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1. 发明申请

WO2011062822A1 POLARIZATION SENSITIVE FRONT PROJECTION SCREEN 审中-公开
标题翻译：极化敏感前投影屏幕
公开(公告)号：WO2011062822A1
公开(公告)日：2011-05-26
申请号：PCT/US2010/056175
申请日：2010-11-10
申请人： 3M INNOVATIVE PROPERTIES COMPANY , WEBER, Michael F. , LIU, Yufeng , NEVITT, Timothy J.
发明人： WEBER, Michael F. , LIU, Yufeng , NEVITT, Timothy J.
IPC分类号： G03B21/60 , G02B5/30
CPC分类号： G03B21/604
摘要： A projection system is disclosed, in which a screen may have improved rejection of ambient light by having a high reflectivity at low angles of incidence for a polarization parallel to that of the projector, a low reflectivity at high angles of incidence for a polarization parallel to that of the projector, and a low reflectivity at both low and high angles of incidence for a polarization perpendicular to that of the projector. In some embodiments, for p-polarized light polarized parallel to the projector, the power reflectivity is high at low angles of incidence and decreases to a low value at high angles of incidence. In some embodiments, for p-polarized light polarized perpendicular to the projector, the power reflectivity is low at low angles of incidence. In some embodiments, for s-polarized light polarized perpendicular to the projector, the power reflectivity remains low at all angles of incidence. In some embodiments, the screen includes a thin film structure that has alternating quarter-wave layers of isotropic and birefringent materials, which are refractive-index-matched for light polarized perpendicular to the projector, which form a high reflector at normal incidence for light polarized parallel to the projector, and which exhibit Brewster's angle effects for p-polarized light polarized parallel to the projector at high angles of incidence. The Brewster's angle effect may be reached by use of a light-scattering layer that increases the effective incident refractive index.
摘要翻译：公开了一种投影系统，其中屏幕可以通过在平行于投影仪的偏振的低入射角具有高反射率而具有改善的环境光的抑制，在与入射角平行的偏振的高入射角处的低反射率投影仪的偏振角以及垂直于投影仪的偏振的低和高入射角的低反射率。在一些实施例中，对于平行于投影仪偏振的p偏振光，在低入射角下的功率反射率高，并且在高入射角下降低到低值。在一些实施例中，对于垂直于投影仪偏振的p偏振光，功率反射率在低入射角下较低。在一些实施例中，对于垂直于投影仪偏振的s偏振光，功率反射率在所有入射角保持较低。在一些实施例中，屏幕包括薄膜结构，其具有交替的各向同性和双折射材料的四分之一波长层，其对于垂直于投影仪偏振的光进行折射率匹配，其在垂直入射时形成用于光偏振的正反射器平行于投影仪，并且以高入射角度平行于投影仪偏振的p偏振光表现出布鲁斯特的角度效应。布鲁斯特的角度效应可以通过使用增加有效入射折射率的光散射层达到。

2. 发明申请

WO2012005879A1 OPTICAL STACK HAVING BIREFRINGENT LAYER OF OPTICALLY SYMMETRICAL CRYSTALLITES 审中-公开
标题翻译：具有光学对称晶体的双层光学堆叠
公开(公告)号：WO2012005879A1
公开(公告)日：2012-01-12
申请号：PCT/US2011/040177
申请日：2011-06-13
申请人： 3M INNOVATIVE PROPERTIES COMPANY , WEBER, Michael, F. , LIU, Yufeng , JOHNSON, Stephen, A. , YUST, David, T.
发明人： WEBER, Michael, F. , LIU, Yufeng , JOHNSON, Stephen, A. , YUST, David, T.
IPC分类号： G02B5/30
CPC分类号： G02B5/3083 , G02B5/305
摘要： An optical stack (400) having a plurality of alternating polymeric layers (401, 402) is described. The alternating layers may be alternating birefringent (syndiotactic polystyrene, sPS) and isotropic (CoPENa) layers, or alternating positively and negatively birefringent layers. Birefringent layers are made using polymers which form optically symmetrical crystallites upon stretching of the polymer. The optical stack has a large refractive index difference in the x- direction (the stretching direction) and small refractive index differences in the y- and z-directions (the non - stretching directions). The optical stack can be made using standard film tentering methods and may be a multilayer reflective polarizer.
摘要翻译：描述了具有多个交替聚合层（401,402）的光学堆叠（400）。交替层可以是交替的双折射（间同立构聚苯乙烯，sPS）和各向同性（CoPENa）层，或交替的正负双折射层。使用在聚合物拉伸时形成光学对称微晶的聚合物制备双折射层。光学堆叠在x方向（拉伸方向）上的折射率差大，y方向和z方向（非拉伸方向）的折射率差小。光学堆叠可以使用标准薄膜拉制方法制成，并且可以是多层反射偏振器。

