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公开(公告)号：US11947135B2
公开(公告)日：2024-04-02
申请号：US16768910
申请日：2018-12-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel J. Schmidt , Caleb T. Nelson , Kevin W. Gotrik , Raymond J. Kenney , John A. Wheatley , Kenneth A. Epstein , Gary T. Boyd , Corey D. Balts
Abstract: A light control film is described comprising alternating transmissive regions and absorptive regions disposed between a light input surface and a light output surface. The absorptive regions have an aspect ratio of at least 30. In some embodiments, the alternating transmissive regions and absorptive regions have a transmission as measured with a spectrophotometer at a viewing angle of 0 degrees of at least 35, 40, 45, or 50% for a wavelength of the range 320-400 nm (UV) and/or at least 65, 70, 75, or 80% for a wavelength of the range 700-1400 nm (NIR). In another embodiment, the absorptive regions block light at the light input surface and light output surface and the maximum surface area that is blocked is less than 20% of the total alternating transmissive regions and absorptive regions. Also described are various optical communication systems comprising the light control films described herein and methods.
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22.发明申请公开(公告)号：US20210278586A1
公开(公告)日：2021-09-09
申请号：US16619300
申请日：2018-06-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Quinn D. Sanford , Kenneth A. Epstein , Matthew B. Johnson , Gary T. Boyd
Abstract: Backlights are described. In particular, backlights including wide-web turning films and reflective polarizers having quarter-wave retarders are disclosed. Such configurations can provide turning film systems with improved luminance uniformity for large format displays.
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公开(公告)号：US20210165138A1
公开(公告)日：2021-06-03
申请号：US17174548
申请日：2021-02-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth A. Epstein , Nicholas A. Johnson , Michael E. Lauters , Shannon L. Siefken , Gary T. Boyd
IPC: G02B5/04 , F21V5/08 , G02F1/13 , G02F1/13357
Abstract: The disclosure describes asymmetric turning films (ATFs) that may be used in conjunction with multiple light sources in a liquid crystal display assembly to provide multiple different characteristic output distributions of light. In some examples, the ATFs include a structured surface defining a plurality of microstructures having two or more faces with each face configured to reflect light in different directions. The microstructure may define a microstructure axis and an angle gradient characterizing the rotation of the microstructure axis across the structured surface of the ATF.
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公开(公告)号：US20200341173A1
公开(公告)日：2020-10-29
申请号：US16768910
申请日：2018-12-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel J. Schmidt , Caleb T. Nelson , Kevin W. Gotrik , Raymond J. Kenney , John A. Wheatley , Kenneth A. Epstein , Gary T. Boyd , Corey D. Balts
Abstract: A light control film is described comprising alternating transmissive regions and absorptive regions disposed between a light input surface and a light output surface. The absorptive regions have an aspect ratio of at least 30. In some embodiments, the alternating transmissive regions and absorptive regions have a transmission as measured with a spectrophotometer at a viewing angle of 0 degrees of at least 35, 40, 45, or 50% for a wavelength of the range 320-400 nm (UV) and/or at least 65, 70, 75, or 80% for a wavelength of the range 700-1400 nm (NIR). In another embodiment, the absorptive regions block light at the light input surface and light output surface and the maximum surface area that is blocked is less than 20% of the total alternating transmissive regions and absorptive regions. Also described are various optical communication systems comprising the light control films described herein and methods.
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公开(公告)号：US20160118448A1
公开(公告)日：2016-04-28
申请号：US14895046
申请日：2014-06-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth A. Epstein , Adam D. Haag , Seong Taek Lee , Sergey Lamansky
CPC classification number: H01L27/3244 , H01L51/5268 , H01L51/5271 , H01L51/5281 , H01L51/5284
Abstract: The disclosure relates to emissive displays and, in particular, to emissive displays that include a top surface (111) that has a diffusely reflective inactive surface (116) adjacent a diffusely reflective emissive surface (114). The emissive display further includes a polarization selective antireflection film component (120) that includes a linear absorbing polarizer (126), a reflective polarizer (124), and a quarter-wave retarder (122), and is positioned separated from the top surface. The disclosure also relates to issues arising from these antireflection film components, such as brightness efficiency loss and image degradation such as pixel blur. The enhanced antireflection stack performs well in commercial OLED displays, with a 20% or greater brightness gain, a 30% or greater ambient light reflectance gain and no visually apparent image degradation.
