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US 7,981,486 B2Granted
Compound having alkyl on benzene ring, liquid crystal composition having the compound, and liquid crystal display device having the liquid crystal composition
AssigneesJnc Corporation, Chisso Petrochemical Corporation
InventorYasuyuki Sasada
Life of this patent
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Abstract
A compound represented by the following formula (1), a liquid crystal composition containing the compound and a liquid crystal display device containing the composition: all the symbols in the formula (1) are defined in the specification.
Claims30
A compound represented by the following formula (1):
- wherein Ra and Rb are independently alkyl having from 1 to 20 carbons, wherein arbitrary —CH2— in the alkyl may be replaced by —O—, —S—, —CO— or —SiH2—, arbitrary —(CH2)2— may be replaced by —CH═CH— or —C═C—, and wherein arbitrary hydrogen may be replaced by halogen;
- wherein ring A1 is independently 1,4-cyclohexylene, 1,4-phenylene, pyridine-2,5-diyl, pyridazine-3,6-diyl, decahydronaphthalene-2,6-diyi, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or naphthalene-2,6-diyl, wherein arbitrary —CH2— in each of A1 may be replaced by —O—, —S—, —CO— or —SiH2—, and wherein arbitrary —(CH2)2— in each of A1 may be replaced by —CH═CH—, and wherein arbitrary hydrogen in each of A1 may be replaced by halogen, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 or —OCH2F;
- wherein Z1 is independently a single bond or alkylene having from 1 to 4 carbons, wherein arbitrary —CH2— in the alkylene may be replaced by —O—, —S—, —CO— or —SiH2—, wherein arbitrary —(CH2)2— in the alkylene may be replaced by —CH═CH— or and wherein arbitrary hydrogen may be replaced by halogen;
- wherein W is alkylene having from 2 to 4 carbons, wherein arbitrary —CH2— in the alkylene may be replaced by —O—, —S—, —CO— or —SiH2—, wherein arbitrary —(CH2)2— in the alkylene may be replaced by —CH═CH— or —C≡C—, and wherein arbitrary hydrogen may be replaced by halogen;
- wherein Y1 is independently hydrogen, halogen, —CN, —CF3, —CHF2, —CH2F, —CF3, —OCHF2 or —OCH2F, but wherein at least one of Y1 is chlorine, —CF3, —CHF2, —CH2F, —OCF3, —OCHF2 or —OCH2F;
- wherein Rc is alkyl having from 1 to 4 carbons;
- and
- wherein m is independently 0, 1 or 2;
- but wherein the sum of plural numbers of m is 0, 1 or 2.
6 more elements
A compound represented by any one of the following formulae (1-1) to (1-6):
- wherein Ra and Rb are independently alkyl having from 1 to 10 carbons, wherein arbitrary —CH2— in the alky may be replaced by —O—, wherein arbitrary —(CH2)2— in the alky may be replaced by —CH═CH— or —C≡C—, and wherein arbitrary hydrogen may be replaced by halogen;
- wherein ring A1 is independently 1,4-cyclohexylene, 1,4-phenylene, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or naphthalene-2,6-diyl, wherein arbitrary —CH2— in each of A1 may be replaced by —O—, and wherein arbitrary —(CH2)2— in each of A1 may be replaced by —CH═CH—, and wherein arbitrary hydrogen in each of A1 may be replaced by halogen, —CF3, —CHF2 or —CH2F;
- wherein Z1 is independently a single bond or alkylene having from 1 to 4 carbons, wherein arbitrary —CH2— in the alkylene may be replaced by —O— or —CO—, wherein arbitrary —(OH2)2— in the alkylene may be replaced by —CH═CH—or and wherein arbitrary hydrogen may be replaced by halogen;
- wherein W is —(CH2)2—, —COO—, —OCO—, —CH2—, —OCH2—, —CH═CH—, —CF═CF—, —C≡C—, —CF2O—, —OCF2—, —(CH2)2COO—, —OCO(CH2)2—, —(CH2)3O—, —O(CH2)3—, —(CH2)2CF2O—, —OCF2(CH2)2— or —(CH2)4—;
- wherein Y1 is independently hydrogen, halogen, —CF3, —CHF2 or —CH2F, but wherein at least one of Y1 is chlorine, —CF3, —CHF2 or —CH2F;
- and
- wherein Rc is alkyl having from 1 to 4 carbons, wherein arbitrary —CH2— in the alkyl may be replaced by —O—, and wherein arbitrary —(CH2)2— in the alkyl may be replaced by —CH═CH— or —C≡C—.
4 more elements
A compound represented by any one of the following formulae (I) to (IX):
- wherein Ra and Rb are independently alkyl having from 1 to 10 carbons, wherein arbitrary —CH2— in the alkyl may be replaced by —O—, and wherein arbitrary —(CH2)2— in the alkyl may be replaced by —CH═CH—;
- wherein Z1 is independently a single bond, —(CH2)2—, —COO—, —OCO—, —CH2O—, —OCH2—, —CF2O—, —OCF2—, —CH═CH—, —CF═CF—, —C≡C—, —(CH2)2COO—, —OCO(CH2)2—, —(CH2)2CF2O—, —(CH2)3O—, —O(CH2)3— or —(CH2)4—;
- wherein W is —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2—, —CH═CH— or —C≡C—;
- and
- wherein Y1 is independently hydrogen, fluorine, chlorine, —CF3 or —CF2H, but wherein at least one of Y1 is chlorine, —CF3, or —CF2H.
2 more elements
Dependencies are inferred from the claim text.