公开(公告)号：US4685771A

公开(公告)日：1987-08-11

申请号：US866216

申请日：1986-05-22

申请人： John L. West ,  Joseph W. Doane ,  Slobodan Zumer

发明人： John L. West ,  Joseph W. Doane ,  Slobodan Zumer

IPC分类号： C09K19/54 ,  G02F1/1334 ,  G02F1/13

CPC分类号： G02F1/1334 ,  C09K19/544 ,  Y10S359/90

摘要： The invention provides a new liquid crystal display material prepared by the phase separation of a homogeneous solution of liquid crystal and thermoplastic resin to create in situ microdroplets of liquid crystal within a set transparent resin matrix. The new display material is characterized by ease of fabrication and the ability to be reworked by simple heating and cooling of the thermoplastic resin containing microdroplets of liquid crystal. It has been discovered that such a material fabricated from a thermoplastic resin and a liquid crystal having a liquid crystalline phase to isotropic phase transition temperature above the softening temperature of the resin exhibits a reversible field-independent memory.

摘要翻译： 本发明提供了通过液相和热塑性树脂的均相溶液的相分离制备的新的液晶显示材料，以在一组透明树脂基质内产生液晶的原位微滴。 新的显示材料的特征在于容易制造和通过简单的加热和冷却含有液晶微滴的热塑性树脂来进行再加工的能力。 已经发现，由热塑性树脂制成的材料和具有液晶相到具有高于树脂的软化温度的各向同性相转变温度的液晶表现出可逆的场独立存储器。

公开(公告)号：US5434685A

公开(公告)日：1995-07-18

申请号：US172430

申请日：1993-12-22

申请人： Janez Pirs ,  Robert Blinc ,  Slobodan Zumer ,  Igor Musevic ,  Bojan Marin ,  Silva Pirs ,  Joseph W. Doane

发明人： Janez Pirs ,  Robert Blinc ,  Slobodan Zumer ,  Igor Musevic ,  Bojan Marin ,  Silva Pirs ,  Joseph W. Doane

IPC分类号： G02F1/137 ,  G02F1/141 ,  G02F1/13

CPC分类号： G02F1/141 ,  C09K19/0225 ,  C09K19/544 ,  G02F2001/13775

摘要： An oriented ferroelectric liquid crystal in the chiral smectic C phase with the smectic planes normal to bounding plates of a cell is interspersed with polymer which stabilizes and freezes the arrangement of the liquid crystal.

摘要翻译： 在手性近晶C相中的取向铁电液晶与具有与电池的界限板正交的近晶面散布有聚合物，其稳定并冻结液晶的排列。

公开(公告)号：US5504600A

公开(公告)日：1996-04-02

申请号：US420037

申请日：1995-04-11

申请人： Janez Pirs ,  Robert Blinc ,  Slobodan Zumer ,  Igor Musevic ,  Bojan Marin ,  Silva Pirs ,  Joseph W. Doane

发明人： Janez Pirs ,  Robert Blinc ,  Slobodan Zumer ,  Igor Musevic ,  Bojan Marin ,  Silva Pirs ,  Joseph W. Doane

IPC分类号： G02F1/137 ,  G02F1/141 ,  G02F1/1333 ,  C09K19/02

CPC分类号： G02F1/141 ,  C09K19/0225 ,  C09K19/544 ,  G02F2001/13775

摘要： An oriented ferroelectric liquid crystal in the chiral smectic C phase with the smectic planes normal to bounding plates of a cell is interspersed with polymer which stabilizes and freezes the arrangement of the liquid crystal. The polymer which stabilizes the liquid crystal is formed by a method which includes introducing a mixture of a monomer and a ferroelectric liquid crystal between cell walls when the liquid crystal is in the isotropic phase, cooling the liquid crystal to a chiral nematic or smectic phase, and polymerizing the monomer. The cooling of the mixture can be done in the presence of a magnetic or electric field.

摘要翻译： 在手性近晶C相中的取向铁电液晶与具有与电池的界限板正交的近晶面散布有聚合物，其稳定并冻结液晶的排列。 稳定液晶的聚合物通过在液晶处于各向同性相中时将单体和铁电液晶的混合物引入单元壁之间的方法形成，将液晶冷却成手性向列相或近晶相， 并使单体聚合。 混合物的冷却可以在磁场或电场的存在下进行。

公开(公告)号：US5240636A

公开(公告)日：1993-08-31

申请号：US860114

申请日：1992-03-30

申请人： Joseph W. Doane ,  John L. West

发明人： Joseph W. Doane ,  John L. West

IPC分类号： C09K19/38 ,  C09K19/54 ,  G02F1/1334

CPC分类号： C09K19/544 ,  C09K19/38 ,  G02F1/1334 ,  G02F2001/13347

摘要： A haze-free light modulating polymer dispersed liquid crystal (PDLC) material is disclosed which comprises a polymer which is birefringent and possesses anisotropic optical properties similar to those of the dispersed liquid crystal such that the PDLC material in its transparent state exhibits a refractive index that is matched for all directions of incident light providing for an optically clear, scatter-free film for all angles of view. Electrooptic light shutters are possible from this material which are transparent in the field OFF-state and opaque in the field ON-state or vice versa, depending upon the liquid crystal phase structure and configuration of the light shutter device.

