公开(公告)号：US06569505B2

公开(公告)日：2003-05-27

申请号：US09773673

申请日：2001-02-02

申请人： Eike Poetsch ,  Atsutaka Manabe ,  Volker Reiffenrath ,  Marcus Reuter ,  Volker Meyer ,  Joachim Krause ,  Detlef Pauluth

发明人： Eike Poetsch ,  Atsutaka Manabe ,  Volker Reiffenrath ,  Marcus Reuter ,  Volker Meyer ,  Joachim Krause ,  Detlef Pauluth

IPC分类号： C09K1912

CPC分类号： C09K19/02 ,  C09K19/12 ,  C09K19/16 ,  C09K19/42 ,  C09K19/44 ,  C09K19/544 ,  Y10T428/10

摘要： The instant invention relates to liquid crystal media comprising a strongly dielectrically positive component A, preferably comprising isothiocyanate compounds, most preferably compounds of formula I, as given in the text, and a further dielectrically positive component B, preferably comprising terminally polar substituted bi- or terphenyl compounds, most preferably comprising compounds of formula II, as given in the text, further to novel isothiocyanato compounds as well as to liquid crystal displays comprising these media, in particular to PDLC display and most particular to holographic PDLC displays. The instant invention further relates to compounds of formula I wherein the parameters are as as specified in the text.

摘要翻译： 本发明涉及液晶介质，其包含强介导的正性组分A，优选包括异硫氰酸酯化合物，最优选如本文中给出的式I化合物和另外的反应性阳性组分B，其优选包含末端极性取代的双 三联苯化合物，最优选包含本文给出的式II化合物，进一步涉及新型异硫氰酸酯化合物以及包含这些介质的液晶显示器，特别是PDLC显示器，最特别地涉及全息PDLC显示器。 本发明还涉及式I化合物，其中参数如文中所述。

公开(公告)号：US20020196404A1

公开(公告)日：2002-12-26

申请号：US10154255

申请日：2002-05-23

申请人： MINOLTA CO., LTD.

发明人： Hideaki Ueda ,  Takeshi Kitahora ,  Fumie Motoori

IPC分类号： C09K019/02

CPC分类号： C09K19/586 ,  C09K19/02 ,  C09K19/0225 ,  C09K19/60 ,  G02F1/13718

摘要： A chiral nematic liquid crystal composition which contains a nematic liquid crystal mixture and a chiral agent, which exhibits a cholesteric phase at room temperature and which selectively reflects light of a specified wavelength, wherein the chiral agent has an anisotropy of dielectric constant within a range from 12 to 60. Such a chiral nematic liquid crystal composition may have a larger anisotropy of dielectric constant than the nematic liquid crystal mixture before being mixed with the chiral agent. Alternatively, in such a chiral nematic liquid crystal composition, the anisotropy of dielectric constant of the chiral agent may be larger than that of the nematic liquid crystal mixture. By filling such a chiral nematic liquid crystal composition between transparent substrates, a liquid crystal cell is fabricated, and by stacking such liquid crystal cells in three layers, a reflective type full-color liquid crystal display can be produced.

摘要翻译： 一种含有向列液晶混合物和手性试剂的手征向列型液晶组合物，其在室温下显示出胆甾醇相，并选择性地反射特定波长的光，其中手性试剂的介电常数各向异性在 这种手性向列液晶组合物可以在与手性试剂混合之前具有比向列型液晶混合物更大的介电常数各向异性。 或者，在这种手性向列液晶组合物中，手性试剂的介电常数的各向异性可以大于向列型液晶混合物的各向异性。 通过在透明基板之间填充这样的手性向列液晶组合物，制造液晶单元，通过将这种液晶单元堆叠在三层中，可以制造反射型全色液晶显示器。

公开(公告)号：US06466355B1

公开(公告)日：2002-10-15

申请号：US09581395

申请日：2000-06-13

申请人： Horst Berneth ,  Daniel-Gordon Duff ,  Werner Hoheisel

发明人： Horst Berneth ,  Daniel-Gordon Duff ,  Werner Hoheisel

IPC分类号： G02F115

CPC分类号： C09K9/02 ,  B82Y20/00 ,  C09K19/02 ,  G02F1/1521 ,  G02F1/1533 ,  G02F2202/36

摘要： This invention relates to electrochromic devices that are protected against UV light by nanoparticles.

