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1. 发明申请

WO2011115611A1 LIQUID CRYSTAL FORMULATIONS AND STRUCTURES FOR SMECTIC A OPTICAL DEVICES 审中-公开
标题翻译：液晶光学器件的液晶结构和结构
公开(公告)号：WO2011115611A1
公开(公告)日：2011-09-22
申请号：PCT/US2010/027328
申请日：2010-03-15
申请人： CAMBRIDGE ENTERPRISE LIMITED , CLAPP, Terry, Victor , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard , GRASSMAN, Martin , HANNINGTON, Jonathan, Paul , KING, Russell, Keith , PIVNENKO, Mike , ROBSON, Steven , XU, Huan
发明人： CLAPP, Terry, Victor , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard , GRASSMAN, Martin , HANNINGTON, Jonathan, Paul , KING, Russell, Keith , PIVNENKO, Mike , ROBSON, Steven , XU, Huan
IPC分类号： C09K19/40 , C09K19/42 , C09K19/54
CPC分类号： C09K19/406 , C09K19/408 , C09K19/42 , C09K19/54 , C09K2019/0444
摘要： The present invention relates to liquid crystal compositions having a smectic A structure for use in an optical device in which the composition is sandwiched between a pair of electrodes (12-15). In essence the composition includes a siloxane oligomer (component (a)) which may be seen to construct a layered SmA system of particular spacing and "strength". Within this structure a low molar mass nematic mesogen (component (c)) is provided that may be considered to be that of a "plasticiser" which moderates the layer "strength", while simultaneously providing tuneability to the properties of the composition, e.g. its refractive index or dielectric anisotropy. The addition of a side chain liquid crystal polysiloxane (component (d)) allows such systems to be further moderated since they can be considered as binding together the layers, both within a given layer and between layers. An ionic dopant (component (b)) is also included in the composition that migrates through the composition when low frequency electric fields are applied to the composition by the electrodes, thereby disrupting the order to the composition. Order in the composition can be restored by applying a higher frequency field that does not allow the dopant time to migrate significantly. Chromophores may also be included in the formulation.
摘要翻译：本发明涉及具有层间结构的液晶组合物，其用于将组合物夹在一对电极（12-15）之间的光学装置中。本质上该组合物包括硅氧烷低聚物（组分（a）），其可以被看作构建具有特定间距和“强度”的层状SmA体系。在该结构中，提供了低摩尔质量向列型介晶（组分（c）），其可以被认为是调节层“强度”的“增塑剂”，同时为组合物的性质提供可调性，例如。其折射率或介电各向异性。侧链液晶聚硅氧烷（组分（d））的添加允许这样的体系进一步缓和，因为它们可以被认为在给定层内和层之间粘合在一起。当通过电极将低频电场施加到组合物上时，离子掺杂剂（组分（b））也包括在组合物中迁移通过组合物，从而破坏组合物的顺序。可以通过施加不允许掺杂剂时间显着迁移的较高频率场来恢复组合物中的顺序。发色团也可以包括在制剂中。

2. 发明申请

WO2011115976A8 LIQUID CRYSTAL FORMULATIONS AND STRUCTURES FOR SMECTIC A OPTICAL DEVICES 审中-公开
公开(公告)号：WO2011115976A8
公开(公告)日：2011-09-22
申请号：PCT/US2011/028495
申请日：2011-03-15
申请人： CAMBRIDGE ENTERPRISE LIMITED , CLAPP, Terry, Victor , CROSSLAND, William, Alden , DAVEY, Anthony, Bemard , GRASSMAN, Martin , HANNINGTON, Jonathan, Paul , KING, Russell, Keith , PIVNENKO, Mike , ROBSON, Steven , XU, Huan , DOW CORNING CORPORATION
发明人： CLAPP, Terry, Victor , CROSSLAND, William, Alden , DAVEY, Anthony, Bemard , GRASSMAN, Martin , HANNINGTON, Jonathan, Paul , KING, Russell, Keith , PIVNENKO, Mike , ROBSON, Steven , XU, Huan
IPC分类号： C09K19/40 , C09K19/42 , C09K19/54 , C09K19/52
摘要： The present, invention relates to liquid crystal compositions having a smectic A structure for use in an optical device in which the composition is sandwiched between a pair of electrodes ( 12- 15). In essence the composition includes a siloxane oligomer (component (a)) which may be seen to construct a layered SmA system of particular spacing and "strength". Within this structure a low molar mass nematic mesogen (component (c)) is provided that may be considered to be that of a "plasticiser" which moderates the layer "strength", while simultaneously providing tuneability to the properties of the composition, e.g. its refractive index or dielectric anisotropy. The addition of a side chain liquid crystal polysiloxane (component (d)) allows such systems to be further moderated since they can be considered as binding together the la>¾rs, both within a given layer and between layers. An ionic dopant (component (b)) is also included in the composition that migrates through the composition when low frequency electric fields are applied to the composition by the electrodes, thereby disrupting the order to the composition. Order in the composition can be restored by applying a higher frequency field that does not allow the dopant time to migrate significantly. Chromophores may also be included in the formulation.

