Liquid crystal compound
    1.
    发明授权
    Liquid crystal compound 失效
    液晶复合物

    公开(公告)号:US5891359A

    公开(公告)日:1999-04-06

    申请号:US899361

    申请日:1992-06-16

    IPC分类号: C07C69/76 C09K19/02 C09K19/32

    摘要: The novel liquid crystal compounds of the present invention are represented by the following formulas �I!-�II! and have tristable molecular orientation states and can be used for display devices and electrooptical devices. ##STR1## wherein R.sub.1 represents an alkyl group of 5-18 carbon atoms; R.sub.2 represents an alkyl group of 6-16 carbon atoms; R.sub.3 represents an alkyl group of 8-18 carbon atoms; R.sub.4 represents an alkyl group of 6-14 carbon atoms; Y represents ##STR2## and * indicates an optically active center.

    摘要翻译: 本发明的新型液晶化合物由下式[I] - [II]表示,具有三重分子取向状态,可用于显示装置和电光装置。 其中R 1表示5-18个碳原子的烷基; R 2表示6-16个碳原子的烷基; R3代表8-18个碳原子的烷基; R4代表6-14个碳原子的烷基; Y表示,*表示光学活动中心。

    Liquid crystal compounds
    5.
    发明授权
    Liquid crystal compounds 失效
    液晶化合物

    公开(公告)号:US5433887A

    公开(公告)日:1995-07-18

    申请号:US889373

    申请日:1992-05-28

    摘要: The invention discloses optically active liquid crystal compounds represented by the formulas [I], [II] and [III]: ##STR1## wherein R.sub.1 and R.sub.2 each represents an alkyl group of 4-18 carbon atoms, X represents O, COO or a single bond, and (A), (B), (C), (D) and (E) each represents ##STR2## in which l represents a halogen. The invention further discloses optically active liquid crystal compounds which are able to exhibit tristable states, represented by the formulas [IV], [V] and [VI]: ##STR3## wherein R.sub.1 ' and R.sub.2 ' each represents a straight chain alkyl group of 5-16 carbon atoms, X' represents O or COO and (A), (B), (C), (D) and (E), and l each has the same meaning as above.

    摘要翻译: 本发明公开了由式[I],[II]和[III]表示的光学活性液晶化合物:其中R1和R2各自表示4-18个碳原子的烷基 原子,X表示O,COO或单键,(A),(B),(C),(D)和(E)各自表示其中l表示卤素。 本发明还公开了能够表现出由式[Ⅳ],[Ⅴ]和[Ⅵ]表示的三态的光学活性液晶化合物:[IMAGE] [IV] 其中R 1'和R 2'各自表示5-16个碳原子的直链烷基,X'代表O或COO,(A),(B),(C),(D)和 (E)和l各自具有与上述相同的含义。

    Liquid crystal compound
    10.
    发明授权
    Liquid crystal compound 失效
    液晶复合物

    公开(公告)号:US5330678A

    公开(公告)日:1994-07-19

    申请号:US66445

    申请日:1993-05-25

    CPC分类号: C09K19/0266 C09K19/322

    摘要: Disclosed are novel liquid crystal compounds containing a naphthalene ring, having an excellent light leaking ratio at tristable states, and represented by the following formula: ##STR1## wherein R.sub.1 is a C.sub.6 -C.sub.16 linear alkyl group or C.sub.6 -C.sub.16 linear alkoxy group, R.sub.2 is a C.sub.4 -C.sub.12 linear alkyl group, R.sub.3 is a C.sub.1 -C.sub.3 alkyl group or C.sub.1 -C.sub.3 haloalkyl group, and C having an asterisk indicates an asymmetric atom.The liquid crystal compounds are expected to find their applications in electrooptical devices and liquid crystal displays utilizing a S*.sub.(3) liquid crystal phase which shows tristable states.

    摘要翻译: 公开了含有萘环的新型液晶化合物,其在三态下具有优异的漏光率,由下式表示:其中R1是C6-C16直链烷基或C6-C16直链烷氧基,R2 是C 4 -C 12直链烷基,R 3是C 1 -C 3烷基或C 1 -C 3卤代烷基,具有星号的C 1表示不对称原子。 期望液晶化合物可用于电光装置和液晶显示器,利用显示三态的S *(3)液晶相。