摘要翻译： 本发明涉及通过纳米颗粒保护免受UV光的电致变色器件。

公开(公告)号：US20020084444A1

公开(公告)日：2002-07-04

申请号：US09907654

申请日：2001-07-19

申请人： Merck Patent Gesellschaft Mit

发明人： Michael Darius ,  Volker Reiffenrath ,  Kazuaki Tarumi ,  Bernhard Rieger ,  Michael Heckmeier ,  Marcus Reuter ,  Peer Kirsch

IPC分类号： C09K019/12 ,  C07C025/13 ,  C09K019/52

CPC分类号： C07C39/17 ,  C07C255/53 ,  C07C2601/14 ,  C09K19/02 ,  C09K19/12 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/44 ,  C09K19/54 ,  C09K2019/3021 ,  Y10T428/10

摘要： The present invention relates to liquid-crystal mixtures having specific resistance values, comprising acidic compounds. The present invention furthermore relates to liquid-crystal displays containing these liquid-crystal mixtures. The invention furthermore relates to compounds of the formula I, 1 in which the parameters are as defined in the text, to their preparation, and to their use for achieving certain specific resistance values in liquid-crystal mixtures. The application also relates to a method of adjusting the specific resistance of liquid-crystal mixtures using acidic compounds.

摘要翻译： 本发明涉及具有电阻值的液晶混合物，其含有酸性化合物。 本发明还涉及含有这些液晶混合物的液晶显示器。 本发明还涉及式I化合物，其中参数如本文所定义，其制备及其在液晶混合物中达到某些比电阻值的用途。 本申请还涉及使用酸性化合物调节液晶混合物的电阻率的方法。

公开(公告)号：US06224787B1

公开(公告)日：2001-05-01

申请号：US09035937

申请日：1998-03-06

申请人： Junichi Hanna ,  Kyoko Kogo ,  Komei Kafuku

发明人： Junichi Hanna ,  Kyoko Kogo ,  Komei Kafuku

IPC分类号： C09K1958

CPC分类号： C09K19/06 ,  C09K19/02 ,  C09K19/32 ,  C09K19/3497 ,  Y10T428/10

摘要： A novel liquid crystalline charge transport material is provided which simultaneously has advantages of an amorphous material, that is, evenness in a large area, and advantages of a crystalline material having molecular alignment, is excellent in high-quality charge transport capability, film forming properties, various types of durability and the like, and permits the alignment to be regulated by external stimulation. The liquid crystalline charge transport material has smectic liquid crystallinity and an electron mobility of not less than 1×10−5 cm2/v.s.

摘要翻译： 提供了一种新颖的液晶电荷输送材料，其同时具有无定形材料的优点，即大面积均匀性和具有分子取向性的结晶材料的优点，优异的电荷输送能力，成膜性能 ，各种耐久性等，并且允许通过外部刺激来调节对准。 液晶电荷输送材料具有近晶系液晶，电子迁移率不小于1×10 -5 cm 2 / v.s。

公开(公告)号：US6151093A

公开(公告)日：2000-11-21

申请号：US122676

申请日：1998-07-27

申请人： Yasuyuki Takiguchi ,  Hiroyuki Takahashi

发明人： Yasuyuki Takiguchi ,  Hiroyuki Takahashi

IPC分类号： G02F1/137 ,  C09K19/02 ,  G02F1/139 ,  G02F1/1335

CPC分类号： G02F1/1391 ,  C09K19/02

摘要： A bistable liquid crystal display device includes a liquid crystal material which has a plurality of states, such as a stable state with a twist angle w.sub.0 and first and second metastable states with w.sub.0 180.degree. and w.sub.o -180.degree., respectively, wherein w.sub.0 is a twist angle along a direction of cell thickness of the liquid crystal material at an initial stable state. In order to properly drive the liquid crystal device, a first pulse voltage is applied to induce a transition from the stable state to a homeotropic state for the liquid crystal material, and a second voltage pulse is subsequently applied to relax the liquid crystal material from the homeotropic state selectively to either the first or second metastable state depending on the pulse shape. The liquid crystal material is composed such that a change of unstrained pitch thereof with temperature may suppress the change of switching behaviors with temperature, to thereby improve display characteristics of the liquid crystal device.

