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51. 发明申请

WO1998030653A1 METHOD OF MAKING A LIQUID CRYSTAL LIGHT VALVE 审中-公开
标题翻译：制造液晶灯的方法
公开(公告)号：WO1998030653A1
公开(公告)日：1998-07-16
申请号：PCT/US1997000047
申请日：1997-01-08
申请人： RAYCHEM CORPORATION
发明人： RAYCHEM CORPORATION , LAU, Aldrich, N., K. , REDDY, Damoder , TOMITA, Akira , VO, Lanchi, P. , ANDREWS, Brackin, L. , DI ZIO, Kathleen , KAMATH, Hundi
IPC分类号： C09K19/54
CPC分类号： G02F1/1334 , C08F2/38 , C09K19/544
摘要： A method is disclosed for making a liquid crystal light valve in which the electro-optically active element is a liquid crystal composite sandwiched between two electrodes. The liquid crystal composite comprises plural volumes of liquid crystal material dispersed in a polymer matrix. By use of a tie layer, the problem of stress clearing is markedly reduced or eliminated. The tie layer material can be either a liquid crystal material or a telomer, cross-linkable or otherwise.
摘要翻译：公开了一种制造液晶光阀的方法，其中电光活性元件是夹在两个电极之间的液晶复合材料。该液晶复合材料包含分散在聚合物基质中的多体积的液晶材料。通过使用粘结层，显着减少或消除了应力清除的问题。连接层材料可以是液晶材料或调聚物，可交联或以其它方式。

52. 发明申请

WO1998004650A1 SWITCHABLE VOLUME HOLOGRAM MATERIALS AND DEVICES 审中-公开
标题翻译：可切换体积霍尔材料和器件
公开(公告)号：WO1998004650A1
公开(公告)日：1998-02-05
申请号：PCT/US1997012577
申请日：1997-07-11
申请人： SCIENCE APPLICATIONS INTERNATIONAL CORPORATION
发明人： SCIENCE APPLICATIONS INTERNATIONAL CORPORATION , SUTHERLAND, Richard, L. , NATARAJAN, Lalgudi, V. , TONDIGLIA, Vincent, P. , CRANE, Robert, L.
IPC分类号： C09K19/00
CPC分类号： G03F7/001 , C09K19/544 , G02F1/13342 , G03F7/031 , G03H1/02 , G03H1/0248 , G03H2001/026 , G03H2260/12 , G03H2260/33 , Y10T428/10 , Y10T428/1036 , Y10T428/24802
摘要： A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. The material is a new composition for a polymer-dispersed liquid crystals (PDLCs) comprising a homogeneous mixture of a nematic liquid crystal and a multifunctional penta acrylate monomer, with photoinitiator, coinitiator and cross-linking agent. The preferred components and concentrations are the monomer dipentaerythritol hydroxy penta acrylate, SIMILAR 10-40 wt.% of the liquid crystal E7, 5-15 wt.% of the cross-linking monomer N-vinylpyrrollidone, 10 to 10 gram moles of the coinitiator N- phenylglycine, and 10 to 10 gram moles of the photoinitiator Rose Bengal. About 6 wt.% of the surfactant octanoic acid may also be added. The PDLC material is exposed with coherent light to produce an interference pattern inside the material. Photopolymerization of the new PDLC material produces a hologram of clearly separated liquid crystal domains and cured polymer. Volume transmission gratings made with the new PDLC material can be electrically switched between nearly 100 % diffraction efficiency and nearly 0 % diffraction efficiency. By increasing the frequency of the switching voltage, switching voltages in the range of 50 Vrms can be achieved. The use of the surfactant allows low switching voltages at lower frequencies than without the surfactant. In an alternative embodiment, a new PDLC material can be utilized to form reflection gratings, including switchable reflection gratings. In still further embodiments, a new photopolymerizable material can be used to form switchable subwavelength gratings. By further processing, static transmission reflection, and subwavelength PDLC materials can be formed.
摘要翻译：新的可光聚合材料允许单步快速记录体积全息图，其性质可以被电控制。该材料是包含向列型液晶和多官能五丙烯酸酯单体的均匀混合物的聚合物分散液晶（PDLC）的新组合物，具有光引发剂，共引发剂和交联剂。优选的组分和浓度是单体二季戊四醇羟基五聚丙烯酸酯，类似于液晶E7的10-40重量％，5-15重量％的交联单体N-乙烯基吡咯烷酮，10 -3至10重量％ -4摩尔的共引发剂N-苯基甘氨酸和10 -5至10 -6摩尔的光引发剂Rose Bengal。还可以加入约6重量％的表面活性剂辛酸。 PDLC材料用相干光曝光以在材料内产生干涉图案。新型PDLC材料的光聚合产生清晰分离的液晶畴和固化聚合物的全息图。用新的PDLC材料制成的体积传输光栅可以在近100％的衍射效率和近0％的衍射效率之间电气切换。通过提高开关电压的频率，可以实现在50Vrms范围内的开关电压。与不使用表面活性剂相比，使用表面活性剂可以在较低频率下实现低开关电压。在替代实施例中，可以使用新的PDLC材料来形成包括可切换反射光栅的反射光栅。在另外的实施方案中，新的可光聚合材料可用于形成可切换的亚波长光栅。通过进一步处理，可以形成静态透射反射和亚波长PDLC材料。