Abstract translation: 本公开涉及发射显示器，特别是涉及包括邻近漫反射发射表面（114）的具有漫反射不活泼表面（116）的顶表面（111）的发射显示器。 发射显示器还包括偏振选择性抗反射膜部件（120），其包括线性吸收偏振器（126），反射偏振器（124）和四分之一波长延迟器（122），并且与顶表面分离定位。 本公开还涉及由这些抗反射膜组件产生的问题，例如亮度效率损失和图像劣化，例如像素模糊。 增强的抗反射叠层在商业OLED显示器中表现良好，具有20％或更大的亮度增益，30％或更大的环境光反射增益，并且没有视觉上明显的图像劣化。
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Patent Agency Ranking
公开(公告)号：US11885989B2
公开(公告)日：2024-01-30
申请号：US16772498
申请日：2018-12-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Daniel J. Schmidt , Caleb T. Nelson , Kevin W. Gotrik , Raymond J. Kenney , John A. Wheatley , Kenneth A. Epstein , Gary T. Boyd , Corey D. Balts
CPC classification number: G02B5/0263 , G02B5/286 , G02B6/0053 , G02B5/305 , G02B2207/123
Abstract: A light control film, comprises a light input surface and alight output surface opposite the light input surface. Alternating transmissive regions and absorptive regions are disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and the alternating transmissive region and absorptive regions have a relative transmission at a viewing angle of 0 degrees of at least 75%.
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公开(公告)号：US11708962B2
公开(公告)日：2023-07-25
申请号：US17701881
申请日：2022-03-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , Kenneth A. Epstein
IPC: F21V14/00 , G02B5/02 , G02F1/1335 , G02F1/133 , G02F1/1334 , G02F1/137
CPC classification number: F21V14/003 , G02B5/0221 , G02B5/0278 , G02F1/137 , G02F1/1334 , G02F1/13306 , G02F1/133504 , G02F1/13756
Abstract: An optical system including a lighting component and a switchable diffuser in optical communication with the lighting component. The optical system may further include a low absorbing optical component. At least one outer surface of the switchable diffuser and/or the low absorbing optical component includes light redirecting structures. When the switchable diffuser is in a first state and the optical system produces a light output, the light redirecting structures are configured to increase the full width at half-maximum (FWHM) of the light output of the optical system in at least one direction by at least 5 degrees relative to that of an otherwise equivalent optical system that does not include the light redirecting structures.
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公开(公告)号：US20220214027A1
公开(公告)日：2022-07-07
申请号：US17701881
申请日：2022-03-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , Kenneth A. Epstein
IPC: F21V14/00 , G02B5/02 , G02F1/133 , G02F1/1334 , G02F1/1335 , G02F1/137
Abstract: An optical system including a lighting component and a switchable diffuser in optical communication with the lighting component. The optical system may further include a low absorbing optical component. At least one outer surface of the switchable diffuser and/or the low absorbing optical component includes light redirecting structures. When the switchable diffuser is in a first state and the optical system produces a light output, the light redirecting structures are configured to increase the full width at half-maximum (FWHM) of the light output of the optical system in at least one direction by at least 5 degrees relative to that of an otherwise equivalent optical system that does not include the light redirecting structures.
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公开(公告)号：US11307333B2
公开(公告)日：2022-04-19
申请号：US16475186
申请日：2018-01-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein
Abstract: An optical system including a light guide and a turning film that includes a first major surface, where the first major surface is substantially smooth and a second major surface including a plurality of asymmetric microstructures each respective asymmetric microstructure including a first side, where the first side is substantially planar, and a second side including a first surface segment defining a substantially planar surface and a second surface segment defining a non-planar surface.
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公开(公告)号：US10371350B2
公开(公告)日：2019-08-06
申请号：US15300707
申请日：2015-03-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Gilles J. Benoit , John A. Wheatley , Kenneth A. Epstein , David Scott Thompson , Michael E. Lauters
Abstract: Optical systems are disclosed. More particularly, optical systems including an asymmetric turning film (110) with at least a first (120) and second light source (130) are disclosed. Selection of geometries for the asymmetric turning film can enable different output viewing angles depending on the selective illumination of the first light source, the second light source, or both. The optical systems disclosed may be suitable in both luminaires and displays.
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