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    • 7. 发明授权
    • Compound having bicyclo[3.3.0]octane-2,6-diyl, liquid crystal composition and liquid crystal display device
    • 具有双环[3.3.0]辛烷-2,6-二基,液晶组合物和液晶显示装置的化合物
    • US08585924B2
    • 2013-11-19
    • US13468888
    • 2012-05-10
    • Masahide Kobayashi
    • Masahide Kobayashi
    • C09K19/34C09K19/52C09K19/06C09K19/32C09K19/00C07C69/74C07C43/00C07C43/02C07C43/20C07C43/30C07C43/32
    • 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。
    • 8. 发明授权
    • Liquid crystal compound, liquid crystal composition and liquid crystal display device
    • 液晶复合物,液晶组合物和液晶显示装置
    • US08580146B2
    • 2013-11-12
    • US13360302
    • 2012-01-27
    • Masahide Kobayashi
    • Masahide Kobayashi
    • C09K19/30C09K19/32C09K19/34C09K19/06C09K19/52C09K19/00C07C19/08C07C22/00C07C25/13C07C41/00C07C43/02C07C43/20
    • C09K19/3048C09K2019/0407C09K2019/0444
    • 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 suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used.The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.
    • 对于热,光等具有高稳定性的液晶化合物,向列相的宽温度范围,小粘度,适当的光学各向异性,大的弹性常数K33,大的负介电各向异性和与 其他液晶化合物。 而且,具有与该化合物相似的特性的液晶组合物。 另外,可以使用该装置的响应时间短,耗电低,驱动电压低,对比度大,温度范围宽的液晶显示装置。 该化合物是具有环己烷环,环己烯环或苯环苯基和丁烯键合基团的组合的2,3-二氟苯衍生物(1)。 液晶组合物包含该化合物,液晶显示装置含有该组合物。