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    • 2. 发明申请
    • LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
    • 液晶化合物,液晶组合物和液晶显示装置
    • US20140077131A1
    • 2014-03-20
    • US14023044
    • 2013-09-10
    • Yasuyuki SASADA
    • Yasuyuki SASADA
    • C09K19/30
    • C09K19/3066C07C43/20C09K19/12C09K19/14C09K19/16C09K19/18C09K19/20C09K19/3001C09K2019/0459C09K2019/0466C09K2019/0481
    • The invention provides a liquid crystal compound represented by formula (1): wherein, in formula (I), for example, R1 is fluorine, chlorine, or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH2— may be replaced by —O—, —S—, —CO— or —SiH2—, and at least one of —(CH2)2— may be replaced by —CH═CH— or —C≡C—. The compound has a low threshold voltage and excellent compatibility with other liquid crystal compounds, and further excellent general physical properties required for the compound. The invention also provides a liquid crystal composition containing at least one of the compounds and having excellent properties, and a liquid crystal display device including the composition, and having a wide usable temperature range, a short response time, a large contrast ratio and a low driving voltage, and therefore can be used for a liquid crystal projector and a liquid crystal television.
    • 本发明提供由式(1)表示的液晶化合物:其中,在式(I)中,例如,R 1为氟,氯或碳数为1〜10的烷基,在烷基中,-CH 2 - 可以被-O - , - S-,-CO-或-SiH 2 - 代替,并且 - (CH 2)2 - 中的至少一个可以被-CH = CH-或-C≡C-取代。 该化合物具有低阈值电压和与其它液晶化合物优异的相容性,以及化合物所需的更优异的一般物理性能。 本发明还提供一种含有至少一种化合物并具有优异性能的液晶组合物,以及包含该组合物的液晶显示装置,具有宽的可用温度范围,较短的响应时间,较大的对比度和低的 驱动电压,因此可以用于液晶投影仪和液晶电视机。