53. 发明申请

WO1997017630A1 POLYMER-DISPERSED LIQUID-CRYSTAL ELECTROOPTICAL DEVICE AND METHOD OF PRODUCTION THEREOF 审中-公开
标题翻译：聚合物分散液晶电极装置及其生产方法
公开(公告)号：WO1997017630A1
公开(公告)日：1997-05-15
申请号：PCT/JP1996003303
申请日：1996-11-11
申请人： SEIKO EPSON CORPORATION , KOBAYASHI, Hidekazu , YAMADA, Shuhei
发明人： SEIKO EPSON CORPORATION
IPC分类号： G02F01/1333
CPC分类号： G02F1/1334 , C09K19/544 , Y10T428/10
摘要： A polymer-dispersed liquid-crystal electrooptical device including a liquid crystal-polymer composite layer (7) in which a liquid crystal (7A) and a polymer (7B) are dispersed in different phases and the liquid crystal and the polymer are oriented in the same direction when no electric field is applied; and electrode structures (3, 4) which are formed on both surfaces of the liquid crystal polymer composite layer, for orienting the liquid crystal in accordance with the electric field by applying the electric field to the liquid crystal polymer composite layer so that the liquid crystal polymer composite layer can scatter light. The above composite layer is formed by photo-polymerizing a precursor of the polymer dissolved in the liquid crystal containing an additive, which is a compound having a benzene ring of which at least one hydrogen atom is substituted by a hydroxyl group or a compound having hydroxybenzene ring as a skeletal structure, such as di-tert-butylhydroquinone. The additive improves an initial reflection ratio, a reflection ratio after aging under normal operating conditions and contrast in comparison with the case where the additive is not added.
摘要翻译：一种高分子分散液晶电光装置，其特征在于，具备液晶（7A）和聚合物（7B）分散在不同相中的液晶聚合物复合层（7），液晶和聚合物在不施加电场时相同的方向; 以及形成在液晶聚合物复合层的两个表面上的电极结构（3,4），用于通过向液晶聚合物复合层施加电场来根据电场定向液晶，使得液晶聚合物复合层可以散射光。上述复合层通过使溶解在含有添加剂的液晶中的聚合物的前体光聚合而形成，该添加剂是具有至少一个氢原子被羟基取代的苯环的化合物或具有羟基苯的化合物环作为骨架结构，例如二叔丁基氢醌。与未添加添加剂的情况相比，添加剂改善了初始反射率，老化后的正常操作条件下的反射率和对比度。

54. 发明申请

WO1995029966A1 LIGHT MODULATING DEVICE HAVING A MATRIX PREPARED FROM ALLYL REACTANTS 审中-公开
标题翻译：具有由全部抗体制备的基质的光调制装置
公开(公告)号：WO1995029966A1
公开(公告)日：1995-11-09
申请号：PCT/US1995004041
申请日：1995-04-07
申请人： MINNESOTA MINING AND MANUFACTURING COMPANY
发明人： MINNESOTA MINING AND MANUFACTURING COMPANY , VESLEY, George, F. , NERAD, Bruce, A.
IPC分类号： C09K19/54
CPC分类号： G02F1/1334 , C09K19/544
摘要： In one aspect, an optionally responsive film that includes liquid crystal dispersed in a polymer matrix that is the reaction product of; (a) 5-60 % by weight of one or more allyl reactants; (b) 15-95 % by weight or one or more ene reactants other than an allyl; and (c) 0-20 % by weight of one or more thiol reactants. In a second aspect, the film is the reaction product of: (a) 5-50 % by weight of one or more allyl reactants; and (b) 2-25 % by weight of one or more methacrylate reactants.
摘要翻译：在一个方面，一种任选响应的膜，其包括分散在作为其反应产物的聚合物基质中的液晶; （a）5-60重量％的一种或多种烯丙基反应物; （b）15-95重量％或一种或多种烯丙基以外的烯类反应物; 和（c）0-20重量％的一种或多种硫醇反应物。在第二方面，膜是以下物质的反应产物：（a）5-50重量％的一种或多种烯丙基反应物; 和（b）2-25重量％的一种或多种甲基丙烯酸酯反应物。