3. 发明申请

WO2013148124A1 LIGHT CONTROL FILM AND P-POLARIZATION MULTI-LAYER FILM OPTICAL FILM STACK 审中-公开
标题翻译：光控薄膜和P极化多层膜片光膜片
公开(公告)号：WO2013148124A1
公开(公告)日：2013-10-03
申请号：PCT/US2013/030097
申请日：2013-03-11
申请人： 3M INNOVATIVE PROPERTIES COMPANY , LAUTERS, Michael E. , LIU, Yufeng , JOHNSON, Stephen A. , WEBER, Michael F. , TAI, Huiwen
发明人： LAUTERS, Michael E. , LIU, Yufeng , JOHNSON, Stephen A. , WEBER, Michael F. , TAI, Huiwen
IPC分类号： G02B5/20 , G02B5/30
CPC分类号： G02B5/3083 , G02B5/003 , G02B5/305 , G02B2207/123 , G06F21/84
摘要： The present invention generally relates to a film stack having a light-control film, such as a privacy filter, and a p-polarization color shifting film. The present invention also relates to articles, such as displays, incorporating the same.
摘要翻译：本发明一般涉及一种具有光控薄膜（例如隐私滤光片）和p偏振彩色偏移薄膜的薄膜叠层。本发明还涉及包含其的制品，例如显示器。

4. 发明申请

WO2011062929A2 PASSIVE DAYLIGHT-COUPLED BACKLIGHT WITH TURNING FILM HAVING PRISMS WITH CHAOS FOR SUNLIGHT VIEWABLE DISPLAYS 审中-公开
标题翻译：被动日光耦合背光转向膜带有太阳能可视显示屏的混乱
公开(公告)号：WO2011062929A2
公开(公告)日：2011-05-26
申请号：PCT/US2010/056929
申请日：2010-11-17
申请人： 3M INNOVATIVE PROPERTIES COMPANY , BIERNATH, Rolf W. , YI, Jennifer R. , BENOIT, Gilles J. , LIU, Yufeng , WEBER, Michael F.
发明人： BIERNATH, Rolf W. , YI, Jennifer R. , BENOIT, Gilles J. , LIU, Yufeng , WEBER, Michael F.
IPC分类号： G02F1/1335 , G02F1/13357
CPC分类号： G02F1/133605 , G02F1/133606 , G02F2001/133607 , G02F2001/133618
摘要： A passive daylight-coupled display having an LCD panel, a diffuser, a turning film behind the LCD panel, and a curved reflector behind the turning film. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel through the turning film and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. The turning film has prisms with chaos for an improved viewer experience.
摘要翻译：被动日光耦合显示器具有LCD面板，漫射器，在LCD面板后面的转向膜以及在转向膜后面的弯曲反射器。对于无源背光照明，漫射器将日光透射到反射器，该反射器通过转向膜将日光反射到LCD面板，并在LCD面板上提供基本均匀的日光分布以用于背光照明。转向胶片带有棱镜，混沌状态改善了观看者体验。

