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33 条记录 (耗时 0.021 秒)

    Fluorinated cyclopenta[b]naphthalenes and their use in liquid-crystal mixtures
    2.
    发明授权
    Fluorinated cyclopenta[b]naphthalenes and their use in liquid-crystal mixtures 有权
    氟化环戊二烯并[b]萘及其在液晶混合物中的应用

    公开(公告)号：US06759103B2

    公开(公告)日：2004-07-06

    申请号：US10241881

    申请日：2002-09-12

    申请人： Barbara Hornung ,  Wolfgang Schmidt ,  Rainer Wingen

    发明人： Barbara Hornung ,  Wolfgang Schmidt ,  Rainer Wingen

    IPC分类号： C09K1932

    CPC分类号： C09K19/32 ,  C07C25/22 ,  C07C25/24 ,  Y10T428/10

    摘要： The invention relates to compounds of the formula (I) and also liquid-crystal mixtures comprising these compounds, and their use in liquid-crystal displays: in which R1 is H, F, CF3, OCF3, OCF2H, OCFH2, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical, R2 is H, an alkyl radical or alkyloxy radical or an alkenyl radical or alkenyloxy radical, M1 and M2 are —C(═O)O—, —OC(═O)—, —CH2O—, —OCH2—, —OCF2—, —CF2O—, —C≡C—, —CH2CH2—, —CF2CF2—, —CF═CF—C(═O)O— or a single bond A1 and A2 are &agr;-1,4-diyl, unsubstituted or mono- or disubstituted by F; where &agr; is: phenylene cyclohexane, 1-cyclohexene, or 1,3-dioxane-2,5-diyl m and n are zero or 1; m+n=0 or 1 L1, L2, L3, L4 and L5 are H or F.

    摘要翻译： 本发明涉及式（I）化合物以及包含这些化合物的液晶混合物及其在液晶显示器中的应用：其中R 1是H，F，CF 3，OCF 3，OCF 2 H，OCFH 2，烷基 自由基或烷氧基或链烯基或烯氧基，R 2是H，烷基或烷氧基或链烯基或烯氧基，M 1和M 2是-C（= O）O - ， - OC（= O） - ， - CH 2 O - ， - OCH 2 - ， - OCF 2 - ， - CF 2 O - ， - C≡C-， - CH 2 CH 2 - ， - CF 2 CF 2 - ， - CF = O-或单键A 1和A 2是被F取代的未取代或单取代或二取代的α-1,4-二基; 其中α是：亚苯基环己烷，1-环己烯或1,3-二恶烷-2,5-二基，n是0或1; m + n = 0或1L 1，L 2，L 3，L 4和L 5为H或F.

    Liquid crystal compositions
    5.
    发明授权
    Liquid crystal compositions 失效
    液晶组成

    公开(公告)号：US06245257B1

    公开(公告)日：2001-06-12

    申请号：US09131853

    申请日：1998-08-10

    申请人： Yukari Sakai ,  Shinichi Nishiyama ,  Toyotaro Maruyama ,  Takahiro Fujiyama

    发明人： Yukari Sakai ,  Shinichi Nishiyama ,  Toyotaro Maruyama ,  Takahiro Fujiyama

    IPC分类号： C09K1932

    CPC分类号： C09K19/0266 ,  C09K19/322

    摘要： The liquid crystal composition of the invention contains at least two compounds represented by the following formula (A) and each having different structures, one or more methylene group in the alkylene group R1 may be substituted with —O— groups, not less than 50% by weight, and has a transmitted light quantity I32 satisfying the condition of 0.5≦I32≦0.50, wherein R1 is an alkyl group of 2 to 20 carbon atoms; m is 0 or 1; Z is a —COO— group or a —CH2O— group; X is a hydrogen atom, a methyl group or a trifluoromethyl group; and R2 is a group selected from the group consisting of a straight-chain alkyl group of 1 to 5 carbon atoms, an ether group represented by —(CH2)p—O—(CH2)qCH3 and an alkene group wherein a terminal ethyl group consisting a straight-chain alkyl group of 2 to 5 carbon atoms is replaced with a group having a C═C double bond.

    摘要翻译： 本发明的液晶组合物含有至少两种由下式（A）表示的化合物，各自具有不同的结构，亚烷基R1中的一个或多个亚甲基可以被-O-基取代，不少于50％ ，并且具有满足0.5≤I32≤0.50的条件的透射光量I32，其中R1为2〜20个碳原子的烷基; m为0或1; Z是-COO-基或-CH2O-基; X是氢原子，甲基或三氟甲基; 并且R 2是选自由1至5个碳原子的直链烷基组成的组，由 - （CH 2）p O-（CH 2）q CH 3表示的醚基团和烯烃基团，其中末端乙基由 2至5个碳原子的直链烷基被具有C = C双键的基团代替。

