, —CF2CF2—, or a single bond; the rings C1 and D1 each independently represent a trans-1,4-cyclohexylene group, a 1,4-phenylene group, a 2-fluoro-1,4-phenylene group, a 3-fluoro-1,4-phenylene group, a 3,5-difluoro-1,4-phenylene group, a 2,3-difluoro-1,4-phenylene group, a 1,4-cyclohexenylene group, a 1,4-bicyclo[2.2.2]octylene group, a piperidine-1,4-diyl group, a naphthalene-2,6-diyl group, a decahydronaphthalene-2,6-diyl group, or a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group; and the rings C1 and D1 are each independently optionally substituted with an alkyl group having 1 to 12 carbon atoms, a halogenated alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, a halogenated alkoxy group having 1 to 12 carbon atoms, a halogen, a cyano group, or a nitro group), wherein the amount of a compound as the second component in which each of R13 and R14 is not an alkenyl group having 2 to 8 carbon atoms is in the range of 90 to 100 mass %. |