5. 发明申请

WO2013063235A1 POLARIZATION PRESERVING 3D SCREEN 审中-公开
标题翻译：极化保存3D屏幕
公开(公告)号：WO2013063235A1
公开(公告)日：2013-05-02
申请号：PCT/US2012/061864
申请日：2012-10-25
申请人： 3M INNOVATIVE PROPERTIES COMPANY , LIU, Yufeng , MILLER, Alan P.
发明人： LIU, Yufeng , MILLER, Alan P.
IPC分类号： G03B21/60
CPC分类号： G03B21/604 , G02B27/26
摘要： Projection 3D systems and polarization preserving 3D screens are described that substantially increase polarization contrast ratio and viewing angle. The screen comprises a structured surface having a certain slope distribution, formed by a plurality of beads 120 with a layer 115 disposed thereon, which is coated by a reflective layer 110
摘要翻译：描述了投影3D系统和偏振保持3D屏幕，其大大增加了偏振对比度和视角。屏幕包括具有一定斜率分布的结构化表面，其由多个具有布置在其上的层115的珠120形成，其由反射层110

6. 发明申请

WO2011094350A1 ARTICLE WITH ERASABLE WRITING SURFACE AND USE THEREOF 审中-公开
标题翻译：具有可擦写表面的文章及其使用
公开(公告)号：WO2011094350A1
公开(公告)日：2011-08-04
申请号：PCT/US2011/022628
申请日：2011-01-26
申请人： 3M INNOVATIVE PROPERTIES COMPANY , GUSTAFSON, Frederick, J. , LIU, Lan, H. , YAPEL, Robert, A. , JOHNSON, Mitchell A. F. , YUST, David, T. , LIU, Yufeng , YANG, Yu , MAHLI, David, M.
发明人： GUSTAFSON, Frederick, J. , LIU, Lan, H. , YAPEL, Robert, A. , JOHNSON, Mitchell A. F. , YUST, David, T. , LIU, Yufeng , YANG, Yu , MAHLI, David, M.
IPC分类号： B43L1/00
CPC分类号： B43L1/00
摘要： Erasable articles with textured writing surfaces and methods for making and using same.
摘要翻译：具有纹理书写表面的可擦除物品及其制作和使用方法。

7. 发明申请

WO2009123932A3 TRAFFIC SIGNAL SYSTEMS 审中-公开
公开(公告)号：WO2009123932A3
公开(公告)日：2009-10-08
申请号：PCT/US2009/038613
申请日：2009-03-27
申请人： 3M INNOVATIVE PROPERTIES COMPANY , LIU, Yufeng
发明人： LIU, Yufeng
IPC分类号： F21V9/16
摘要： The present application relates to a traffic light including a light source from which propagates light rays and at least one layer of a structured brightness enhancement film and at least one layer of a light control film. The structured brightness enhancement film and the light control film are positioned adjacent to the light source such that a light ray emitted by the light source propagates through the brightness enhancement film and the light control film.

8. 发明申请

WO2009076284A1 OPTICAL FILM LAMINATES 审中-公开
标题翻译：光学薄膜层压板
公开(公告)号：WO2009076284A1
公开(公告)日：2009-06-18
申请号：PCT/US2008/085858
申请日：2008-12-08
申请人： 3M INNOVATIVE PROPERTIES COMPANY , FRANK, Lowell C. , JOHNSON, Stephen A. , KIM, Ji-Hyung , KO, Byung-Soo , LEE, Ji-Hwa , LIU, Yufeng
发明人： FRANK, Lowell C. , JOHNSON, Stephen A. , KIM, Ji-Hyung , KO, Byung-Soo , LEE, Ji-Hwa , LIU, Yufeng
IPC分类号： B32B7/12 , G02B5/02 , G02F1/1335 , B32B27/36 , B32B3/30
CPC分类号： B32B7/12 , B32B3/30 , B32B7/02 , B32B27/08 , B32B27/36 , B32B2250/244 , B32B2255/10 , B32B2255/26 , B32B2270/00 , B32B2307/412 , B32B2307/42 , B32B2307/516 , B32B2307/518 , B32B2307/546 , B32B2307/71 , B32B2457/20 , B32B2457/202 , G02B5/045 , G02F1/13363 , Y10T428/1086
摘要： Optical film laminates of birefringent polyester films and adhesive are disclosed. The laminates have a thickness of at least 10 mils (0.25 mm). The laminates of the invention are useful in displays having a diagonal of 37in (94 cm) or greater.
摘要翻译：公开了双折射聚酯膜和粘合剂的光学膜层压体。层压板具有至少10密耳（0.25mm）的厚度。本发明的层压板可用于具有37in（94cm）或更大对角线的显示器。

