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。

公开(公告)号：US06358457B1

公开(公告)日：2002-03-19

申请号：US09192059

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 ,  B29C55/12 ,  B29K2023/12 ,  C08J5/18 ,  C08J2323/02 ,  C08J2323/10 ,  C09J7/243 ,  C09J2423/006 ,  Y10T428/28 ,  Y10T428/2839 ,  Y10T428/2848 ,  Y10T428/31938

摘要： A method of biaxially stretching a polymeric film along an overbias stretch profile having the steps of (a) imparting a sufficiently high temperature to the film to allow a significant amount of biaxial stretch; and (b) biaxial tenter stretching the film to a final first direction stretch parameter and a final second direction stretch parameter, wherein at least 75% of the final first direction stretch parameter is attained before no more than 50% of the final second direction stretch parameter is attained, and wherein the final first direction stretch parameter is no greater than the final second direction stretch parameter.

摘要翻译： 一种沿着过碱性拉伸轮廓双轴拉伸聚合物膜的方法，该方法具有以下步骤：（a）赋予膜足够高的温度以允许显着量的双轴拉伸; 和（b）双轴拉幅机将薄膜拉伸到最终的第一方向拉伸参数和最终的第二方向拉伸参数，其中在不超过最终第二方向拉伸的50％之前达到最终第一方向拉伸参数的至少75％ 参数，其中最终的第一方向拉伸参数不大于最终的第二方向拉伸参数。

公开(公告)号：US07132065B2

公开(公告)日：2006-11-07

申请号：US10364940

申请日：2003-02-12

申请人： Richard C. Allen ,  Matthew B. Johnson ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer ,  John M. Klaeser ,  Sebastian F. Zehentmaier

发明人： Richard C. Allen ,  Matthew B. Johnson ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer ,  John M. Klaeser ,  Sebastian F. Zehentmaier

IPC分类号： B29C55/14

CPC分类号： B29C55/165

摘要： A process for making an optical film includes stretching a polyolefin film in a first direction and stretching the polyolefin film in a second direction different than the first direction forming a biaxially stretched polyolefin film. At least a portion of the stretching of the polyolefin film in the second direction occurs simultaneous with the stretching of the polyolefin film in the first direction. The biaxially stretched polyolefin film has a length and a width and substantially non-absorbing and non-scattering for at least one polarization state of visible light. The biaxially stretched polyolefin film 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： 制造光学膜的方法包括在第一方向拉伸聚烯烃膜并沿与第一方向不同的第二方向拉伸聚烯烃膜形成双轴向拉伸的聚烯烃膜。 聚烯烃膜在第二方向的拉伸的至少一部分与聚烯烃膜沿第一方向的拉伸同时发生。 双轴拉伸聚烯烃膜具有长度和宽度，并且对于至少一种可见光的偏振状态具有基本上不吸收和非散射性。 双轴拉伸聚烯烃膜具有x，y和z正交折射率，其中至少两个正交折射率不相等，面内延迟为100nm以下，面外延迟为50 nm以上。

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。

公开(公告)号：US07110072B2

公开(公告)日：2006-09-19

申请号：US10767708

申请日：2004-01-29

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 biaxially 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 absolute value for an out-of-plane retardance being 55 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或更小，并且平面外的绝对值 延迟为55nm以上。

公开(公告)号：US07099083B2

公开(公告)日：2006-08-29

申请号：US10770604

申请日：2004-01-29

申请人： Matthew B. Johnson ,  Richard C. Allen ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer

发明人： Matthew B. Johnson ,  Richard C. Allen ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer

IPC分类号： G02B27/28 ,  G02B5/30

CPC分类号： G02F1/133634 ,  B29C55/165 ,  G02B5/3083

摘要： An optical film includes a layer of simultaneous biaxially stretched polyolefin film that is substantially non-absorbing and non-scattering for at least one polarization state of visible light. The layer has x, y, and z orthogonal indices of refraction where at least two of the orthogonal indices of refraction are not equal. The layer has an in-plane retardance of 100 nm or less and an absolute value of an out-of-plane retardance being 55 nm or greater.

