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公开(公告)号：US06335051B1
公开(公告)日：2002-01-01
申请号：US09604491
申请日：2000-06-27
IPC分类号： G02B108
CPC分类号： C08J5/18 , C08J2329/04 , C08K3/02 , C08L29/04 , C08L39/06 , C08L67/00 , G02B5/3033 , G02B5/305 , Y10S428/91 , Y10T428/1041 , Y10T428/249921 , Y10T428/31855 , C08L2666/18 , C08L2666/04
摘要： A dichroic polarizing film is made, for example, by, first combining polyvinyl alcohol and a second polymer, such as, polyvinyl pyrrolidone or a sulfonated polyester, in a solvent. The ratio of polyvinyl alcohol to second polymer is between about 5:1 to 100:1 by weight. The film is coated on a substrate, dried, and then stretched to orient at least a portion of the film. The film incorporates a dichroic dye material, such as iodine, to form a dichroic polarizer. This polarizer may be used in conjunction with a multilayer optical film, such as a reflective polarizer, to form an optical polarizer. The multilayer optical film may contain two or more sets of polyester films, where at least one of the sets is birefringent and orientable by stretching. The polyvinyl alcohol/second polymer film and the multilayer optical film may be simultaneously stretched to orient both polymer films.
摘要翻译： 二色性偏光膜例如可以通过在溶剂中首先将聚乙烯醇和第二聚合物如聚乙烯吡咯烷酮或磺化聚酯混合而制成。 聚乙烯醇与第二聚合物的重量比约为5:1至100:1。 将膜涂覆在基材上，干燥，然后拉伸以取向薄膜的至少一部分。 膜包含二色性染料，如碘，形成二向色偏振片。 该偏振器可以与诸如反射偏振器的多层光学膜结合使用以形成光学偏振器。 多层光学膜可以包含两组或多组聚酯膜，其中至少一个组是双折射的并且可通过拉伸取向。 聚乙烯醇/第二聚合物膜和多层光学膜可以同时拉伸以取向这两种聚合物膜。
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32.发明授权Method of stretching films according to an overbias or overstretch stretch profile 有权根据过度拉伸或拉伸拉伸曲线拉伸薄膜的方法公开(公告)号：US06303067B1
公开(公告)日：2001-10-16
申请号：US09192060
申请日：1998-11-13
申请人： Chiu Ping Wong , Thomas P. Hanschen , Anthony B. Ferguson , William W. Merrill , Fred J. Roska , Jeffery N. Jackson
发明人： Chiu Ping Wong , Thomas P. Hanschen , Anthony B. Ferguson , William W. Merrill , Fred J. Roska , Jeffery N. Jackson
IPC分类号： B29C5514
CPC分类号： B29C55/16
摘要： A method of biaxially stretching a polymeric film according to an overbias or overstretch stretch profile to a final first direction stretch parameter and a final second direction stretch parameter to provide a film having uniform properties. First, a sufficiently high temperature is imparted to the film to allow a significant amount of biaxial stretch. The film is then biaxially tenter stretched to a peak first direction stretch parameter that is at least 1.3 times the final first direction stretch parameter wherein the final first direction stretch parameter is no larger than the final second direction stretch parameter. Finally, the film is retracted in the first direction from the peak first direction stretch parameter to the final first direction stretch parameter to produce a film having uniformity of properties in the first direction.
摘要翻译： 根据过度拉伸或超伸缩拉伸轮廓将聚合物膜双轴拉伸至最终第一方向拉伸参数和最终第二方向拉伸参数以提供具有均匀性质的膜的方法。 首先，赋予膜足够高的温度以允许显着量的双轴拉伸。 然后将膜双轴拉幅拉伸至峰值第一方向拉伸参数，其为最终第一方向拉伸参数的至少1.3倍，其中最终第一方向拉伸参数不大于最终第二方向拉伸参数。 最后，将膜从第一方向拉伸参数的第一方向缩回到最终的第一方向拉伸参数，以产生在第一方向上具有均匀性的膜。
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33.发明授权Film confined to a frame having relative anisotropic expansion characteristics 有权膜限于具有相对各向异性膨胀特性的框架
公开(公告)号：US6160663A
公开(公告)日：2000-12-12
申请号：US164841
申请日：1998-10-01
申请人： William W. Merrill , John C. Harvey , Reney R. Langlois , Michael W. Mills , Rosalind E. Peebles , Fred J. Roska
发明人： William W. Merrill , John C. Harvey , Reney R. Langlois , Michael W. Mills , Rosalind E. Peebles , Fred J. Roska
IPC分类号： G02B7/00 , G02B5/30 , G02F1/13 , G02F1/1333 , G02F1/1335 , G02F1/13363 , G09F9/00 , A47G1/06
CPC分类号： G02F1/133308 , G02F2201/54 , G02F2203/60
摘要： An assembly comprising a film bounded by a frame, the film having a first thermal expansion coefficient along a first direction parallel to the film and a second thermal expansion coefficient along a second direction parallel to the film, wherein thermal expansion of the film compared to that of the frame is greater along the first direction than along the second direction, and wherein the film has a shape at an ambient reference temperature different from that of the frame, the shape of the film being selected to reduce clearance while allowing sufficient room between the film and the frame for thermal expansion in the first direction for temperatures up to a predetermined elevated reference temperature.
