Liquid crystal mixture
    1.
    发明授权
    Liquid crystal mixture 失效
    液晶混合物

    公开(公告)号:US4469618A

    公开(公告)日:1984-09-04

    申请号:US396246

    申请日:1982-07-08

    CPC分类号: C09K19/3003

    摘要: A liquid crystal composition comprising, as the essential components, trans-4-n-propyl-(4-ethylphenyl)-cyclohexane, trans-4-n-propyl-(4-cyanophenyl)-cyclohexane, trans-4-n-pentyl-(4-cyanophenyl)-cyclohexane, trans-4-n-pentyl-(4'-ethylbiphenyl-4)-cyclohexane and 4-(trans-4-n-pentylcyclohexyl)-4'-(trans-4-n-propylcyclohexyl)-biphenyl is drivable over a wide temperature range and can be operated rapidly at low temperatures.

    摘要翻译: 一种液晶组合物,其包含反式-4-正丙基 - (4-乙基苯基) - 环己烷,反式-4-正丙基 - (4-氰基苯基) - 环己烷,反式-4-正戊基 - (4-氰基苯基) - 环己烷,反式-4-正戊基 - (4'-乙基联苯-4) - 环己烷和4-(反式-4-正戊基环己基)-4' - (反式-4-正 - 丙基环己基) - 联苯可在较宽的温度范围内驱动,并能在低温下快速操作。

    Liquid crystal composition
    2.
    发明授权
    Liquid crystal composition 失效
    液晶组成

    公开(公告)号:US4464283A

    公开(公告)日:1984-08-07

    申请号:US396304

    申请日:1982-07-08

    CPC分类号: C09K19/3001

    摘要: A liquid crystal composition comprising trans-4-n-propyl-(4-ethylphenyl)-cyclohexane, trans-4-n-pentyl-(4-cyanophenyl)-cyclohexane, trans-4-n-pentyl-(4' -ethylbiphenyl-4)cyclohexane, trans-4-n-pentyl-(4'-cyanobiphenyl-4)-cyclohexane, 4-n-propylphenyl-4-(trans-4-n-propylcyclohexyl)benzoate, and 4-(trans-4-n-pentyl-cyclohexyl)-4'-(trans-4-n-propylcyclohexyl)-biphenyl is drivable over a wide temperature range and can be operated rapidly at low temperatures.

    摘要翻译: 包含反式-4-正丙基 - (4-乙基苯基) - 环己烷,反式-4-正戊基 - (4-氰基苯基) - 环己烷,反式-4-正戊基 - (4'-乙基联苯 -4)环己烷,反-4-正戊基 - (4'-氰基联苯-4) - 环己烷,4-正丙基苯基-4-(反-4-正丙基环己基)苯甲酸酯和4-(反式-4 - 正戊基 - 环己基)-4' - (反式-4-正丙基环己基) - 联苯可在宽的温度范围内驱动,并可在低温下快速操作。

    Fluorine-containing pyrimidine derivatives
    8.
    发明授权
    Fluorine-containing pyrimidine derivatives 失效
    含氟嘧啶衍生物

    公开(公告)号:US4812258A

    公开(公告)日:1989-03-14

    申请号:US35820

    申请日:1987-04-08

    摘要: Liquid crystalline fluorine-containing pyrimidine compounds have the formula I ##STR1## wherein R.sup.1 and R.sup.2 are H, R, OR or OCOR, and one of them can also be CN or F, or, if A is a covalent bond, also one or both of R.sup.1 and R.sup.2 can be 4-R.sup.4 -phenyl or 4-R-cyclohexyl, wherein R.sup.4 is R, OR, cyano, f or OCOR; wherein R is an alkyl group of 1 to 12 C atoms; R.sup.3 is F or, if one of the radicals R.sup.1 or R.sup.2 is F or 4-fluorophenyl, also H; Z is 1,3-pyrimidin-2,5-diyl; and A is 1,4-phenylene, 1,4-cyclohexylene or a covalent bond.Fluorine-containing pyrimidine compounds are useful components of liquid crystal dielectrics for electro-optical display devices.

    摘要翻译: 液晶含氟嘧啶化合物具有式I的化合物,其中R 1和R 2是H,R,OR或OCOR,它们之一也可以是CN或F,或者如果A是共价键,也可以是一个或 R 1和R 2可以是4-R 4 - 苯基或4-R-环己基,其中R 4是R,OR,氰基,F或OCOR; 其中R是1至12个C原子的烷基; R 3为F,或者如果基团R 1或R 2中的一个为F或4-氟苯基,则为H; Z是1,3-嘧啶-2,5-二基; A是1,4-亚苯基,1,4-亚环己基或共价键。 含氟嘧啶化合物是用于电光显示装置的液晶电介质的有用组分。