摘要翻译： 公开了一种无雾光聚合物分散液晶（PDLC）材料，其包含双折射聚合物，并且具有与分散液晶相似的各向异性光学特性，使得其透明状态下的PDLC材料表现出折射率， 适用于所有方向的入射光，为所有角度提供光学透明，无散射的胶片。 根据液晶相位结构和光快门装置的配置，电光闸可以在场外OFF状态下透明并且在场中不透明的材料，或反之亦然。

公开(公告)号：US4994204A

公开(公告)日：1991-02-19

申请号：US324051

申请日：1989-03-20

申请人： Joseph W. Doane ,  John L. West

发明人： Joseph W. Doane ,  John L. West

IPC分类号： C09K19/38 ,  C09K19/54 ,  G02F1/1334

CPC分类号： C09K19/38 ,  C09K19/544 ,  G02F1/1334 ,  G02F2001/13347 ,  Y10T428/10

摘要： A haze-free light modulating polymer dispersed liquid crystal (PDLC) material is disclosed which comprises a polymer matrix which is birefringent and possesses anisotropic optical properties similar to those of the dispersed liquid crystal microdroplets such that the PDLC material in its transparent state exhibits a refractive index that is matched for all directions of incident light providing for an optically clear, scatter-free film for all angles of view. Electrooptic light shutters are possible from this material which are transparent in the field OFF-state and opaque in the field ON-state or vice versa, depending upon the microdroplet structure and configuration of the light shutter device.

摘要翻译： 公开了一种无雾光调制聚合物分散液晶（PDLC）材料，其包含双折射聚合物基质，并且具有与分散的液晶微滴相似的各向异性光学特性，使得其透明状态下的PDLC材料呈现折射率 入射光的所有方向匹配的索引，为所有视角提供光学透明，无散射的膜。 根据光阀组件的微滴结构和配置，电光闸可以在场外OFF状态下透明并且在场中不透明的材料，或反之亦然。

公开(公告)号：US4673255A

公开(公告)日：1987-06-16

申请号：US879269

申请日：1986-06-27

申请人： John West ,  Attilio Golemme ,  Joseph W. Doane

发明人： John West ,  Attilio Golemme ,  Joseph W. Doane

IPC分类号： C09K19/54 ,  G02F1/1334 ,  G02F1/13

CPC分类号： G02F1/1334 ,  C09K19/544

摘要： The invention provides a method of controlling the rate of growth of liquid crystal microdroplets formed in situ by the phase separation of a homogeneous solution of liquid crystal and polymer. Temperature, relative concentration and choice of materials determine the microdroplet growth rate and resultant microdroplet size and density. Controlling growth rate allows for fabrication of liquid crystal display devices with optimized display characteristics and response times.

摘要翻译： 本发明提供了通过液相和聚合物的均相溶液的相分离来控制原位形成的液晶微滴的生长速率的方法。 温度，相对浓度和材料选择决定了微滴生长速率和产生的微滴尺寸和密度。 控制生长速率允许制造具有优化的显示特性和响应时间的液晶显示装置。

公开(公告)号：US07170481B2

公开(公告)日：2007-01-30

申请号：US11046487

申请日：2005-01-28

申请人： Joseph W. Doane ,  Asad A. Khan ,  Irina Shiyanovskaya ,  Tod Schneider ,  Oleg Pishnyak ,  Seth E. Green ,  Forrest N. Nicholson ,  Liang-Chy Chien

发明人： Joseph W. Doane ,  Asad A. Khan ,  Irina Shiyanovskaya ,  Tod Schneider ,  Oleg Pishnyak ,  Seth E. Green ,  Forrest N. Nicholson ,  Liang-Chy Chien

IPC分类号： G09G3/36

CPC分类号： B32B27/00 ,  B32B2307/202 ,  B32B2457/202 ,  B44C1/105 ,  G02F1/133305 ,  G02F1/1334 ,  G02F1/13476 ,  G02F1/13718 ,  G02F2001/13478 ,  G02F2001/13613

摘要： The present invention relates to a display film that may be transferred by lamination or otherwise onto a substrate. The display film is formed of a stack of layers that can include different types, arrangements, and functionality within the stack depending upon factors including the characteristics of the substrate (e.g., upper or lower, transparent or opaque, substrates) and addressing of the display (e.g., active or passive matrix, electrical or optical addressing). The layers of the stacked display film include one or more electrode layers and one or more liquid crystal layers and, in addition, may include various combinations of an adhesive layer, preparation layer, casting layer, light absorbing layer, insulation layers, and protective layers. The liquid crystal layer can include cholesteric or other liquid crystal material. The liquid crystal layer can be a dispersion of liquid crystal in a polymer matrix formed by a variety of techniques. The display film may interact with components mounted on or laminated to the substrate, including a solar cell, active matrix backplane and electrodes. The display film may be mounted onto flexible or drapable substrates such as fabric and can itself be drapable. A liquid crystal display includes the display film and a single substrate for supporting the display film. Thus, the invention offers substantial flexibility in fabrication and design that has not been previously possible in the display industry.

