Liquid crystal composition and liquid crystal display device
AssigneesChisso Corporation, Chisso Petrochemical Corporation
InventorsMotoki Yanai, Shuichi Goto
Life of this patent
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Abstract
A liquid crystal composition having a nematic phase that includes a compound represented by Formula (1), a compound represented by Formulas (2-1) and (2-2), and a compound represented by Formulas (3-1) and (3-2), and a liquid crystal display device containing the composition: wherein, for example, R1 is alkenyl having approximately 2 to approximately 12 carbons; R2 is alkyl having approximately 1 to approximately 12 carbons; Y1 is fluorine or chlorine; Y2 is fluorine or trifluoromethoxy; X1 and X2 are each independently hydrogen or fluorine; and Z1 and Z2 are each independently a single bond or —CH2CH2—.
Claims16
A liquid crystal composition having a nematic phase comprising three components, wherein the first component is at least one compound selected from the group of compounds represented by Formula (1), the second component is at least one compound selected from the group of compounds represented by Formulas (2-1) and (2-2), and the third component is at least one compound selected from the group of compounds represented by Formulas (3-1) and (3-2):
- wherein R1 is alkenyl having approximately 2 to approximately 12 carbons, alkadienyl having approximately 4 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons, arbitrary hydrogen of which is replaced by fluorine;
- R2 is alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons;
- Y1 is fluorine or chlorine;
- Y2 is fluorine or trifluoromethoxy;
- X1 and X2 are each independently hydrogen or fluorine;
- and Z1 and Z2 are each independently a single bond or —CH2CH2—.
A liquid crystal composition having a nematic phase comprising four components, wherein the first component is at least one compound selected from the group of compounds represented by Formula (1), the second component is at least one compound selected from the group of compounds represented by Formulas (2-1) and (2-2), the third component is at least one compound selected from the group of compounds represented by Formulas (3-1) and (3-2), and the fourth component is at least one compound selected from the group of compounds represented by Formula (4):
- wherein R1 is alkenyl having approximately 2 to approximately 12 carbons, alkadienyl having approximately 4 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons, arbitrary hydrogen of which is replaced by fluorine;
- R1 is alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons;
- R3 and R4 are each independently alkyl having approximately 1 to approximately 12 carbons, alkoxy having approximately 1 to approximately 12 carbons, alkoxyalkyl having approximately 2 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons;
- Y1 is fluorine or chlorine;
- Y2 is fluorine or trifluoromethoxy;
- X1, X2 and X3 are each independently hydrogen or fluorine;
- and Z1 and Z2 are each independently a single bond or —CH2CH2—.
A liquid crystal composition having a nematic phase comprising five components, wherein the first component is at least one compound selected from the group of compounds represented by Formula (1), the second component is at least one compound selected from the group of compounds represented by Formulas (2-1) and (2-2), the third component is at least one compound selected from the group of compounds represented by Formulas (3-1) and (3-2), the fourth component is at least one compound selected from the group of compounds represented by Formula (4), and the fifth component is at least one compound selected from the group of compounds represented by Formula (5):
- wherein R1 is alkenyl having approximately 2 to approximately 12 carbons, alkadienyl having approximately 4 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons, arbitrary hydrogen of which is replaced by fluorine;
- R2 is alkyl having approximately 1 to approximately 12 carbons or alkenyl having approximately 2 to approximately 12 carbons;
- R3 and R4 are each independently alkyl having approximately 1 to approximately 12 carbons, alkoxy having approximately 1 to approximately 12 carbons, alkoxyalkyl having approximately 2 to approximately 12 carbons, or alkenyl having approximately 2 to approximately 12 carbons;
- Y1 is fluorine or chlorine;
- Y2 is fluorine or trifluoromethoxy;
- X1, X2, X3, X4, X5 and X6 are each independently hydrogen or fluorine, provided that at least one of X4, X5 and X6 is fluorine;
- and Z1 and Z2 are each independently a single bond or —CH2CH2—.
Dependencies are inferred from the claim text.