LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

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

主权项

1. A liquid crystal composition containing at least one compound selected from the group of compounds represented by formula (1) as a first component: wherein R1, R2, R3, R4, R5 and R6 are independently hydrogen, halogen, hydroxy, —CH2OH, —SF5, —NO2, P-Sp- or alkyl having 1 to 30 carbons, the alkyl is straight-chain, branched-chain or cyclic, the alkyl may have an unsaturated bond, and in the alkyl, at least one of non-adjacent —CH2— may be replaced by —O—, —S—, —CO—, —CO—O— or —O—CO—, and in the groups, at least one of hydrogen may be replaced by halogen; P is a polymerizable group; Sp is a single bond or alkylene having 1 to 20 carbons, and in the alkylene, at least one of hydrogen may be replaced by halogen or —CN, and in the groups, at least one of non-adjacent —CH2— may be independently replaced by —O—, —S—, —NH—, —NR7—, —SiR7R8—, —CO—, —COO—, —OCO—, —OCO—O—, —S—CO—, —CO—S—, —NR7—CO—O—, —O—CO—NR7—, —NR7—CO—NR8—, —CH═CH— or —C≡C—; at least one of R1, R2, R3, R4, R5 and R6 is P-Sp-; Z1, Z2, Z3, Z4, Z5 and Z6 are independently a single bond, —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O— or alkylene having 1 to 12 carbons; Z7 is independently —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —(CR7R8)m—, —(CR7═CR8)m—, —C≡C—, —CR7═CR8—CO—O—, —O—CO—CR7═CR8—, —CO—NR7—, —NR7—CO—, —CO—S—, —S—CO—, —O—CO—CR7—CR8—O—, —O—CR7—CR8—CO—O—, —CR7═CR8—CO—, —CO—CR7═CR8—, —C(═CR7R8)—, —O—CO—CR7R8—CR9R10—O—, —O—CR7R8—CR9R10—CO—O— or a single bond; R7, R8, R9 and R10 independently hydrogen, halogen or alkyl having 1 to 12 carbons, the alkyl is straight-chain, branched-chain or cyclic, the alkyl may have an unsaturated bond, and in the alkyl, at least one of non-adjacent —CH2— may be replaced by —O—, —S—, —CO—, —CO—O—, or —O—CO—, and in the groups, at least one of hydrogen may be replaced by halogen; m is 1, 2, 3 or 4; and n is an integer from 1 to 12.