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公开(公告)号：US07595850B2
公开(公告)日：2009-09-29
申请号：US11299993
申请日：2005-12-12
IPC分类号： G02F1/1333
CPC分类号： G02F1/1334 , C09K19/542 , G02F2203/50 , Y10T29/49117
摘要： A new light modulating material using interconnected unidirectionally oriented microdomains of a liquid crystal, dispersed in a stressed polymer structure, is provided. The light modulating material is prepared by dissolving the liquid crystal in an uncured monomer and then curing the monomer so that the polymer forms a well-developed interpenetrating structure of polymer chains or sheets that is uniformly dispersed through the film. When the film is subjected to stress deformation the liquid crystal undergoes a change in its unidirectional orientation. The concentration of the polymer is high enough to hold the shear stress, but is as low as possible to provide the highest switch of the phase retardation when an electric field is applied. The new materials are optically transparent and provide phase modulation of the incident light opposed to the low driving voltage, linear electro-optical response, and absence of hysteresis. It has been shown that these new materials may be successfully used in display applications, optical modulator, and beam steering devices.
摘要翻译： 提供了使用分散在应力聚合物结构中的液晶的相互连接的单向定向微区域的新的光调制材料。 光调制材料通过将液晶溶解在未固化的单体中然后固化单体来制备，使得聚合物形成均匀地分散在膜中的聚合物链或片材的良好发展的互穿结构。 当膜受到应力变形时，液晶经历其单向取向的变化。 聚合物的浓度足够高以保持剪切应力，但是当施加电场时，尽可能低地提供相位延迟的最高开关。 新材料是光学透明的，并且提供与低驱动电压相对的入射光的相位调制，线性电光响应和不存在滞后。 已经表明这些新材料可以成功地用于显示应用，光学调制器和光束转向装置中。
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公开(公告)号：US08054413B2
公开(公告)日：2011-11-08
申请号：US12559872
申请日：2009-09-15
IPC分类号： G02F1/1333 , G02F1/13
CPC分类号： G02F1/1334 , C09K19/542 , G02F2203/50 , Y10T29/49117
摘要： A new light modulating material using interconnected unidirectionally oriented microdomains of a liquid crystal, dispersed in a stressed polymer structure, is provided. The light modulating material is prepared by dissolving the liquid crystal in an uncured monomer and then curing the monomer so that the polymer forms a well-developed interpenetrating structure of polymer chains or sheets that is uniformly dispersed through the film. When the film is subjected to stress deformation the liquid crystal undergoes a change in its unidirectional orientation. The concentration of the polymer is high enough to hold the shear stress, but is as low as possible to provide the highest switch of the phase retardation when an electric field is applied. The new materials are optically transparent and provide phase modulation of the incident light opposed to the low driving voltage, linear electro-optical response, and absence of hysteresis. It has been shown that these new materials may be successfully used in display applications, optical modulator, and beam steering devices.
摘要翻译： 提供了使用分散在应力聚合物结构中的液晶的相互连接的单向定向微区域的新的光调制材料。 光调制材料通过将液晶溶解在未固化的单体中然后固化单体来制备，使得聚合物形成均匀地分散在膜中的聚合物链或片材的良好发展的互穿结构。 当膜受到应力变形时，液晶经历其单向取向的变化。 聚合物的浓度足够高以保持剪切应力，但是当施加电场时，尽可能低地提供相位延迟的最高开关。 新材料是光学透明的，并且提供与低驱动电压相对的入射光的相位调制，线性电光响应和不存在滞后。 已经表明这些新材料可以成功地用于显示应用，光学调制器和光束转向装置中。
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公开(公告)号：US20060187402A1
公开(公告)日：2006-08-24
申请号：US11299993
申请日：2005-12-12
申请人： John West , Anatoliy Glushchenko , Guoqiang Zhang
发明人： John West , Anatoliy Glushchenko , Guoqiang Zhang
IPC分类号： C09K19/02
CPC分类号： G02F1/1334 , C09K19/542 , G02F2203/50 , Y10T29/49117
摘要： A new light modulating material using interconnected unidirectionally oriented microdomains of a liquid crystal, dispersed in a stressed polymer structure, is provided. The light modulating material is prepared by dissolving the liquid crystal in an uncured monomer and then curing the monomer so that the polymer forms a well-developed interpenetrating structure of polymer chains or sheets that is uniformly dispersed through the film. When the film is subjected to stress deformation the liquid crystal undergoes a change in its unidirectional orientation. The concentration of the polymer is high enough to hold the shear stress, but is as low as possible to provide the highest switch of the phase retardation when an electric field is applied. The new materials are optically transparent and provide phase modulation of the incident light opposed to the low driving voltage, linear electro-optical response, and absence of hysteresis. It has been shown that these new materials may be successfully used in display applications, optical modulator, and beam steering devices.
