发明名称 |
Liquid crystal compound, liquid crystal composition and liquid crystal display device |
摘要 |
A liquid crystal composition is described, satisfying at least one of characteristics such as a high maximum temperature of nematic phase, a low minimum temperature of nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics. An AM LCD device including the liquid crystal composition is also described. The liquid crystal composition has a nematic phase and contains a specific compound having a large dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and may also contain a specific compound having a high maximum temperature or a large dielectric anisotropy as a third component. |
申请公布号 |
US9382479(B2) |
申请公布日期 |
2016.07.05 |
申请号 |
US201214373630 |
申请日期 |
2012.12.28 |
申请人 |
JNC CORPORATION;JNC PETROCHEMICAL CORPORATION |
发明人 |
Yanai Takayoshi;Hattori Norikatsu;Maeda Taketo |
分类号 |
G02F1/1333;C09K19/34;C09K19/44;G02F1/1362;G02F1/137;C09K19/46;C09K19/04;C09K19/12;C09K19/30 |
主分类号 |
G02F1/1333 |
代理机构 |
Jianq Chyun IP Office |
代理人 |
Jianq Chyun IP Office |
主权项 |
1. 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 and at least one compound selected from the group of compounds represented by formula (2) as a second component simultaneously, the second component contains at least one compound selected from the group of compounds represented by formula (2-1): wherein R1 is alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons or alkenyl having 2 to 12 carbons, and R2 and R3 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 hydrogen is replaced by fluorine; ring A and ring B are independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene or 2,5-difluoro-1,4-phenylene; Z1 is independently a single bond, ethylene or carbonyloxy; X1, X2, X3 and X4 are independently hydrogen or fluorine; and m and n are independently 1, 2 or 3. |
地址 |
Tokyo JP |