摘要翻译： 双稳态液晶显示装置包括具有多个状态的液晶材料，例如具有扭转角w0的稳定状态和分别为w0 180°和w0-180°的第一和第二亚稳态，其中w0为 在初始稳定状态下沿着液晶材料的单元厚度方向的扭曲角。 为了适当地驱动液晶装置，施加第一脉冲电压以引起从稳定状态向液晶材料的垂直状态的转变，并且随后施加第二电压脉冲以使液晶材料从 取决于脉冲形状，选择性地将第一或第二亚稳状态的垂直状态置于第一或第二亚稳状态。 液晶材料的组合使得其随温度的无约束间距的变化可以抑制随温度的切换行为的变化，从而改善液晶装置的显示特性。

公开(公告)号：US6068792A

公开(公告)日：2000-05-30

申请号：US132393

申请日：1998-08-11

申请人： Junji Watabe

发明人： Junji Watabe

IPC分类号： G02B1/04 ,  C08J5/18 ,  C08L101/12 ,  C09K19/02 ,  C09K19/38 ,  G02B1/08 ,  G02B5/30 ,  G02F1/13 ,  C09K19/52 ,  C09K19/12

CPC分类号： C08J5/18 ,  C09K19/02 ,  C09K19/3809 ,  G02B5/3016

摘要： A liquid crystalline polymer film formed from a liquid crystalline polymer the orientation structure of which is smectic CA phase fixed. In this orientation structure the angle between C-director in the liquid crystalline polymer and the film plane is not zero. The liquid crystalline polymer film is useful in optical and dynamic applications.

摘要翻译： 由液晶聚合物形成的液晶聚合物膜，其取向结构为近晶CA相固定。 在该取向结构中，液晶聚合物中的C导体与膜平面之间的角度不为零。 液晶聚合物膜可用于光学和动态应用。

公开(公告)号：US5938973A

公开(公告)日：1999-08-17

申请号：US927795

申请日：1997-09-11

申请人： Yuki Motoyama ,  Tomoyuki Yui ,  Masahiro Johno ,  Takahiro Matsumoto

发明人： Yuki Motoyama ,  Tomoyuki Yui ,  Masahiro Johno ,  Takahiro Matsumoto

IPC分类号： G02F1/13 ,  C07C69/86 ,  C07C69/90 ,  C09K19/02 ,  C09K19/06 ,  C09K19/20 ,  C09K19/46 ,  C09K19/12 ,  C07C69/76

CPC分类号： C09K19/2021 ,  C07C69/90 ,  C09K19/02 ,  C09K19/06

摘要： A swallow-tailed compound of the following general formula (1), ##STR1## wherein m is an integer of 4 to 10, n is an integer of 2 to 6, p is 0 or 1 and each of X and Y is independently a hydrogen or fluorine atom; and a ferrielectric liquid crystal composition consisting essentially of the swallow-tailed compound of the general formula (1) and a ferrielectric liquid crystal compound of the following general formula (2), ##STR2## wherein R is a linear alkyl group having 6 to 12 carbon atoms, Z is a hydrogen or fluorine atom, r is an integer of 2 to 4 and s is an integer of 2 to 4. The ferrielectric liquid crystal composition has a ferrielectric phase in a broad temperature range and attains a fast response and a large tilt angle in a broad temperature range so that a ferrielectric liquid crystal display device having high display qualities can be provided.

摘要翻译： 下述通式（1）的燕尾化合物，其中m为4〜10的整数，n为2〜6的整数，p为0或1，X和Y各自独立地为氢或氟 原子; 和基本上由通式（1）的燕尾化合物和以下通式（2）的电介质液晶化合物组成的电介质液晶组合物，其中R是具有6至12个碳原子的直链烷基， Z为氢或氟原子，r为2〜4的整数，s为2〜4的整数。电介质液晶组合物具有宽温度范围内的电介质相，具有快速响应和大倾角 在宽的温度范围内，可以提供具有高显示质量的电介质液晶显示装置。

公开(公告)号：US5928733A

公开(公告)日：1999-07-27

申请号：US848453

申请日：1997-05-08

申请人： Makoto Yoneya ,  Kishiro Iwasaki ,  Yasushi Tomioka ,  Hisao Yokokura ,  Katsumi Kondo ,  Yoshiharu Nagae

发明人： Makoto Yoneya ,  Kishiro Iwasaki ,  Yasushi Tomioka ,  Hisao Yokokura ,  Katsumi Kondo ,  Yoshiharu Nagae

