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    • 8. 发明申请
    • COMPOUND HAVING BICYCLO[3.3.0]OCTANE-2,6-DIYL, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
    • 化合物BICYCLO [3.3.0]二甲苯-2,6-二氯乙烯,液晶组合物和液晶显示装置
    • US20120286200A1
    • 2012-11-15
    • US13468888
    • 2012-05-10
    • Masahide KOBAYASHI
    • Masahide KOBAYASHI
    • C09K19/32C09K19/54C09K19/34C07C43/225C07C69/753
    • C09K19/32
    • A liquid crystal compound having a high stability to heat, light or the like, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds, and a liquid crystal composition including this compound, and a liquid crystal display device containing this composition. A compound represented by formula (1-1). In the formula, for example, R1 and R2 are alkyl having 1 to 10 carbons or alkoxy having 1 to 9 carbons; ring A1 and ring A2 are 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Z1 and Z2 are a single bond or —(CH2)2—; >W1—W2— and >W4—W3— are >CH—CH2— or >C═CH—; and m and n are 0, 1 or 2, and the sum of m and n is 1 or 2.
    • 对于热,光等具有高稳定性的液晶化合物,高透明点,液晶相的最低最低温度,小粘度,适当的光学各向异性,大的负介电各向异性,适合的弹性常数 与其它液晶化合物的优异相容性,以及包含该化合物的液晶组合物和含有该组合物的液晶显示装置。 由式(1-1)表示的化合物。 在该式中,例如,R 1和R 2为碳数为1〜10的烷基或碳数为1〜9的烷氧基, 环A1和环A2是1,4-亚环己基,1,4-亚苯基或2,3-二氟-1,4-亚苯基; Z 1和Z 2是单键或 - (CH 2)2 - ; > W1-W2-和> W4-W3-是> CH-CH2-或> C = CH-; m和n分别为0,1或2,m与n的和为1或2。