3. 发明申请

WO2007123844A1 BISTABLE FERROELECTRIC LIQUID CRYSTAL DEVICES 审中-公开
标题翻译：双电层液晶装置
公开(公告)号：WO2007123844A1
公开(公告)日：2007-11-01
申请号：PCT/US2007/009035
申请日：2007-04-12
申请人： DOW CORNING CORPORATION , CAMBRIDGE ENTERPRISE LTD , FAROOQ, Omar , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , DAVEY, Anthony, Bernard , HANNINGTON, Jonathan, Paul , JANG, Joo-nyung , CROSSLAND, William, Alden , XU, Huan
发明人： FAROOQ, Omar , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , DAVEY, Anthony, Bernard , HANNINGTON, Jonathan, Paul , JANG, Joo-nyung , CROSSLAND, William, Alden , XU, Huan
IPC分类号： C09K19/02 , C09K19/40
CPC分类号： C09K19/0225 , C09K19/406 , C09K19/408 , Y10T428/10 , Y10T428/1036
摘要： A liquid crystal electro-optic device. The liquid crystal electro-optic device comprises at least one liquid crystal cell comprising: a pair of substrates having a gap therebetween; a pair of electrodes, the pair of electrodes positioned on one of the substrates or one electrode positioned on each substrate; and a ferroelectric, oligosiloxane liquid crystal material disposed in the gap between the pair of substrates, the ferroelectric, oligosiloxane liquid crystal material exhibiting an I— ♦ SmC* phase sequence wherein the liquid crystal electro-optic device is bistable in operation. The invention also involves a method for making a liquid crystal electro-optic device.
摘要翻译：一种液晶电光装置。液晶电光装置包括至少一个液晶单元，包括：一对基板，其间具有间隙; 一对电极，位于一个基板上的一对电极或位于每个基板上的一个电极; 以及设置在一对基板之间的间隙中的铁电寡硅氧烷液晶材料，表现出I- SmC *相序，其中液晶电光器件在操作中是双稳态的。本发明还涉及制造液晶电光器件的方法。

4. 发明申请

WO2009054855A9 OLIGOSILOXANE MODIFIED LIQUID CRYSTAL FORMULATIONS AND DEVICES USING SAME 审中-公开
公开(公告)号：WO2009054855A9
公开(公告)日：2009-04-30
申请号：PCT/US2007/082676
申请日：2007-10-26
申请人： DOW CORNING CORPORATION , CAMBRIDGE ENTERPRISE LTD. , HANNINGTON, Jonathan, Paul , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , FAROOQ, Omar , GRASMANN, Martin , CROSSLAND, William, Alden , COLES, Harry, James , DAVEY, Anthony, Bernard , XU, Huan , HADELER, Oliver , PIVNENKO, Mykhaylo
发明人： HANNINGTON, Jonathan, Paul , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , FAROOQ, Omar , GRASMANN, Martin , CROSSLAND, William, Alden , COLES, Harry, James , DAVEY, Anthony, Bernard , XU, Huan , HADELER, Oliver , PIVNENKO, Mykhaylo
IPC分类号： C09K19/40
摘要： A liquid crystal formulation is described. The liquid crystal formulation comprises a first oligosiloxane-modified nano-phase segregating liquid crystalline material; and at least one additional material selected from a second oligosiloxane- modified nano-phase segregating liquid crystalline material, non-liquid crystalline oligosiloxane-modified materials, organic liquid crystalline materials, or non-liquid crystalline materials, wherein the liquid crystal formulation has an I→ SmA*→ SmC* phase transition, with a SmC* temperature range from about 15°C to about 35°C, a tilt angle of about 22.5° ± 6° or about 45° ± 6°, a spontaneous polarization of less than about 50 nC/cm2., and a rotational viscosity of less than about 600 cP. Devices containing liquid crystal formulations are also described. The device has a stable bookshelf geometry, bistable switching, and isothermal electric field alignment, a response time of less than 500 μs when switched between two stable states, and an electric drive field of less than about 30 V/ μm.

