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1. 发明授权

US09678401B2 Optical device 有权
公开(公告)号：US09678401B2
公开(公告)日：2017-06-13
申请号：US14344680
申请日：2012-09-06
申请人： William Alden Crossland , Anthony Bernard Davey , John Richard Moore , Daping Chu , Jonathan Paul Hannington , Terry Clapp
发明人： William Alden Crossland , Anthony Bernard Davey , John Richard Moore , Daping Chu , Jonathan Paul Hannington , Terry Clapp
IPC分类号： G02F1/137 , C09K19/02 , G09G3/20 , G09G3/36 , C09K19/40 , G02F1/133 , G02F1/1337
摘要： In a method of operating a liquid crystal device having a liquid crystal composition with smectic-A properties, a first waveform is applied to optically clear the device so that it is substantially transparent to visible light and a second waveform is applied to disorder the material of the liquid crystal composition to afford a strongly light-scattering state. The first waveform has a higher frequency than the second, waveform, and the method comprises applying a modified waveform to partially clear at least a portion of the device from the light-scattering state.

2. 发明申请

US20100283927A1 OLIGOSILOXANE MODIFIED LIQUID CRYSTAL FORMULATIONS AND DEVICES USING SAME 失效
标题翻译：低聚硅氧烷改性液晶配方及使用相同的装置
公开(公告)号：US20100283927A1
公开(公告)日：2010-11-11
申请号：US12738677
申请日：2007-10-19
申请人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
发明人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
IPC分类号： G02F1/136 , C09K19/04
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，其中液晶制剂是纳米级在SmC *相中分离的相具有I→SmC *相变，SmC *温度范围为约15℃至约35℃，倾斜角为约22.5°±6°或约 45°±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。

3. 发明申请

US20090185129A1 BISTABLE FERROELECTRIC LIQUID CRYSTAL DEVICES 失效
标题翻译：双电层液晶装置
公开(公告)号：US20090185129A1
公开(公告)日：2009-07-23
申请号：US12296612
申请日：2007-04-12
申请人： Terry Victor Clapp , Fumito Nishida , Jonathan Paul Hannington , Russell Keith King , Omar Farooq , William Alden Crossland , Joo-Nyung Jang , Huan Xu , Anthony Bernard Davey
发明人： Terry Victor Clapp , Fumito Nishida , Jonathan Paul Hannington , Russell Keith King , Omar Farooq , William Alden Crossland , Joo-Nyung Jang , Huan Xu , Anthony Bernard Davey
IPC分类号： G02F1/13 , C09K19/02 , C09K19/00
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性低聚硅氧烷液晶材料，表现出IOS·SmC *相序列的铁电性低聚硅氧烷液晶材料，其中液晶电光器件在工作中是双稳态的。本发明还涉及制造液晶电光器件的方法。

4. 发明授权

US08821992B2 Oligosiloxane modified liquid crystal formulations and devices using same 有权
标题翻译：低聚硅氧烷改性液晶配方及使用其的装置
公开(公告)号：US08821992B2
公开(公告)日：2014-09-02
申请号：US12739445
申请日：2007-10-26
申请人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russel Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
发明人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russel Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
IPC分类号： C09K19/40 , C09K19/34 , C09K19/12 , C09K19/20 , C09K19/54 , G02F1/141
CPC分类号： C09K19/406 , Y10T428/10
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.
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，有机液晶材料或非液晶材料中的至少一种附加材料，其中液晶组合物具有I →SmA *→SmC *相变，SmC *温度范围为约15℃至约35℃，倾斜角为约22.5°±6°或约45°±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。

5. 发明授权

US08368831B2 Oligosiloxane modified liquid crystal formulations and devices using same 失效
标题翻译：低聚硅氧烷改性液晶配方及使用其的装置
公开(公告)号：US08368831B2
公开(公告)日：2013-02-05
申请号：US12738677
申请日：2007-10-19
申请人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
发明人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
IPC分类号： G02F1/136
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，其中液晶制剂是纳米级在SmC *相中分离的相具有I→SmC *相变，SmC *温度范围为约15℃至约35℃，倾斜角为约22.5°±6°或约 45°±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. 发明授权

US08025937B2 Bistable ferroelectric liquid crystal devices 失效
标题翻译：双稳态铁电液晶装置
公开(公告)号：US08025937B2
公开(公告)日：2011-09-27
申请号：US12296612
申请日：2007-04-12
申请人： Terry Victor Clapp , Fumito Nishida , Jonathan Paul Hannington , Russell Keith King , Omar Farooq , William Alden Crossland , Joo-Nyung Jang , Huan Xu , Anthony Bernard Davey
发明人： Terry Victor Clapp , Fumito Nishida , Jonathan Paul Hannington , Russell Keith King , Omar Farooq , William Alden Crossland , Joo-Nyung Jang , Huan Xu , Anthony Bernard Davey
IPC分类号： C09K19/40 , C09K19/12 , C09K19/20
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性低聚硅氧烷液晶材料，表现出IOS·SmC *相序列的铁电性低聚硅氧烷液晶材料，其中液晶电光器件在工作中是双稳态的。本发明还涉及制造液晶电光器件的方法。