9. 发明申请

WO2012161824A1 PROJECTION SYSTEM 审中-公开
标题翻译：投影系统
公开(公告)号：WO2012161824A1
公开(公告)日：2012-11-29
申请号：PCT/US2012/026768
申请日：2012-02-27
申请人： 3M INNOVATIVE PROPERTIES COMPANY , LIU, Yufeng
发明人： LIU, Yufeng
IPC分类号： H04N13/04
CPC分类号： H04N13/363 , H04N13/324 , H04N13/337 , H04N13/341
摘要： A projection system is disclosed. The projection system includes a projector that sequentially emits first images having a first polarization state for viewing by a left eye and second images having the first polarization state for viewing by a right eye. The projection system further includes a front projection screen that scatters the sequentially emitted first and second images. The front projection screen reflects light having the first polarization state, and absorbs light having a second polarization state, where the second polarization state is perpendicular to the first polarization state. The projection system also includes a viewing device that includes a first shutter that is synchronized with the projector and transmits the first, but not the second, images scattered by the front projection screen. The viewing device also includes a second shutter that is synchronized with the projector and transmits the second, but not the first, images scattered by the front projection screen. Each of the first and second shutters has a pass axis that lies along the first polarization axis and a block axis that lies along the second polarization axis.
摘要翻译：公开了一种投影系统。该投影系统包括：投影机，其依次发射具有用于左眼观看的第一偏振状态的第一图像和具有第一偏振状态的第二图像，以便通过右眼观看。投影系统还包括分散顺序地发射的第一和第二图像的前投影屏幕。前投影屏幕反射具有第一偏振态的光，并且吸收具有第二偏振状态的光，其中第二偏振状态垂直于第一偏振状态。投影系统还包括观察装置，其包括与投影仪同步的第一快门，并且透射第一而不是第二个由前投影屏散射的图像。观看装置还包括与投影仪同步的第二快门，并且透射第二而不是第一个由前投影屏散射的图像。第一和第二百叶窗中的每一个都具有沿着第一偏振轴位于的通过轴线和位于第二偏振轴上的块轴线。

10. 发明申请

WO2012003123A1 MULTILAYER OPTICAL FILM 审中-公开
标题翻译：多层光学膜
公开(公告)号：WO2012003123A1
公开(公告)日：2012-01-05
申请号：PCT/US2011/041394
申请日：2011-06-22
申请人： 3M INNOVATIVE PROPERTIES COMPANY , LIU, Yufeng , YUST, David, T. , JOHNSON, Stephen, A.
发明人： LIU, Yufeng , YUST, David, T. , JOHNSON, Stephen, A.
IPC分类号： G02B5/08 , G02B5/30 , B32B27/36 , B32B27/08
CPC分类号： G02B1/04 , B32B7/02 , B32B27/08 , B32B27/36 , B32B2250/42 , B32B2307/418 , B32B2457/202 , B32B2551/00 , G02B5/0841 , G02B5/305 , Y10T428/24942
摘要： Multilayer optical film that can be used as a reflective polarizer or mirror is disclosed. The multilayer optical film comprises alternating optical layers of polyesters such as PET and PEN, copolymerized with 4,4'-biphenyl dicarboxylate. The multilayer optical film exhibits a high ratio of in-plane to out-of-plane birefringence.
摘要翻译：公开了可用作反射偏振器或反射镜的多层光学膜。多层光学膜包括聚酯如PET和PEN的交替光学层，与4,4'-联苯二羧酸酯共聚。多层光学膜表现出高的平面内平面双折射比。

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