5. 发明申请

WO2009051598A1 OLIGOSILOXANE-MODIFIED LIQUID CRYSTAL FORMULATIONS AND DEVICES USING SAME 审中-公开
标题翻译：低聚硅氧烷改性液晶配方及其使用方法
公开(公告)号：WO2009051598A1
公开(公告)日：2009-04-23
申请号：PCT/US2007/081940
申请日：2007-10-19
申请人： DOW CORNING CORPORATION , CAMBRIDGE ENTERPRISE LTD. , HANNINGTON, Jonathan, Paul , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , FAROOQ, Omar , GRASMANN, Martin , CROSSLAND, William, Alden , COLES, Harry, James , DAVEY, Anthony, Bernard , XU, Huan , HADELER, Oliver , PIVNENKO, Mykhaylo
发明人： HANNINGTON, Jonathan, Paul , CLAPP, Terry, Victor , NISHIDA, Fumito , KING, Russell, Keith , FAROOQ, Omar , GRASMANN, Martin , CROSSLAND, William, Alden , COLES, Harry, James , DAVEY, Anthony, Bernard , XU, Huan , HADELER, Oliver , PIVNENKO, Mykhaylo
IPC分类号： C09K19/40
CPC分类号： C09K19/406 , Y10T428/1014
摘要： A liquid crystal formulation is described. The liquid crystal formulation comprises a first oligosiloxane-modified nano-phase segregating liquid crystalline material; and at least one additional material selected from a second oligosiloxane- modified nano-phase segregating liquid crystalline material, non-liquid crystalline oligosiloxane-modified materials, organic liquid crystalline materials, or organic non- liquid crystalline materials, wherein the liquid crystal formulation is nano-phase segregated in the SmC* phase, has an I→SmC* phase transition, with a SmC* temperature range from about 15°C to about 35°C, has a tilt angle of about 22.5° ± 6° or about 45° ± 6°, and has a spontaneous polarization of less than about 50 nC/cm2, and a rotational viscosity of less than about 600 cP. Devices containing liquid crystal formulations are also described. The device has a stable bookshelf geometry, bistable switching, and isothermal electric field alignment, a response time of less than 500 μs when switched between two stable states, and an electric drive field of less than about 30 V/ μm.
摘要翻译：描述了液晶配方。液晶制剂包含第一寡硅氧烷改性的纳米相分离液晶材料; 和选自第二寡硅氧烷改性的纳米相分离液晶材料，非液晶低聚硅氧烷改性材料，有机液晶材料或有机非液晶材料中的至少一种附加材料，其中液晶配方是纳米在SmC *相中分离的相具有从约15℃至约35℃的SmC *温度范围的I 2 SmC *相变，具有约22.5°±6°或约45°的倾斜角 ±6°，自发极化小于约50cC / cm 2，旋转粘度小于约600cP。还描述了含有液晶制剂的装置。该装置具有稳定的书架几何形状，双稳态切换和等温电场对准，在两个稳定状态之间切换时的响应时间小于500μs，小于约30V /μm的电驱动场。