IPC分类号： G02F1/1343 ,  C09K19/02 ,  G02F1/1337

CPC分类号： G02F1/133711 ,  C09K19/02 ,  G02F1/134363 ,  Y10T428/10 ,  Y10T428/1005 ,  Y10T428/1014 ,  Y10T428/1023 ,  Y10T428/1027 ,  Y10T428/1032 ,  Y10T428/1036

摘要： An active-matrix liquid crystal display device employing the in-plane switching mode in which an electric field substantially parallel to the substrate surface is applied to the liquid crystals, characterized by weak torsional anchoring of the liquid crystal molecules and the alignment layer surface at the liquid crystal/alignment layer interface to an extent that the extrapolation length which expresses the strength of said torsional anchoring will become not less than 10% of the gap between the substrates. For obtaining such weak torsional anchoring, an organic alignment layer comprising a polymer and/or oligomer having long-chain alkylene and/or fluoro groups, or an inorganic alignment layer formed by oblique evaporation technique, or a photo-reactive alignment layer formed by linearly polarized light irradiation is used.

摘要翻译： 采用面内切换模式的有源矩阵液晶显示装置，其中将基本上平行于基板表面的电场施加到液晶，其特征在于液晶分子和取向层表面的弱扭转锚定 液晶/取向层界面的程度使得表示所述扭转锚固强度的外推长度变得不小于基板之间间隙的10％。 为了获得这样的弱扭转锚定，包括具有长链亚烷基和/或氟基团的聚合物和/或低聚物的有机取向层，或通过倾斜蒸发技术形成的无机取向层，或由线性形成的光反应取向层 使用偏振光照射。

公开(公告)号：US5847798A

公开(公告)日：1998-12-08

申请号：US851673

申请日：1997-05-06

申请人： Deng-Ke Yang ,  Ruiqing Ma

发明人： Deng-Ke Yang ,  Ruiqing Ma

IPC分类号： C09K19/02 ,  C09K19/58 ,  G02F1/01 ,  G02F1/137 ,  G02F1/13 ,  G02F1/1333 ,  G02F1/1335

CPC分类号： C09K19/02 ,  C09K19/586 ,  G02F1/13718 ,  G02F1/0131 ,  G02F2001/13775

摘要： A new liquid crystalline light modulating cell and material are characterized by liquid crystalline light modulating material of liquid crystal and polymer, the liquid crystal being a chiral nematic liquid crystal having positive dielectric anisotropy and including chiral material in an amount effective to form focal conic and twisted planar textures, the polymer being distributed in phase separated domains in the liquid crystal cell in an amount that stabilizes the focal conic and twisted planar textures in the absence of a field and permits the liquid crystal to change textures upon the application of a field. In one embodiment, the material is light scattering in a field-OFF condition and optically clear in a field-ON condition, while in another embodiment, the material is optically clear in a field-OFF condition and light scattering in a field-ON condition. In still another embodiment, the material exhibits stability at zero field in a colored, light reflecting state, a light scattering state and multiple stable reflecting state therebetween, as well as being optically clear in the presence of a field. This embodiment allows for a display with a substantially white background with substantially black characters much like a printed page. In yet another embodiment, the application of mechanical force to the cell changes the material from an optically clear state to a light reflecting state.

摘要翻译： 一种新的液晶光调制元件和材料的特征在于液晶和聚合物的液晶光调制材料，液晶是具有正介电各向异性的手性向列型液晶，并且包括有效形成焦圆锥和扭曲的量的手性材料 平面纹理，聚合物在液晶单元中以相分离的畴分布，其量在不存在场的情况下稳定焦锥和扭曲的平面纹理，并且允许液晶在施加场时改变纹理。 在一个实施例中，该材料是在场关断状态下的光散射并且在场导通条件下是光学透明的，而在另一实施例中，该材料在场关闭状态下是光学透明的并且在场导通条件下的光散射 。 在另一个实施方案中，该材料在彩色光反射状态下的零场稳定性，在其间具有光散射状态和多个稳定的反射状态，以及在场的存在下光学清晰。 该实施例允许具有基本上白色背景的显示器，其基本上黑色字符非常类似于打印页面。 在另一个实施例中，向电池施加机械力将材料从光学透明状态改变为光反射状态。