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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：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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公开(公告)号：US10247872B2
公开(公告)日：2019-04-02
申请号：US15728353
申请日：2017-10-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Michael J. Sykora , Michael E. Lauters , John A. Wheatley
Abstract: Dual-sided optical films have extended split spreading structures formed on one major surface, and extended prisms formed on an opposite major surface. One portion of each split spreading structure has a low light spreading characteristic, and another portion has a high light spreading characteristic. For each split spreading structure, the low light spreading portion may be disposed alongside the high light spreading portion. The split spreading structures may be arranged in a one-to-one correspondence with the prisms. Light that enters a given prism from one inclined surface thereof can be associated primarily with light transmitted through the low light spreading portion of the split spreading structure, and light that enters the given prism from the other inclined surface thereof can be associated primarily with light transmitted through the high light spreading portion.
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公开(公告)号：US20170116930A1
公开(公告)日：2017-04-27
申请号：US15314913
申请日：2015-05-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Kenneth A. Epstein , James M. Hillis , Michael E. Lauters
CPC classification number: G09G3/3406 , G02B6/0046 , G02B6/0053 , G02B6/0068 , G02F1/1323 , G02F1/133615 , G02F2001/133607 , G09G2320/028 , H04N2013/403
Abstract: Backlights are disclosed. More particularly, temporally multiplexed backlights utilizing asymmetric turning films are disclosed. The disclosed backlights are capable of displaying a primary image to on-axis viewers while simultaneously providing a secondary image to off-axis viewers.
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公开(公告)号：US10761320B2
公开(公告)日：2020-09-01
申请号：US15775946
申请日：2016-11-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brett J. Sitter , Matthew M. Philippi , Mary M. Pichotta , Chi Zhang , Daniel W. Hennen , Gary T. Boyd , Michael E. Lauters
Abstract: An optical stack including a periodically varying optical film layer and a grating assembly for reducing moiré is described. The grating assembly includes first and second layers where an interface between the first and second layers define a grating having a peak to valley height and an index contrast. The index contrast multiplied by the peak to valley height may be between 150 nm and 350 nm and the grating has a pitch in the range of 2 micrometers to 50 micrometers. Each of the first and second layers may be viscoelastic or elastomeric adhesive layers, crosslinked resin layers, or soluble resin layers.
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Patent Agency Ranking
公开(公告)号：US10388230B2
公开(公告)日：2019-08-20
申请号：US15314913
申请日：2015-05-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nicholas A. Johnson , Kenneth A. Epstein , James M. Hillis , Michael E. Lauters
Abstract: Backlights are disclosed. More particularly, temporally multiplexed backlights utilizing asymmetric turning films are disclosed. The disclosed backlights are capable of displaying a primary image to on-axis viewers while simultaneously providing a secondary image to off-axis viewers.
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公开(公告)号：US20180329207A1
公开(公告)日：2018-11-15
申请号：US15775946
申请日：2016-11-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brett J. Sitter , Matthew M. Philippi , Mary M. Pichotta , Chi Zhang , Daniel W. Hennen , Gary T. Boyd , Michael E. Lauters
CPC classification number: G02B27/0018 , B32B25/042 , G02B5/003 , G02B5/0215 , G02B5/1861
Abstract: An optical stack including a periodically varying optical film layer and a grating assembly for reducing moiré is described. The grating assembly includes first and second layers where an interface between the first and second layers define a grating having a peak to valley height and an index contrast. The index contrast multiplied by the peak to valley height may be between 150 nm and 350 nm and the grating has a pitch in the range of 2 micrometers to 50 micrometers. Each of the first and second layers may be viscoelastic or elastomeric adhesive layers, crosslinked resin layers, or soluble resin layers.
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公开(公告)号：US09229261B2
公开(公告)日：2016-01-05
申请号：US14348373
申请日：2012-09-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan L. Schwartz , Mark J. Pellerite , Daniel W. Hennen , Marc D. Radcliffe , Michael L. Steiner , Marie A. Boulos , Michael E. Lauters , Gary T. Boyd , John P. Baetzold , John J. Stradinger , Vivian W. Jones
IPC: G02F1/1334 , G02B26/00 , G02F1/13 , G02F1/1347 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/1334 , G02B26/004 , G02F1/1323 , G02F1/133377 , G02F1/133524 , G02F1/13476
Abstract: An electronically switchable privacy film suitable for use in display devices are described. The electronically switchable privacy film comprises a pair of mutually opposing transparent electrodes; an optically transparent microstructured layer disposed between the transparent electrodes, the microstructured layer comprising a plurality of microstructured ribs extending across a surface thereof such that the microstructured ribs form an alternating series of ribs and channels; and electronically switchable material disposed in the channels, the electronically switchable material being capable of modulation between high and low light scattering states upon application of an electric field across the transparent electrodes.
Abstract translation: 描述适用于显示装置的可电切换隐私膜。 电子可切换隐私膜包括一对相互相对的透明电极; 设置在所述透明电极之间的光学透明微结构化层，所述微结构层包括跨越其表面延伸的多个微结构肋，使得所述微结构肋形成交替的一系列肋和通道; 以及设置在所述通道中的电子可切换材料，所述电子可切换材料能够在跨越所述透明电极的电场施加时在高和低光散射状态之间进行调制。
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公开(公告)号：US20140286044A1
公开(公告)日：2014-09-25
申请号：US13850277
申请日：2013-03-25
Applicant: 3M Innovative Properties Company
Inventor： Nicholas A. Johnson , Michael J. Sykora , Michael E. Lauters , John A. Wheatley
CPC classification number: G02B6/0053 , F21V5/02 , G02B3/005 , G02B3/0068 , G02B5/021 , G02B5/0278 , G02B5/045
Abstract: Dual-sided optical films have extended split spreading structures formed on one major surface, and extended prisms formed on an opposite major surface. One portion of each split spreading structure has a low light spreading characteristic, and another portion has a high light spreading characteristic. For each split spreading structure, the low light spreading portion may be disposed alongside the high light spreading portion. The split spreading structures may be arranged in a one-to-one correspondence with the prisms. Light that enters a given prism from one inclined surface thereof can be associated primarily with light transmitted through the low light spreading portion of the split spreading structure, and light that enters the given prism from the other inclined surface thereof can be associated primarily with light transmitted through the high light spreading portion.
Abstract translation: 双面光学膜具有形成在一个主表面上的延伸的分裂扩展结构，并且在相对的主表面上形成延伸的棱镜。 每个分裂扩展结构的一部分具有低的光扩散特性，另一部分具有高的光扩散特性。 对于每个分割扩展结构，低光扩展部分可以与高光扩展部分一起设置。 分裂扩展结构可以与棱镜一一对应地布置。 从其一个倾斜表面进入给定棱镜的光可以主要与透射通过分裂扩展结构的低光扩展部分的光相关联，并且从另一倾斜表面进入给定棱镜的光可以主要与透光的 通过高光扩展部分。
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公开(公告)号：US10955592B2
公开(公告)日：2021-03-23
申请号：US16346647
申请日：2017-11-02
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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