6. 发明申请

WO2012095627A1 SMECTIC A COMPOSITIONS FOR USE IN OPTICAL DEVICES 审中-公开
标题翻译：用于光学器件的精细化学组合物
公开(公告)号：WO2012095627A1
公开(公告)日：2012-07-19
申请号：PCT/GB2012/000017
申请日：2012-01-09
申请人： CAMBRIDGE ENTERPRISE LIMITED , CHU, Daping , XU, Huan , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
发明人： CHU, Daping , XU, Huan , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
IPC分类号： C09K19/02 , C09K19/58 , C09K19/52 , C09K19/40
CPC分类号： G02F1/1333 , C09K19/02 , C09K19/408 , C09K19/52 , C09K19/582
摘要： A liquid crystal smectic A composition that can be switched by the application of different electric fields across it between a first stable state (left hand block in Fig 4) and at least one second stable state (right hand block in Fig 4) in which the composition is less ordered than in the first state. The radiation transmission properties of the first and second states are different. The composition comprises: (A) a liquid crystal material that has a positive dielectric anisotropy and that is a uniformly aligned smectic A structure when in the first state; (B) an ionic dopant giving a negative conductivity anisotropy in the liquid crystal material so that it is capable of disrupting the smectic A structure of the first state when subject to an electric field that causes the dopant to migrate through the composition, thereby causing the composition to switch into said at least one second state, and (C) optically anisotropic pigment particles having positive dielectric anisotropy dispersed in the composition, the largest dimension of the pigment particles being in the range of 10nm to 1 μm. The composition, when in the first relatively stable state, is capable of undergoing smectic dynamic scattering due to electro-hydrodynamic instability under the influence of a sufficiently low frequency AC field, thereby disordering the liquid crystals and the pigment particles and thereby discouraging the pigment particles from aggregating together. The composition is suitable for use in displays and is especially resistant to degradation by ambient light and so can be used in outside applications.
摘要翻译：一种液晶近晶A组合物，其可以通过在第一稳定状态（图4中的左侧块）和至少一个第二稳定状态（图4中的右侧块）之间施加不同的电场来切换，其中组成不如第一个状态那么有序。第一和第二状态的辐射传播特性不同。该组合物包含：（A）具有正介电各向异性且当处于第一状态时为均匀排列的近晶A结构的液晶材料; （B）在液晶材料中具有负电导率各向异性的离子掺杂剂，使得当受到导致掺杂剂迁移通过组合物的电场时，能够破坏第一状态的近晶A结构，从而导致组成切换到所述至少一个第二状态，和（C）具有分散在组合物中的正介电各向异性的光学各向异性颜料颗粒，颜料颗粒的最大尺寸在10nm至1μm范围内。当处于第一相对稳定状态时，由于在足够低频率的AC场的影响下由于电液动力学不稳定性，组合物能够发生近晶的动态散射，从而使液晶和颜料颗粒失调，从而阻止颜料颗粒从聚合在一起。该组合物适用于显示器，并且特别耐环境光降解，因此可用于外部应用。

7. 发明申请

WO2005019380A1 BISTABLE FERROELECTRIC LIQUID CRYSTAL CELLS AND DEVICES USING SILOXANE OLIGMOMERS AND THE USE THEREOF 审中-公开
标题翻译：使用硅氧烷低聚物的双电层液晶电池及其器件及其用途
公开(公告)号：WO2005019380A1
公开(公告)日：2005-03-03
申请号：PCT/GB2004/003529
申请日：2004-08-16
申请人： CAMBRIDGE UNIVERSITY TECHNICAL SERVICES LIMITED , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
发明人： CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
IPC分类号： C09K19/40
CPC分类号： G02F1/141 , C09K19/406 , G02F1/133711 , Y10T428/1036
摘要： The present invention provides a liquid crystal cell that is bistable in operation and comprises a ferroelectric compound having a smectic C phase, arranged between alignment layers of polyamide or polyester. Said compound has the general formula (I) wherein R represents an alkyl group having from 1 to 10 carbon atoms or the group (II) each R’ represents an alkyl group having from 1 to 4 carbon atoms, T is (a) or (b), X represents an alkyl or halogen-substituted alkyl group having at least one chiral centre, Y represents a fluorine atom, m has a value of 0, 1 or 2, p has a value of 2, 3 or 4 and n has a value of 10, 11 or 12.
摘要翻译：本发明提供了一种在工作中双稳态并且包括具有近晶C相的铁电化合物的液晶单元，其布置在聚酰胺或聚酯的取向层之间。所述化合物具有通式（I）其中R表示具有1至10个碳原子的烷基或基团（II），每个R'表示具有1至4个碳原子的烷基，T是（a）或（ b）中，X表示具有至少一个手性中心的烷基或卤素取代的烷基，Y表示氟原子，m表示0,1或2，p表示2,3或4的数，n表示值为10,11或12。