55. 发明申请

WO1995027017A1 AMPHIPHILIC TELOMERS 审中-公开
标题翻译：人造丝
公开(公告)号：WO1995027017A1
公开(公告)日：1995-10-12
申请号：PCT/US1995003681
申请日：1995-03-22
申请人： RAYCHEM CORPORATION
发明人： RAYCHEM CORPORATION , LAU, Aldrich
IPC分类号： C09K19/54
CPC分类号： C08F2/38 , C09K19/544
摘要： Use of Telomers of structure (I) where R is -CH3 or H; R' is a C5 to C18 alkyl or fluoroalkyl group; n is an integer between 2 and 6 inclusive; and x is an integer between 3 and 26 inclusive. For making liquid crystal composites used in light-valves.
摘要翻译：使用结构（I）的配位体，其中R是-CH 3或H; R'是C 5至C 18烷基或氟代烷基; n是2和6之间的整数; x是3和26之间的整数。用于制造光阀中使用的液晶复合材料。

56. 发明申请

WO1995025777A1 LIQUID CRYSTAL COMPOSITE AND METHOD OF MAKING 审中-公开
标题翻译：液晶复合材料及其制备方法
公开(公告)号：WO1995025777A1
公开(公告)日：1995-09-28
申请号：PCT/US1995003446
申请日：1995-03-17
申请人： RAYCHEM CORPORATION
发明人： RAYCHEM CORPORATION , HAVENS, John , DIZIO, Kathleen , GONZALES, Anne , REAMEY, Robert, H. , ATKINS, Harriett , CHENG, Jinlong
IPC分类号： C09K19/54
CPC分类号： C09K19/544
摘要： A method is disclosed for making a liquid crystal composite in which droplets of a liquid crystal material are dispersed in a polymer matrix. At least one further material separates the liquid crystal material from the polymer matrix. This construction permits the polymer matrix to be selected on the basis of its environmental properties and the further material to be selected on the basis of its orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.
摘要翻译：公开了制造其中液晶材料的液滴分散在聚合物基质中的液晶复合材料的方法。至少一种其它材料将液晶材料与聚合物基质分开。这种结构允许基于其环境性质和基于其与液晶材料的取向相互作用来选择的另外的材料来选择聚合物基质。由这种复合材料制成的轻型阀具有改善的电光性能。

57. 发明申请

WO1994026841A1 METHOD OF MAKING LIQUID CRYSTAL MATERIAL 审中-公开
标题翻译：制备液晶材料的方法
公开(公告)号：WO1994026841A1
公开(公告)日：1994-11-24
申请号：PCT/US1994004848
申请日：1994-05-03
申请人： RAYCHEM CORPORATION
发明人： RAYCHEM CORPORATION , REAMEY, Robert, H.
IPC分类号： C09K19/54
CPC分类号： C09K19/544
摘要： An encapsulated liquid crystal material which contains a liquid crystal composition dispersed in a containment medium and is responsive to an applied electric field to transform from a first visual state to a second visual state is made by: (a) providing a liquid crystal composition having an ordinary and an extraordinary refractive index; (b) providing a prepolymer material in which the liquid crystal composition is substantially immiscible and which is polymerizable into a containment medium having a refractive index which is substantially matched with the ordinary refractive index of the liquid crystal composition; (c) forming a dispersion of the liquid crystal composition in the prepolymer material, the dispersion having a mean volume diameter of less than 20 mu m; and (d) polymerizing the prepolymer material to form the encapsulated liquid crystal material.
摘要翻译：包含分散在容纳介质中并且响应于施加的电场以从第一视觉状态转变为第二视觉状态的液晶组合物的胶囊化液晶材料通过以下方式制备：（a）提供具有普通和非凡的折射率; （b）提供预聚物材料，其中液晶组合物基本上不混溶并可聚合成具有与液晶组合物的普通折射率基本匹配的折射率的容纳介质; （c）在所述预聚物材料中形成所述液晶组合物的分散体，所述分散体的平均体积直径小于20μm; 和（d）使预聚物材料聚合以形成封装的液晶材料。