摘要翻译： 本发明涉及可以通过层压或其它方式转移到基底上的显示膜。 显示膜由堆叠形成，其可以包括堆叠内的不同类型，布置和功能，这取决于包括衬底的特性（例如，上或下，透明或不透明的衬底）和显示器的寻址的因素 （例如，有源或无源矩阵，电或光寻址）。 堆叠显示膜的层包括一个或多个电极层和一个或多个液晶层，并且还可以包括粘合剂层，制备层，浇铸层，光吸收层，绝缘层和保护层的各种组合 。 液晶层可以包括胆甾型或其它液晶材料。 液晶层可以是通过各种技术形成的聚合物基质中液晶的分散体。 显示膜可以与安装在基板上或层叠在基板上的部件相互作用，包括太阳能电池，有源矩阵背板和电极。 显示膜可以安装在诸如织物的柔性或可悬垂的基底上，并且本身可以是悬垂的。 液晶显示器包括显示膜和用于支撑显示膜的单个基板。 因此，本发明在制造和设计方面提供了在显示器行业中以前不可能的巨大灵活性。

公开(公告)号：US06830789B2

公开(公告)日：2004-12-14

申请号：US09937210

申请日：2001-09-24

申请人： Joseph W. Doane ,  Asad A. Khan ,  Alexander J. Seed

发明人： Joseph W. Doane ,  Asad A. Khan ,  Alexander J. Seed

IPC分类号： C09K1952

CPC分类号： C09K19/588 ,  C07B2200/07 ,  C07D317/20 ,  G02F1/13718 ,  Y10T428/10 ,  Y10T428/1036

摘要： A unique class of chiral additive materials is disclosed for use in cholesteric displays that possess a helical twist power substantially independent of temperature. The additives have a solubility and a helical twist power large enough to be used as a single chiral component with little dilution of the physical properties of the nematic liquid crystal host mixture. The chiral additives may be used in combination with non-chiral additives to provide a helical twisting power substantially independent of temperature suitable for cholesteric displays.

摘要翻译： 公开了一种独特的手性添加剂材料，用于胆固醇显示器，其具有基本上与温度无关的螺旋扭转功率。 这些添加剂具有足够大的溶解度和螺旋扭转力，可用作单向手性组分，同时对向列型液晶主体混合物的物理性能几乎没有稀释。 手性添加剂可以与非手性添加剂组合使用，以提供基本上与适用于胆甾型显示器的温度无关的螺旋捻度。

公开(公告)号：US4688900A

公开(公告)日：1987-08-25

申请号：US776831

申请日：1985-09-17

申请人： Joseph W. Doane ,  Giuseppe Chidichimo ,  Nuno A. P. Vaz

发明人： Joseph W. Doane ,  Giuseppe Chidichimo ,  Nuno A. P. Vaz

IPC分类号： G02F1/13 ,  C09K19/00 ,  C09K19/02 ,  C09K19/54 ,  G02B5/30 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  G09F9/35

CPC分类号： C09K19/00 ,  C09K19/544 ,  G02B5/3025 ,  G02F1/1334

摘要： A light modulating material consisting of droplets of liquid crystal in a clear or light transmitting, flexible plastic sheet or film, such as a cured epoxy. The light modulating material is prepared by dissolving liquid crystal in an uncured resin and then curing the resin so that droplets of liquid crystal spontaneously form and are uniformly dispersed throughout the sheet or film. The new material shows a reversible, high contrast optical response from an opaque scattering mode to a clear light transmission mode when either the temperature of the material is changed to transform the liquid crystal into the isotropic phase or an electric field is applied across the material. The material is optically responsive to strain, whereby under tension it acts to polarize incident light. Curing the material in the presence of an applied field also causes it to act as an electrically addressable polarizer.

摘要翻译： 由透明或透光的柔性塑料片或薄膜（例如固化的环氧树脂）组成的液晶液晶的光调制材料。 光调制材料通过将液晶溶解在未固化的树脂中，然后固化树脂来制备，使得液晶的液滴自发形成并均匀地分散在整个片材或膜上。 当材料的温度改变以将液晶转化为各向同性相或者电场施加在材料上时，新材料显示出从不透明散射模式到透明透光模式的可逆的高对比度光学响应。 该材料对应变光学响应，由此在张力下它用于使入射光偏振。 在施加的场的存在下固化材料也使其作为电寻址偏振器。