7. 发明授权

US08956548B2 Liquid crystal formulations and structures for smectic A optical devices 有权
标题翻译：用于近晶A光学器件的液晶配方和结构
公开(公告)号：US08956548B2
公开(公告)日：2015-02-17
申请号：US13635334
申请日：2011-03-15
申请人： Terry Victor Clapp , William Alden Crossland , Anthony Bernard Davey , Martin Grasmann , Jonathan Paul Hannington , Russell Keith King , Mikhael Pivnenko , Steven Robson , Huan Xu
发明人： Terry Victor Clapp , William Alden Crossland , Anthony Bernard Davey , Martin Grasmann , Jonathan Paul Hannington , Russell Keith King , Mikhael Pivnenko , Steven Robson , Huan Xu
IPC分类号： C09K19/04 , C09K19/38 , C09K19/54 , C09K19/58 , C09K19/60 , G02F1/137 , C09K19/40 , C09K19/42 , C09K19/52
CPC分类号： C09K19/60 , C09K19/406 , C09K19/408 , C09K19/42 , C09K19/52 , C09K19/54 , C09K19/58 , C09K2019/0444 , G02F1/13781
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.
摘要翻译：本发明涉及具有将组合物夹在一对电极（12-15）之间的光学装置中使用的具有近晶A结构的液晶组合物。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））的添加允许这种体系进一步缓和，因为它们可以被认为在给定层内和层之间结合在一起。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。

8. 发明申请

US20130155340A1 Liquid Crystal Formulations And Structures For Smectic A Optical Devices 有权
标题翻译：液晶配方和结构光电器件
公开(公告)号：US20130155340A1
公开(公告)日：2013-06-20
申请号：US13635334
申请日：2011-03-15
申请人： Terry Victor Clapp , William Alden Crossland , Anthony Bernard Davey , Martin Grasmann , Jonathan Paul Hannington , Russell Keith King , Mikhael Pivnenko , Steven Robson , Huan Xu
发明人： Terry Victor Clapp , William Alden Crossland , Anthony Bernard Davey , Martin Grasmann , Jonathan Paul Hannington , Russell Keith King , Mikhael Pivnenko , Steven Robson , Huan Xu
IPC分类号： C09K19/60 , C09K19/58 , G02F1/137
CPC分类号： C09K19/60 , C09K19/406 , C09K19/408 , C09K19/42 , C09K19/52 , C09K19/54 , C09K19/58 , C09K2019/0444 , G02F1/13781
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.
摘要翻译：本发明涉及具有将组合物夹在一对电极（12-15）之间的光学装置中使用的具有近晶A结构的液晶组合物。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））的添加允许这种体系进一步缓和，因为它们可以被认为在给定层内和层之间结合在一起。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。

9. 发明申请

US20100283925A1 OLIGOSILOXANE MODIFIED LIQUID CRYSTAL FORMULATIONS AND DEVICES USING SAME 有权
标题翻译：低聚硅氧烷改性液晶配方及使用相同的装置
公开(公告)号：US20100283925A1
公开(公告)日：2010-11-11
申请号：US12739445
申请日：2007-10-26
申请人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
发明人： Jonathan Paul Hannington , Terry Victor Clapp , Fumito Nishida , Russell Keith King , Omar Farooq , Martin Grasmann , William Alden Crossland , Harry James Coles , Anthony Bernard Davey , Huan Xu , Oliver Hadeler , Mykhaylo Pivnenko
IPC分类号： G02F1/133 , C09K19/34
CPC分类号： C09K19/406 , Y10T428/10
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.
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，有机液晶材料或非液晶材料中的至少一种附加材料，其中液晶组合物具有I →SmA *→SmC *相变，SmC *温度范围为约15℃至约35℃，倾斜角为约22.5°±6°或约45°±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。

10. 发明授权

US08999195B2 Smectic A compositions for use in optical devices 有权
标题翻译：用于光学器件的近晶A组合物
公开(公告)号：US08999195B2
公开(公告)日：2015-04-07
申请号：US13978805
申请日：2012-01-09
申请人： Daping Chu , Huan Xu , William Alden Crossland , Anthony Bernard Davey
发明人： Daping Chu , Huan Xu , William Alden Crossland , Anthony Bernard Davey
IPC分类号： C09K19/52 , C09K19/54 , C09K19/58 , C09K19/40 , G02F1/1333 , C09K19/02
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 10 nm 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：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组成不如第一状态那么有序。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取向的近晶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，使得当受到使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场的影响下由于电流动力学不稳定性，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。

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