Liquid crystal composition and liquid crystal display device
AssigneesChisso Corporation, Chisso Petrochemical Corporation
InventorsMasayuki Saito, Yoshitaka Tomi
Life of this patent
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Abstract
A liquid crystal composition having a negative dielectric anisotropy and containing at least one compound represented by formula (1), at least one compound represented by formula (2), at least one compound represented by formula (4), at least one compound represented by formula (5), and at least one compound represented by formula (6), and the composition essentially consisting of these components: wherein R1, R2, R3 and R4 is, for example, alkyl; A1, A2 and A3 is, for example, 1,4-phenylene; Z1 is a single bond, —CH2O— or —COO—; and Z2 is a single bond or —COO—.
Claims40
A liquid crystal composition having a negative dielectric anisotropy and comprising at least one compound represented by formula (1) as a first component, at least one compound represented by formula (2) as a second component, at least one compound represented by formula (4) as a third component, at least one compound represented by formula (5) as a fourth component, and at least one compound represented by formula (6) as a fifth component:
- wherein R1 is alkyl or alkenyl;
- R2 is alkyl;
- R3 is alkyl or alkoxy;
- R4 is alkyl or alkoxymethyl;
- A1 and A2 are independently 1,4-cyclohexylene or 1,4-phenylene;
- A3 is 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene;
- Z1 is —CH2O— or —COO—;
- and Z2 is a single bond or —COO—.
A liquid crystal composition having a negative dielectric anisotropy and comprising at least one compound represented by formula (1) as a first component, at least one compound represented by formula (2) and at least one compound represented by formula (3) as a second component, at least one compound represented by formula (4) as a third component, at least one compound represented by formula (5) as a fourth component, and at least one compound represented by formula (6) as a fifth component:
- wherein R1 is alkyl or alkenyl;
- R2 is alkyl;
- R3 is alkyl or alkoxy;
- R4 is alkyl or alkoxymethyl;
- A1 and A2 are independently 1,4-cyclohexylene or 1,4-phenylene;
- A3 is 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene;
- Z1 is —CH2O— or —COO—;
- and Z2 is a single bond or —COO—.
A composition having a negative dielectric anisotropy comprising
- (a) a liquid crystal component consisting essentially of at least one compound represented by formula (1) as a first component, at least one compound represented by formula (2) as a second component, at least one compound represented by formula (4) as a third component, at least one compound represented by formula (5) as a fourth component, and at least one compound represented by formula (6) as a fifth component:
- wherein R1 is alkyl or alkenyl;
- R2 is alkyl;
- R3 is alkyl or alkoxy;
- R4 is alkyl or alkoxymethyl;
- A1 and A2 are independently 1,4-cyclohexylene or 1,4-phenylene;
- A3 is 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene;
- Z1 is a single bond, —CH2O— or —COO—;
- and Z2 is a single bond or —COO—;
- and
- (b) at least one non-liquid crystal component.
A composition having a negative dielectric anisotropy comprising
- (a) a liquid crystal component consisting essentially of at least one compound represented by formula (1) as a first component, at least one compound represented by formula (2) and at least one compound represented by formula (3) as a second component, at least one compound represented by formula (4) as a third component, at least one compound represented by formula (5) as a fourth component, and at least one compound represented by formula (6) as a fifth component:
- wherein R1 is alkyl or alkenyl;
- R2 is alkyl;
- R3 is alkyl or alkoxy;
- R4 is alkyl or alkoxymethyl;
- A1 and A2 are independently 1,4-cyclohexylene or 1,4-phenylene;
- A3 is 1,4-cyclohexylene, 1,4-phenylene or 2-fluoro-1,4-phenylene;
- Z1 is a single bond, —CH2O— or —COO—;
- and Z2 is a single bond or —COO—;
- and
- (b) at least one non-liquid crystal component.
Dependencies are inferred from the claim text.