摘要翻译： 一种组件，其包括由框架限定的膜，所述膜具有沿着平行于所述膜的第一方向的第一热膨胀系数和沿着与所述膜平行的第二方向的第二热膨胀系数，其中所述膜与所述膜的热膨胀相比 所述框架沿着所述第一方向比沿着所述第二方向更大，并且其中所述膜具有与所述框架不同的环境参考温度的形状，所述膜的形状被选择为减小间隙，同时允许所述膜之间的足够的空间 膜和用于第一方向的热膨胀的框架，用于高达预定升高的参考温度的温度。
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公开(公告)号：US20090218707A1
公开(公告)日：2009-09-03
申请号：US12391002
申请日：2009-02-23
申请人： Carl A. Stover , Timothy J. Hebrink , Yaoqi Liu , William W. Merrill , Bruce A. Nerad , John A. Wheatley
发明人： Carl A. Stover , Timothy J. Hebrink , Yaoqi Liu , William W. Merrill , Bruce A. Nerad , John A. Wheatley
CPC分类号： B29C48/71 , B29C48/08 , B29C48/21 , B29C48/22 , B29C48/255 , B29C48/49 , Y10T428/24942
摘要： Methods and apparatuses are provided for the manufacture of coextruded polymeric multilayer optical films. The multilayer optical films have an ordered arrangement of layers of two or more materials having particular layer thicknesses and a prescribed layer thickness gradient throughout the multilayer optical stack. The methods and apparatuses described allow improved control over individual layer thicknesses, layer thickness gradients, indices of refraction, interlayer adhesion, and surface characteristics of the optical films. The methods and apparatuses described are useful for making interference polarizers, mirrors, and colored films that are optically effective over diverse portions of the ultraviolet, visible, and infrared spectra.
摘要翻译： 提供了用于制造共挤出聚合物多层光学膜的方法和装置。 所述多层光学膜具有层叠的两层或多层具有特定层厚度和规定的层厚度梯度的多层光学叠层的层序排列。 所描述的方法和装置允许改进对单个层厚度，层厚度梯度，折射率，层间粘合和光学膜的表面特性的控制。 所描述的方法和装置可用于制造在紫外线，可见光和红外光谱的不同部分上光学有效的干涉偏振器，反射镜和着色膜。
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35.发明授权公开(公告)号：US07405784B2
公开(公告)日：2008-07-29
申请号：US10365332
申请日：2003-02-12
申请人： Fred J. Roska , Richard C. Allen , Matthew B. Johnson , Steven J. Rhyner , William W. Merrill , Joan M. Strobel , Kevin M. Hamer , Gregory E. Gilligan
发明人： Fred J. Roska , Richard C. Allen , Matthew B. Johnson , Steven J. Rhyner , William W. Merrill , Joan M. Strobel , Kevin M. Hamer , Gregory E. Gilligan
IPC分类号： G02F1/1335
CPC分类号： G02F1/133634 , G02B5/3016 , G02B5/3083
摘要： An optical stack includes a first liquid crystal layer and a j-retarder disposed on the liquid crystal layer. The j-retarder includes a simultaneous biaxally stretched polymeric film being substantially non-absorbing and non-scattering for at least one polarization state of visible light. The j-retarder has x, y, and z orthogonal indices of refraction where at least two of the orthogonal indices of refraction are not equal, an in-plane retardance being 100 nm or less and an out-of-plane retardance being 50 nm or greater.
摘要翻译： 光学堆叠包括设置在液晶层上的第一液晶层和j-延迟器。 j型延迟器包括同时双轴拉伸的聚合物膜，其基本上不吸收并且对于至少一种可见光的偏振状态是非散射的。 j型延迟器具有x，y和z正交折射率，其中正交折射率中的至少两个不相等，面内延迟为100nm以下，面外延迟为50nm 或更大。
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公开(公告)号：US06610356B2
公开(公告)日：2003-08-26
申请号：US09974225
申请日：2001-10-09
IPC分类号： G02B108
CPC分类号： C08J5/18 , C08J2329/04 , C08K3/02 , C08L29/04 , C08L39/06 , C08L67/00 , G02B5/3033 , G02B5/305 , Y10S428/91 , Y10T428/1041 , Y10T428/249921 , Y10T428/31855 , C08L2666/18 , C08L2666/04
摘要： A dichroic polarizing film is made, for example, by, first combining polyvinyl alcohol and a second polymer, such as, polyvinyl pyrrolidone or a sulfonated polyester, in a solvent. The ratio of polyvinyl alcohol to second polymer is between about 5:1 to 100:1 by weight. The film is coated on a substrate, dried, and then stretched to orient at least a portion of the film. The film incorporates a dichroic dye material, such as iodine, to form a dichroic polarizer. This polarizer may be used in conjunction with a multilayer optical film, such as a reflective polarizer, to form an optical polarizer. The multilayer optical film may contain two or more sets of polyester films, where at least one of the sets is birefringent and orientable by stretching. The polyvinyl alcohol/second polymer film and the multilayer optical film may be simultaneously stretched to orient both polymer films.