58. 发明申请

WO1994010260A1 MULTISTABLE CHIRAL NEMATIC DISPLAYS 审中-公开
标题翻译：多功能手机显示器
公开(公告)号：WO1994010260A1
公开(公告)日：1994-05-11
申请号：PCT/US1993009999
申请日：1993-10-19
申请人： KENT STATE UNIVERSITY
发明人： KENT STATE UNIVERSITY , WEST, John , YANG, Deng-Ke
IPC分类号： C09K19/52
CPC分类号： C09K19/0208 , C09K19/542 , C09K19/544 , C09K19/586 , G02F1/13718 , G02F2001/13345
摘要： A light modulating reflective cell comprising a polymer-free chiral nematic liquid crystalline light modulating material is disclosed. The cell includes nematic liquid crystal having positive dielectric anisotropy and chiral material in an amount effective to form focal conic and twisted planar textures. The chiral material has a pitch length effective to reflect light in the visible spectrum, wherein the focal conic and twisted planar textures are stable in the absence of a field and the liquid crystal material is capable of changing textures upon the application of a field.
摘要翻译：公开了一种包含无聚合物的手性向列液晶光调制材料的光调制反射单元。该单元包括具有正介电各向异性的向列型液晶和有效形成焦圆锥形和扭曲平面纹理的量的手性材料。手性材料具有有效地反射可见光谱中的光的节距长度，其中焦点圆锥和扭曲的平面纹理在不存在场的情况下是稳定的，并且液晶材料能够在施加场时改变纹理。

59. 发明申请

WO1993018431A1 ENCAPSULATED LIQUID CRYSTAL STRUCTURES, APPARATUS CONTAINING THE SAME, AND METHODS THEREFOR 审中-公开
标题翻译：包封的液晶结构，包含其的装置及其方法
公开(公告)号：WO1993018431A1
公开(公告)日：1993-09-16
申请号：PCT/US1993002031
申请日：1993-03-09
申请人： RAYCHEM CORPORATION
发明人： RAYCHEM CORPORATION , WARTENBERG, Mark, F. , ATKINS, Harriet , REAMEY, Robert, H. , WELSH, Laurence , STRAIN, James , WOJTOWICZ, Janusz , MONTOYA, Wayne , DRZAIC, Paul, S. , HAVENS, John , TOMITA, Akira , LAU, Aldrich, N., K.
IPC分类号： G02F01/1333
CPC分类号： C09K19/544 , C09K19/54 , C09K19/58 , G02F1/1334
摘要： A liquid crystal display is made from an encapsulated liquid crystal structure comprising a liquid crystal composition dispersed in a containment medium. Selected additives may be added to the encapsulated liquid crystal structure to improve performance characteristics such as the operating field, the hysteresis, and the voltage holding ratio.
摘要翻译：液晶显示器由包含分散在容纳介质中的液晶组合物的胶囊化液晶结构制成。可以将所选择的添加剂加入到封装的液晶结构中，以改善操作场，滞后和电压保持率等性能特征。

60. 发明申请

WO9219695A3 Crystalline light modulating device and material 审中-公开
标题翻译：结晶光调制装置和材料
公开(公告)号：WO9219695A3
公开(公告)日：1992-12-10
申请号：PCT/US9203504
申请日：1992-04-28
申请人： UNIV KENT STATE OHIO
发明人： DOANE WILLIAM J , YANG DENG-KE , CHIEN LIANG-CHY
IPC分类号： C09K19/02 , C09K19/38 , C09K19/54 , C09K19/56 , C09K19/58 , G02F1/01 , G02F1/1333 , G02F1/1334 , G02F1/137 , G02F1/13
CPC分类号： G02F1/13718 , C09K19/02 , C09K19/542 , C09K19/544 , C09K19/586 , G02F1/0131 , G02F2001/13345 , G02F2001/13347 , G02F2001/13775
摘要： A new liquid crystalline light modulating cell and material are characterized by phase-separated polydomains of polymer networks dispersed in chiral nematic liquid crystal having positive dielectric anisotropy, the polymer being present in an amount less than 10 % by weight of the total weight of the material and, preferably, being cross-linked. The liquid crystal in the vicinity of the polydomains is less responsive to an applied field than surrounding regions of liquid crystal, whereby the new material exhibits different optical states in response to different field conditions. 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 new material is optically clear in a field-OFF condition and light scattering in a filed-ON condition. In still another embodiment, the new material exhibits stability at zero field in both a colored, light reflecting state and a light scattering state, as well as being optically clear in the presence of a field.

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