利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

158 条记录 (耗时 0.02 秒)

    Distorted helix ferroelectric liquid crystal cell
    81.
    发明授权
    Distorted helix ferroelectric liquid crystal cell 失效
    扭曲螺旋铁电液晶电池

    公开(公告)号：US5841504A

    公开(公告)日：1998-11-24

    申请号：US741451

    申请日：1996-10-31

    申请人： Jurg Funfschilling ,  Martin Schadt

    发明人： Jurg Funfschilling ,  Martin Schadt

    IPC分类号： G02F1/133 ,  G02F1/141 ,  G09G3/18 ,  G02F1/13 ,  G02F1/1343

    CPC分类号： G02F1/141 ,  G02F1/13306 ,  G02F2001/1414

    摘要： A distorted helix ferroelectric liquid crystal cell (DHF) is driven with a capacitance connected in series to the liquid crystal layer. Capacity is effected by either an external device (capacitor) or by incorporation of a insulator (dielectric) in the DHF cell. The value of the series capacity is typically smaller than about twice the capacity of the cell without the series capacitance. The capacitive drive circuit, DHF cell and method for driving the circuit and cell, function to shorten the switching times required by conventional cells.

    摘要翻译： 扭曲的螺旋铁电液晶单元（DHF）由与液晶层串联连接的电容驱动。 容量由外部设备（电容器）或通过在DHF单元中并入绝缘体（电介质）来实现。 串联容量的值通常小于没有串联电容的电池容量的大约两倍。 电容驱动电路，DHF单元以及用于驱动电路和单元的方法起到缩短常规单元所需的切换时间的作用。

    Chiral dioxolanes
    83.
    发明授权
    Chiral dioxolanes 失效
    手性二氧戊环

    公开(公告)号：US5637255A

    公开(公告)日：1997-06-10

    申请号：US646894

    申请日：1991-01-28

    申请人： Stephen Kelly ,  Martin Schadt

    发明人： Stephen Kelly ,  Martin Schadt

    IPC分类号： C07D317/16 ,  C07D317/18 ,  C07D317/30 ,  C07D317/32 ,  C07D317/34 ,  C09K19/58 ,  C09K19/34

    CPC分类号： C09K19/588 ,  C07D317/32

    摘要： Chiral dopants of the formula ##STR1## in which n represents the number 0 or 1; R.sup.3 denotes a group of the general formula ##STR2## A.sup.1, A.sup.2 and A.sup.3, independently of one another, represent 1,4-phenylene which is unsubstituted or substituted by halogen, cyano and/or methyl and in which 1 or 2 CH groups may be replaced by nitrogen, or represent trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or naphthalene-2,6-diyl, and ring A.sup.2 additionally represents 1,4-biphenylene; Z.sup.1 and Z.sup.4, independently of one another, denote a single covalent bond or --CH.sub.2 CH.sub.2 --; Z.sup.2 and Z.sup.3, independently of one another, denote a single covalent bond, --CH.sub.2 CH.sub.2 --, --COO--, --OOC--, --CH.sub.2 O--, --OCH.sub.2 --, --C.tbd.C--, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 O--, --O(CH.sub.2).sub.3 -- or the trans-form of --CH.dbd.CH--CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 --CH.dbd.CH--, --CH.dbd.CH--CH.sub.2 --O-- or --O--CH.sub.2 --CH.dbd.CH--; with the proviso that, if R.sup.3 denotes a group of the formula II, at least one of the groups Z.sup.2 and Z.sup.3 denotes --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O--, --O--(CH.sub.2).sub.3 -- or the trans-form of --CH.dbd.CH--CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --CH.dbd.CH--, --CH.dbd.CH--CH.sub.2 --O-- or --O--CH.sub.2 --CH.dbd.CH--; R.sup.1, R.sup.5 and R.sup.6 denote hydrogen, alkyl, phenyl or alkoxycarbonyl; R.sup.2 denotes alkyl, phenyl or alkoxycarbonyl; R.sup.4 denotes halogen, cyano, trifluoromethyl, trifluoromethoxy or alkyl in which one --CH.sub.2 --CH.sub.2 -- may be replaced by --CH.dbd.CH-- and/or one or two non-adjacent methylene groups may be replaced by --O--, --COO-- and/or --OOC-- and/or one methylene group methylene group may be replaced by --CHX--; X denotes halogen, cyano or methyl; and the dioxolane ring shown in the formula I is in optically active form, liquid-crystalline mixtures which contain such dopants, and their use for optical and electrooptical purposes.