    Ortho substituted benzaldehydes, preparation thereof and use thereof
    6.
    发明授权
    Ortho substituted benzaldehydes, preparation thereof and use thereof 失效
    正取代的苯甲醛，其制备及其用途

    公开(公告)号：US06811832B2

    公开(公告)日：2004-11-02

    申请号：US09852552

    申请日：2001-05-10

    申请人： Rainer Wingen ,  Wolfgang Schmidt

    发明人： Rainer Wingen ,  Wolfgang Schmidt

    IPC分类号： C09K1932

    CPC分类号： C07C47/55 ,  C07C45/00 ,  C07C45/68 ,  Y10T428/10

    摘要： Compounds of the formula (I): in which X1=H or F, X2=H or F, and Y=Cl, Br or I, are prepared by reacting, in a solvent or solvent mixture at a temperature below −60° C., a halobenzene of the formula (II) with an organic lithium compound and then with a formyl equivalent of the formula (III): and may be used as starting materials for preparing agrochemicals, electronic materials and pharmaceuticals.

    摘要翻译： 式（I）化合物：其中X 1 = H或F，X 2 = H或F，Y = Cl，Br或I，通过在溶剂或溶剂混合物中 温度低于-60℃，式（II）的卤代苯与有机锂化合物，然后与式（III）的甲酰基当量：可用作制备农药，电子材料和药物的原料。

    Chiral swallow-tailed liquid crystal and its fabrication method
    7.
    发明授权
    Chiral swallow-tailed liquid crystal and its fabrication method 有权
    手性燕尾液晶及其制作方法

    公开(公告)号：US06740256B1

    公开(公告)日：2004-05-25

    申请号：US10404560

    申请日：2003-04-02

    申请人： Shune-Long Wu ,  Wen-Jiunn Hsieh

    发明人： Shune-Long Wu ,  Wen-Jiunn Hsieh

    IPC分类号： C09K1932

    CPC分类号： C09K19/3463 ,  C09K19/32

    摘要： A chiral swallow-tailed liquid crystal is provided. The present chiral swallow-tailed liquid crystal is synthesized from a chiral material. The present chiral swallow-tailed liquid crystal is composed of the compound of (N,N′-diethyl (s)-2-{6-[4-(4′-alkoxyphenyl)benzoyloxy]-2-naphthyl}propanamide or the compound of (N,N′-dipropyl(s)-2-{6-[4-(4′-alkoxyphenyl)benzoyloxy]-2-naphthyl}propanamide. The chiral center of the present chiral compound is directly linked to its rigid core, and the chiral tail of this compound is linked with a swallow-tailed group. The chiral center and swallow-tailed group are arranged at the same side in the molecular structure. This structural characteristic enables the chiral compound to have the same property of thresholdless antiferroelectricity, and the advantage of simple manufacturing process. The present chiral compound shows an optimum application effect in liquid crystal displays.

    摘要翻译： 提供手性燕尾液晶。 本手征燕尾液晶由手性材料合成。 本发明的手性燕尾液晶由（N，N'-二乙基-2- {6- [4-（4'-烷氧基苯基）苯甲酰氧基] -2-萘基}丙酰胺或化合物 的（N，N'-二丙基-2- {6- [4-（4'-烷氧基苯基）苯甲酰氧基] -2-萘基}丙酰胺。本手性化合物的手性中心与其刚性核心 ，该化合物的手性尾与燕尾连接，手性中心和燕尾组分布在分子结构的同一侧，该结构特征使手性化合物具有相同的无阈值特性 反铁电性和制造工艺简单的优点，本发明的手性化合物在液晶显示器中显示出最佳的应用效果。

    Bookshelf liquid crystal materials and devices
    8.
    发明授权
    Bookshelf liquid crystal materials and devices 失效
    书架液晶材料和装置

    公开(公告)号：US06703082B1

    公开(公告)日：2004-03-09

    申请号：US09885862

    申请日：2001-06-20

    申请人： Michael Wand ,  Kundalika M. More ,  Xin-Hua Chen ,  William Thurmes

    发明人： Michael Wand ,  Kundalika M. More ,  Xin-Hua Chen ,  William Thurmes

    IPC分类号： C09K1932

    CPC分类号： C09K19/322 ,  C09K2019/325 ,  Y10T428/10

    摘要： Liquid crystal materials that exhibit bookshelf structures are provided. When these bookshelf materials are incorporated into a bistable host material, the mixture exhibits a higher switching angle and increased A to C phase transition than bistable hosts without the bookshelf material. These bookshelf materials and bistable compositions are useful in liquid crystal displays, for example.

    摘要翻译： 提供展示书架结构的液晶材料。 当这些书架材料被并入双稳态主体材料中时，与没有书架材料的双稳态主机相比，混合物显示出更高的开关角度和增加的A到C相变。 这些书架材料和双稳态组合物例如可用于液晶显示器。