摘要翻译： 光学膜包括同时双轴拉伸聚烯烃膜的层，其对于可见光的至少一种极化状态基本上不吸收和非散射。 该层具有x，y和z正交的折射率，其中至少两个正交折射率不相等。 该层的面内延迟为100nm以下，平面外延迟的绝对值为55nm以上。

公开(公告)号：US06965474B2

公开(公告)日：2005-11-15

申请号：US10365250

申请日：2003-02-12

申请人： Matthew B. Johnson ,  Richard C. Allen ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer

发明人： Matthew B. Johnson ,  Richard C. Allen ,  Fred J. Roska ,  Steven J. Rhyner ,  William W. Merrill ,  Joan M. Strobel ,  Kevin M. Hamer

IPC分类号： G02B5/30 ,  G02B27/28

CPC分类号： G02F1/133634 ,  B29C55/165 ,  G02B5/3083

摘要： An optical film includes a layer of simultaneous biaxially stretched polyolefin film that is substantially non-absorbing and non-scattering for at least one polarization state of visible light. The layer has x, y, and z orthogonal indices of refraction where at least two of the orthogonal indices of refraction are not equal. The layer has an in-plane retardance of 100 nm or less and an out-of-plane retardance of 50 nm or greater.

摘要翻译： 光学膜包括同时双轴拉伸聚烯烃膜的层，其对于可见光的至少一种极化状态基本上不吸收和非散射。 该层具有x，y和z正交的折射率，其中至少两个正交折射率不相等。 该层的面内延迟为100nm以下，面外延迟为50nm以上。

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。

公开(公告)号：US07037461B1

公开(公告)日：2006-05-02

申请号：US09469972

申请日：1999-12-21

申请人： Martin E. Denker ,  Joseph T. Bartusiak ,  Anthony B. Ferguson ,  Thomas P. Hanschen ,  Jeffery N. Jackson ,  William Ward Merrill ,  Susan J. Newhouse ,  Fred J. Roska ,  Richard J. Thompson ,  Chiu Ping Wong

发明人： Martin E. Denker ,  Joseph T. Bartusiak ,  Anthony B. Ferguson ,  Thomas P. Hanschen ,  Jeffery N. Jackson ,  William Ward Merrill ,  Susan J. Newhouse ,  Fred J. Roska ,  Richard J. Thompson ,  Chiu Ping Wong

IPC分类号： B29C55/16 ,  B29C55/06 ,  B29C55/08 ,  B29C35/16 ,  B29C71/02

CPC分类号： B29C55/165

摘要： A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a polymeric film in a tenter that grasps the film with a plurality of clips along the opposing edges of the film and propels the clips to thereby stretch the film. The tenter includes driven clips and idler clips, with at least one idler clip between respective pairs of driven clips. The cooling is done so as to improve the uniformity of the clip spacing relative to the spacing obtained at otherwise identical process conditions without such cooling.

摘要翻译： 一种拉伸薄膜的方法，其中薄膜的宽度的全部或一部分在拉伸期间或之后被冷却，从而提高薄膜的均匀性。 包括在拉幅机中拉伸聚合物膜，该拉幅机通过沿着膜的相对边缘的多个夹子来抓住膜并推动夹子从而拉伸膜。 拉幅机包括驱动夹和惰轮夹，在相应的驱动夹子对之间至少有一个惰轮夹。 进行冷却以提高夹子间隔的均匀性，相对于在没有这种冷却的情况下以相同的工艺条件获得的间隔。

公开(公告)号：US4867937A

公开(公告)日：1989-09-19

申请号：US14977

申请日：1987-02-17

申请人： Hin-Mo Li ,  Fred J. Roska

发明人： Hin-Mo Li ,  Fred J. Roska

IPC分类号： B29C55/02 ,  B29C55/00 ,  B29C55/14 ,  B29K67/00 ,  B29L7/00

CPC分类号： B29C55/005 ,  B29C55/143 ,  B29K2067/00

摘要： The invention provides a two-step process for increasing the modulus of a film in a desired direction, by drawing the film at between about 10.degree. C. above T.sub.g and 40.degree. C. below T.sub.m at a draw ratio of between 1.05 and 5.5 and then drawing the film in the same direction at between about 5.degree. C. and 35.degree. C. below T.sub.m at a draw ratio of between about 1.05 and 2.5.