LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
    65.
    发明申请
    LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE 有权
    液晶化合物,液晶组合物和液晶显示装置

    公开(公告)号:US20120018672A1

    公开(公告)日:2012-01-26

    申请号:US13140021

    申请日:2010-01-12

    摘要: The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33, and further having a suitable negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition including this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition.A liquid crystal compound represented by formula (a): For example, Ra and Rb are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons or alkoxy having 1 to 9 carbons; the ring A1 and the ring A2 are 1,4-phenylene or trans-1,4-cyclohexylene; L1, L2, L3 and L4 are hydrogen or fluorine, and at least three of them are fluorine; and Z1 and Z2 are a single bond, —(CH2)2—, —CH═CH—, —CH2O— or —OCH2—.

    摘要翻译: 本发明提供了对热,光等具有高稳定性,向列相的宽温度范围,小粘度,大的光学各向异性和合适的弹性常数K33的液晶化合物,并且还具有合适的负电介质 各向异性和与其他液晶化合物的良好相容性。 本发明还提供一种包含该液晶化合物的液晶组合物和含有该液晶组合物的液晶显示装置。 由式(a)表示的液晶化合物:例如,Ra和Rb是碳数1〜10的烷基,碳原子数2〜10的烯基或碳原子数1〜9的烷氧基。 环A1和环A2是1,4-亚苯基或反-1,4-亚环己基; L1,L2,L3和L4是氢或氟,并且其中至少三个是氟; 且Z 1和Z 2为单键, - (CH 2)2 - , - CH = CH - , - CH 2 O-或-OCH 2 - 。