US 2016/0257882 A1 · LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Abstract

To show a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has the nematic phase and contains a specific compound having large dielectric anisotropy as a first component, and may contain a specific compound having a high maximum temperature or small viscosity as a second component, and a specific compound having large dielectric anisotropy as a third component, and a liquid crystal display device includes the composition.

Claims16

Dependent claims

A liquid crystal composition that has a nematic phase and contains at least one compound selected from the group of compounds represented by formula (1) as a first component:

wherein, R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons;
Z1 is a single bond, ethylene or carbonyloxy;
X1, X2, X3, X4, X5, X6, X7 X8 independently hydrogen or fluorine;
and Y1 is fluorine, chlorine, alkyl having 1 to 12 carbons in which at least one of hydrogen is replaced by halogen, or alkoxy having 1 to 12 carbons in which at least one of hydrogen is replaced by halogen.

1 more element

Dependencies are inferred from the claim text.

Liquid crystal composition and liquid crystal display device

Life of this patent

Liquid crystal composition and liquid crystal display device

Life of this patent

Abstract

Claims16