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公开(公告)号：US06574045B2
公开(公告)日：2003-06-03
申请号：US10062327
申请日：2002-01-31
IPC分类号： G02B2728
CPC分类号： B32B27/08 , B32B27/36 , B32B2307/42 , B32B2367/00 , B32B2551/00 , G02B5/0841 , G02B5/0866 , G02B5/305 , G02B5/3083 , Y10T428/24942 , Y10T428/2495
摘要： A optical body has at least two polymeric materials forming a reflective interface for at least one polarization of light. One optical body is a multilayer optical film that includes birefringent first optical layers and second optical layers interleaved with the first optical layers. Each first optical layer is formed using a polymer, such as a copolymer of polyethylene naphthalate. The second optical layers are formed so that they have a lower in-plane birefringence than the first optical layers for 632.8 nm light. Optical bodies can be used as, for example, polarizers and mirrors. The optical bodies can be formed using polymers that provide better index matching and are more easily protected from UV light without coloring the optical body.
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公开(公告)号：US07843637B2
公开(公告)日：2010-11-30
申请号：US11425761
申请日：2006-06-22
IPC分类号： G02B5/30
CPC分类号： G02B5/3083
摘要： An article for use in light spreading includes a body having first and second surfaces, and first and second in-plane axes that are orthogonal with respect to each other and a third axis that is mutually orthogonal to the first and second in-plane axes in a thickness direction of the body. A portion of the first surface is a birefringent structured surface. The portion is structured such that, when the article receives a light signal within a particular range of wavelengths, the structured surface causes splitting the light signal into a plurality of divergent light signals. The article can be used for color mixing such as in a cavity providing a backlight for LCD devices or other display devices requiring a backlight.
摘要翻译： 用于光扩散的物品包括具有第一和第二表面的主体以及彼此正交的第一和第二平面轴线以及与第一和第二平面内轴线相互正交的第三轴线 身体的厚度方向。 第一表面的一部分是双折射结构化表面。 该部分被构造成使得当物品在特定波长范围内接收光信号时，结构化表面使光信号分裂成多个发散光信号。 该物品可以用于颜色混合，例如在为LCD装置提供背光的空腔或需要背光的其他显示装置中。
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公开(公告)号：US20090326190A1
公开(公告)日：2009-12-31
申请号：US12555421
申请日：2009-09-08
IPC分类号： C08J5/18
CPC分类号： B29C55/08 , B29C35/0277 , B29C55/06 , B29C55/085 , B29D11/00644 , B29K2067/003 , B29K2069/00 , B29K2995/0034 , B29K2995/0051 , C08G63/181 , C08J5/18 , C08J2367/03 , G02B5/3083
摘要： A method of making an optical film includes providing a film, substantially uniaxially orienting the film, and heat setting the oriented film. The film includes a polymeric material capable of developing birefringence.
摘要翻译： 制造光学膜的方法包括提供薄膜，基本上单轴取向薄膜，并且热定形该取向薄膜。 该膜包括能够显影双折射的聚合物材料。
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公开(公告)号：US20090067048A1
公开(公告)日：2009-03-12
申请号：US12267973
申请日：2008-11-10
申请人： James M. Battiato , William W. Merrill , Leland R. Whitney , Kenneth A. Epstein , Robert L. Brott , Rolf W. Biernath , Mitsuko T. O'Neill , Stephen A. Johnson , Matthew B. Johnson , Daniel W. Hennen , William B. Black , Mark B. O'Neill , William J. Bryan , Dennis W. Wilson , Martin E. Denker , David A. Kowitz
发明人： James M. Battiato , William W. Merrill , Leland R. Whitney , Kenneth A. Epstein , Robert L. Brott , Rolf W. Biernath , Mitsuko T. O'Neill , Stephen A. Johnson , Matthew B. Johnson , Daniel W. Hennen , William B. Black , Mark B. O'Neill , William J. Bryan , Dennis W. Wilson , Martin E. Denker , David A. Kowitz
IPC分类号： G02B5/30
CPC分类号： G02B5/045 , B29C43/222 , B29C55/08 , B29C55/16 , B29D11/00278 , B29D11/00663 , B29K2995/0032 , G02B5/3041 , G02F1/133611 , G02F2001/133607
摘要： Films having a structured surface with an engineered feature, such as prism grooves, to be used in displays having a backlight. The films can be arranged in a stack having one or more of the following: birefringent brightness enhancement films, non-birefringent brightness enhancement films, polarizers, diffusers, birefringent turning films, and non-birefringent turning films. Those films can be arranged in any order from the backlight to a viewer.
摘要翻译： 具有具有工程特征的结构化表面的膜，例如棱镜凹槽，用于具有背光的显示器中。 膜可以布置成具有以下一个或多个的叠层：双折射亮度增强膜，非双折射亮度增强膜，偏振器，扩散器，双折射转动膜和非双折射转动膜。 这些电影可以从背光到观看者的任何顺序排列。
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