发明名称 |
Liquid crystal composition and liquid crystal display device |
摘要 |
To provide a liquid crystal composition satisfying at least one characteristic including a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a large optical anisotropy, dielectric anisotropy and 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 and contrast ratio and a long life; a liquid crystal composition has a negative dielectric anisotropy and contains a compound having a low minimum temperature as a first component and a compound having a large negative dielectric anisotropy as a second component, and may contain a compound having a small viscosity as a third component and a compound having a large negative dielectric anisotropy as a fourth component, and a liquid crystal display device containing the composition. |
申请公布号 |
US8920674(B2) |
申请公布日期 |
2014.12.30 |
申请号 |
US201213617096 |
申请日期 |
2012.09.14 |
申请人 |
JNC Corporation;JNC Petrochemical Corporation |
发明人 |
Yanai Takayoshi;Hattori Norikatsu;Tanaka Hiroyuki |
分类号 |
C09K19/30;C09K19/52;C09K19/06;C09K19/34;C09K19/32;C09K19/20;C09K19/12;C09K19/02;C09K19/42;C09K19/54;C09K19/04 |
主分类号 |
C09K19/30 |
代理机构 |
Hogan Lovells US LLP |
代理人 |
Hogan Lovells US LLP |
主权项 |
1. A liquid crystal composition that has a negative dielectric anisotropy and contains at least one compound selected from the group of compounds represented by formula (1) as a first component and at least one compound selected from the group of compounds represented by formula (2-1) to formula (2-17) as a second component: wherein R1, R2, R3 and R4 are independently 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 at least one of hydrogen is replaced by fluorine and m is an integer from 1 to 20. |
地址 |
Tokyo JP |