    摘要翻译： 其中n表示数字0或1的式“IMAGE”I的手性掺杂剂; R3表示通式II，A2和A3彼此独立地表示未取代或被卤素，氰基和/或甲基取代的1,4-亚苯基，其中 1或2个CH基团可以被氮代替，或代表反式-1,4-亚环己基，反式-1,3-二恶烷-2,5-二基或萘-2,6-二基，环A2另外表示1， 4-联苯; Z 1和Z 4彼此独立地表示单个共价键或-CH 2 CH 2 - ; Z2和Z3彼此独立地表示单个共价键，-CH 2 CH 2 - ， - COO - ， - OOC - ， - CH 2 O - ， - OCH 2 - ， - C 3 CF 3 - ， - （CH 2）4 - ， - （ （CH 2）3 - 或-CH = CH-CH 2 CH 2 - ，-CH 2 CH 2 -CH = CH-，-CH = CH-CH 2 -O-或-O-CH 2 -CH = CH-; 条件是，如果R3表示式II的基团，基团Z2和Z3中的至少一个表示 - （CH 2）4 - ， - （CH 2）3 -O-，-O-（CH 2）3 - 或 -CH = CH-CH 2 -CH 2 - ， - CH 2 -CH 2 -CH = CH - ， - CH = CH-CH 2 -O-或-O-CH 2 -CH = CH-的反式 - R1，R5和R6表示氢，烷基，苯基或烷氧基羰基; R 2表示烷基，苯基或烷氧基羰基; R4表示卤素，氰基，三氟甲基，三氟甲氧基或烷基，其中一个-CH 2 -CH 2 - 可以被-CH = CH-代替，和/或一个或两个不相邻的亚甲基可以被-O - ， - CO- 和/或-OOC-和/或一个亚甲基亚甲基可以被-CHX-取代; X表示卤素，氰基或甲基; 并且式I中所示的二氧戊环是旋光活性形式，含有这种掺杂剂的液晶混合物，以及它们用于光学和电光学目的。

    PHOTOACTIVE POLYMER MATERIALS
    85.
    发明申请
    PHOTOACTIVE POLYMER MATERIALS 审中-公开

    公开(公告)号：US20200002612A1

    公开(公告)日：2020-01-02

    申请号：US16568424

    申请日：2019-09-12

    申请人： ROLIC AG

    发明人： Hubert SEIBERLE

    IPC分类号： C09K19/38

    摘要： The present invention relates to novel photoactive polymer materials and their use as orienting layer for liquid crystals, which are used for the production of non-structured and structured optical elements or electro-optical elements and multi-layer systems.

    Optically effective surface relief microstructures and method of making them
    87.
    发明授权
    Optically effective surface relief microstructures and method of making them 有权

    公开(公告)号：US10350843B2

    公开(公告)日：2019-07-16

    申请号：US14108453

    申请日：2013-12-17

    申请人： ROLIC AG

    发明人： Martin Stalder

    IPC分类号： G02B5/02 ,  B29D11/00 ,  B42D25/29 ,  B42D25/324 ,  B42D25/328 ,  B42D25/445

    摘要： The present invention relates to an element comprising a surface area with a specific, optically effective surface relief microstructure (12). The surface relief microstructure has a surface modulation of top regions (13) and bottom regions (14), wherein in a first lateral direction of the surface area there is in average at least one transition from a top to a bottom region or vice versa within every 20 micrometer, and in a second lateral direction of the mask, which is perpendicular to the first direction, there is in average at least one transition from a first to a second zone or vice versa within every 200 micrometer. In the microstructure, (i) in the first direction the lateral arrangement of the transitions is non-periodic, and (ii) the top regions substantially lie in the same top relief plateau (15) and the bottom regions substantially lie in the same bottom relief plateau (16).