Chlorobenzene derivative, optically isotropic liquid crystal medium, and optical device
AssigneesJnc Corporation, Jnc Petrochemical Corporation
InventorsYasuhiro Haseba, Takafumi Kuninobu
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Abstract
A liquid crystal compound having a large refractive index anisotropy, a large dielectric anisotropy, and a low melting point, and a liquid crystal medium having a liquid crystal phase over a wide temperature range, a large refractive index anisotropy, a large dielectric anisotropy, and having an optically isotropic liquid crystal phase, are provided. The present invention is a liquid crystal compound having a chlorobenzene ring, and a liquid crystal medium characterized by containing the liquid crystal compound and a chiral reagent, and exhibiting an optically isotropic liquid crystal phase.
Claims42
A compound, represented by Formula (1):
- wherein in Formula (1), R1 is hydrogen or a C1-20 alkyl, wherein arbitrary —CH2— in the alkyl may be substituted with —O—, —S—, —COO—, —OCO—, —CH═CH—, —CF═CF— or —C≡C—, and arbitrary hydrogen in the alkyl and the alkyl with arbitrary —CH2— substituted with —O—, —S—, —COO—, —OCO—, —CH═CH—, —CF═CF—, or —C≡C— may be substituted with halogen or a C1-3 alkyl;
- Z1, Z2, Z3, Z4, Z5, and Z6 are independently a single bond or —CF2O—, provided that at least one of Z1, Z2, Z3, Z4, Z5, and Z6 is —CF2O—;
- L1, L2, L3, L4, and L5 are independently hydrogen or fluorine;
- X1 is halogen, —C≡N, —N═C═S, —SF5 or a C1-3 alkyl in which arbitrary hydrogen is substituted with fluorine, and arbitrary —CH2— in the alkyl may be substituted with —O—, —S—, —CH═CH— or —C≡C—;
- and l, m, n, o and p are independently 0 or 1, and 1≦l+m+n+o+p≦3.
A liquid crystal compound, represented by Formula (1-4-3-1), Formula (1-1-2-1), Formula (1-5-3-1), Formula (1-2-2-1) or Formula (1-6-2-1):
- wherein in the formulas, R1 is a C1-20 alkyl or a C2-20 alkenyl.
Dependencies are inferred from the claim text.