8. 发明申请

WO2006035213A3 LARGE SCALE LIQUID CRYSTAL STRUCTURES 审中-公开
公开(公告)号：WO2006035213A3
公开(公告)日：2006-04-06
申请号：PCT/GB2005/003705
申请日：2005-09-27
申请人： CAMBRIDGE UNIVERSITY TECHNICAL SERVICES LIMITED , ADVEX CORPORATION LIMITED , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard , SUN, Gang , DIXON, Alan, Colin
发明人： CROSSLAND, William, Alden , DAVEY, Anthony, Bernard , SUN, Gang , DIXON, Alan, Colin
IPC分类号： G02F1/1347
摘要： A liquid crystal structure (200) comprising first and second reflective regions (214a, 214b, 214c) arranged to reflect respective first and second colours. The first and second reflective regions (214a, 214b, 214c) are disposed transversely to the direction of reflection (R). Each region includes a reflective back area and a selector (210) controllable to control light reflected from the region. Furthermore, a controllable reflector (212) is superposed over the reflective region in the direction of reflection (R) and controllable to transmit or scatter incident light.

9. 发明申请

WO2004107029A1 LIQUID CRYSTAL DEVICE 审中-公开
标题翻译：液晶装置
公开(公告)号：WO2004107029A1
公开(公告)日：2004-12-09
申请号：PCT/GB2004/002320
申请日：2004-06-02
申请人： CAMBRIDGE UNIVERSITY TECHNICAL SERVICES LIMITED , CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
发明人： CROSSLAND, William, Alden , DAVEY, Anthony, Bernard
IPC分类号： G02F1/1343
CPC分类号： G02F1/1337 , G02F1/134363 , G02F2001/133742
摘要： A liquid crystal device including a layer of liquid crystal material, and provided on one side of the liquid crystal material layer an array of conductors for generating electric fields therebetween to change the molecular orientation of pixel portions of the layer of liquid crystal material, wherein each pixel portion of the liquid crystal material layer is associated with a respective group of conductors distributed over the respective pixel area for the application of voltages across distances smaller than the pixel dimensions, wherein the conductors and the spacing therebetween within each group are sufficiently small with respect to the thickness of the liquid crystal material layer that each group can be used to generate an electric field that induces through at least a portion of the thickness of the liquid crystal material layer a different molecular orientation pattern that is substantially uniform across the whole area of the respective pixel portion.
摘要翻译：一种液晶显示装置，其具有液晶材料层，在液晶材料层的一侧设置有用于在其间产生电场的导体阵列，以改变液晶材料层的像素部分的分子取向，液晶材料层的像素部分与分布在各个像素区域上的相应的一组导体相关联，以便在小于像素尺寸的距离上施加电压，其中每个组内的导体和它们之间的间隔足够小，相对于每个组可以用于产生电场的液晶材料层的厚度，该电场通过液晶材料层的至少一部分厚度引起不同的分子取向图案，该分子取向图案在整个区域相应的像素部分。

10. 发明申请

WO2007122409A1 LIQUID CRYSTAL DEVICES 审中-公开
标题翻译：液晶装置
公开(公告)号：WO2007122409A1
公开(公告)日：2007-11-01
申请号：PCT/GB2007/001488
申请日：2007-04-24
申请人： CAMBRIDGE ENTERPRISE LIMITED , CROSSLAND, William, Alden , COLLINGS, Neil , ROBERTSON, Paul, Andrew
发明人： CROSSLAND, William, Alden , COLLINGS, Neil , ROBERTSON, Paul, Andrew
IPC分类号： G02F1/137
CPC分类号： G02F1/13725 , B82Y20/00 , G02F2202/36 , G02F2203/13 , H01P1/19
摘要： An electrical component comprising a substrate (30) carrying a LC cell (10) wherein the LC cell (10) comprises liquid crystal material (20) containing anisotropic particles (25), at least one conductive member (36) disposed on the substrate (30) and at least one conductive member (34) disposed over the LC cell (10), and means for affecting the alignment of the anisotropic particles (25) whereby the permittivity between the conductive members (34, 36) is varied.
摘要翻译：一种电气部件，包括承载LC电池（10）的衬底（30），其中所述LC电池（10）包括含有各向异性颗粒（25）的液晶材料（20），设置在所述衬底上的至少一个导电构件（36） 30）和设置在LC单元（10）之上的至少一个导电构件（34），以及用于影响各向异性颗粒（25）的对准的装置，由此改变导电构件（34,36）之间的介电常数。

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