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公开(公告)号：US20110063564A1
公开(公告)日：2011-03-17
申请号：US12557733
申请日：2009-09-11
CPC分类号： C09K19/2007 , C09K19/3852 , C09K2019/0448 , C09K2219/03
摘要： The invention provides a liquid crystal (LC) composite, a LC cell, a LC device, and a method thereof. The LC composite comprises (i) a liquid crystal material, and (ii) a copolymer polymerized from LC monomers and non-LC-monomers; and the LC composite is mechanically stressed/sheared. The invention exhibits numerous merits such as high transmittance in visible and IR range, hysteresis free, and a simple fabrication process; and may be utilized in LC device applications such as adaptive optics e.g. beam steering devices and fast tip-tilt wavefront correctors; and general optical applications such as eye wears, compact cameras and compact telescopes.
摘要翻译： 本发明提供一种液晶（LC）复合物，LC单元，LC器件及其方法。 LC复合物包括（i）液晶材料，和（ii）由LC单体和非LC单体聚合的共聚物; 并且LC复合材料是机械应力/剪切。 本发明显示出许多优点，例如在可见光和IR范围内的高透光率，无滞后和简单的制造工艺; 并且可以用于诸如自适应光学器件的LC器件应用中。 光束转向装置和快速倾斜波前校正器; 以及一般的光学应用，例如眼睛磨损，紧凑型相机和紧凑型望远镜。
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公开(公告)号：US20070200093A1
公开(公告)日：2007-08-30
申请号：US11686141
申请日：2007-03-14
申请人： John West , Chae Cheon , Anatoliy Glushchenko , Yuri Reznikov , Fenghua Li
发明人： John West , Chae Cheon , Anatoliy Glushchenko , Yuri Reznikov , Fenghua Li
CPC分类号： C09K19/0225 , B82Y20/00 , C09K19/52 , G02F1/1334 , G02F1/13718 , G02F1/1392 , G02F1/141 , G02F2202/36 , Y10T428/10 , Y10T428/1005 , Y10T428/1036
摘要： This disclosure outlines a new method of modifying the properties of existing liquid crystals by doping them with ferroelectric micro- and nanoparticles. We show that this approach, in contrast to the traditional time consuming and expensive chemical synthetic methods, enriches and enhances the electro-optical performance of many liquid crystal materials. We demonstrate that by changing the concentration and type of ferroelectric particles the physical properties of the nematic, smectic, and cholesteric liquid crystal materials can be changed, including the dielectric constants, the birefringence, the phase transition temperatures, and even the order parameter. We also demonstrate the performance of these new materials in various devices, including displays, light modulators, and beam steering devices.
摘要翻译： 本公开概述了通过用铁电微纳米颗粒掺杂来改变现有液晶的性质的新方法。 我们表明，这种方法与传统的耗时和昂贵的化学合成方法相比，丰富和增强了许多液晶材料的电光性能。 我们证明，通过改变铁电粒子的浓度和类型，可以改变向列型，近晶态和胆甾型液晶材料的物理性能，包括介电常数，双折射率，相变温度，甚至阶数参数。 我们还展示了这些新材料在各种设备中的性能，包括显示器，光调制器和光束转向装置。
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公开(公告)号：US07903228B2
公开(公告)日：2011-03-08
申请号：US10471195
申请日：2003-01-10
IPC分类号： C09K19/02
CPC分类号： C09K19/52 , C09K19/0225 , C09K19/544 , G02F1/137
摘要： A liquid crystal device comprises ferroelectric particles suspended in a liquid crystal material. A method for fabricating a light-modulating device is also disclosed. The method comprises the steps of providing a pair of substrates with a cell gap therebetween, wherein electrodes are disposed on the facing surfaces of the substrates, and permanently disposing a suspension of ferroelectric particles in a liquid crystal material into said cell gap. A method of generating an image comprises providing a pair of substrates with a cell gap therebetween, providing transparent electrodes on each of said substrates adjacent to the cell gap, permanently disposing a suspension of ferroelectric particles in a liquid crystal material within the cell gap, and applying an electric field across the electrodes.
摘要翻译： 液晶装置包括悬浮在液晶材料中的铁电粒子。 还公开了一种制造光调制装置的方法。 该方法包括以下步骤：提供一对基板之间的单元间隙，其中电极设置在基板的相对表面上，并且将液晶材料中的铁电颗粒的悬浮液永久地设置到所述单元间隙中。 一种产生图像的方法包括提供一对基板之间的单元间隙，在与单元间隙相邻的每个所述基板上提供透明电极，将铁电颗粒的悬浮液永久性地设置在单元间隙内的液晶材料中，以及 在电极上施加电场。
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