Liquid Crystal composition and liquid crystal display device
AssigneesJnc Corporation, Chisso Petrochemical Corporation
InventorMasayuki Saito
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Abstract
The invention is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.
Claims18
A liquid crystal composition having a nematic phase that comprises two components, wherein the first component is at least one compound selected from the group of compounds represented by formulas (1-1), (1-3), (1-4), (1-5), (1-6), (1-7), (1-8) and (1-9), the second, component is at least one compound selected from the group of compounds represented by formula (2):
- wherein R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons, or alkenyl having 2 to 12 carbons in which arbitrary hydrogen is replaced by fluorine;
- R2 and R3 are each independently alkenyl having 2 to 12 carbons;
- X1, X2, X3 , X4 , X5 , X6 , X7, X8 and X9 are each independently hydrogen or fluorine;
- Y1 is fluorine, chlorine or trifluoromethoxy.
Dependencies are inferred from the claim text.