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公开(公告)号：US20240210600A1
公开(公告)日：2024-06-27
申请号：US18557199
申请日：2022-04-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Shu-Ching Fan , Gary T. Boyd , David Scott Thompson , Caleb T. Nelson , Tri D. Pham , Adam T. Ringberg , Daniel J. Schmidt , Owen M. Anderson
Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis and substantially coextensive with the optical film. The optical film includes a first layer including a microstructured first major surface where the microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of spaced apart optically absorptive regions extending along the first axis and along a direction substantially normal to a major surface of the light control film. At least one of the optical film or at least one layer disposed between the optical film and the light control film includes at least one reflection mitigation element.
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公开(公告)号：US20240142673A1
公开(公告)日：2024-05-02
申请号：US17769280
申请日：2020-10-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Gary T. Boyd , Daniel J. Schmidt , Caleb T. Nelson , Owen M. Anderson , Tri D. Pham
Abstract: An optical film has a major surface including a plurality of microstructures. Each microstructure includes an optical facet and a sidewall meeting the optical facet at a ridge of the microstructure. The optical facet and the sidewall define an oblique angle therebetween. For each microstructure in at least a majority of the microstructures, an optically absorptive layer is disposed on the sidewall. The optical film can include a polymeric layer having a microstructured surface at least partially coated with an inorganic optically transparent layer. The optically absorptive layer can an average thickness t where 100 nm
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公开(公告)号：US20240118463A1
公开(公告)日：2024-04-11
申请号：US18536915
申请日：2023-12-12
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
CPC classification number: G02B5/0263 , G02B5/286 , G02B6/0053 , G02B5/305
Abstract: A light control film comprises a light input surface and a light 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：US11874560B2
公开(公告)日：2024-01-16
申请号：US17597398
申请日：2020-07-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd
IPC: G02F1/13357 , G02F1/1335
CPC classification number: G02F1/133611 , G02F1/13362 , G02F1/133536 , G02F1/133603 , G02F1/133605 , G02F1/133607
Abstract: A backlight for providing uniform illumination to a display panel includes a plurality of discrete light sources. A multilayer polymeric partial reflector is disposed on the plurality of discrete light sources. For substantially normally incident light the partial reflector includes a reflection band includes a blue wavelength, a reflectance greater than about 80% at the blue wavelength, a left band edge between about 370 nm to about 420 nm, a right band edge between about 500 nm and 600 nm, and an average transmission between about 20% to about 80% for visible wavelengths greater than the right band edge. A reflective polarizer is disposed on the partial reflector. For substantially normally incident light having the blue wavelength, the reflective polarizer reflects at least 60% of the light having the first polarization state and transmits at least 60% of the light having the second polarization state.
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公开(公告)号：US20220269136A1
公开(公告)日：2022-08-25
申请号：US17597398
申请日：2020-07-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd
IPC: G02F1/13357 , G02F1/1335
Abstract: A backlight for providing uniform illumination to a display panel includes a plurality of discrete light sources. A multilayer polymeric partial reflector is disposed on the plurality of discrete light sources. For substantially normally incident light the partial reflector includes a reflection band includes a blue wavelength, a reflectance greater than about 80% at the blue wavelength, a left band edge between about 370 nm to about 420 nm, a right band edge between about 500 nm and 600 nm, and an average transmission between about 20% to about 80% for visible wavelengths greater than the right band edge. A reflective polarizer is disposed on the partial reflector. For substantially normally incident light having the blue wavelength, the reflective polarizer reflects at least 60% of the light having the first polarization state and transmits at least 60% of the light having the second polarization state.
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Patent Agency Ranking
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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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：US20180143360A1
公开(公告)日：2018-05-24
申请号：US15568016
申请日：2016-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Matthew H. Frey , Craig R. Schardt , Gary T. Boyd , Eric J. Borchers , Nicholas D. Petkovich
IPC: G02B5/30 , F21V8/00 , G02F1/1335 , B82Y15/00 , C01B32/158
CPC classification number: G02B5/30 , B82Y15/00 , C01B32/158 , G02B5/02 , G02B5/124 , G02B6/0056 , G02B2207/101 , G02B2207/107 , G02F1/133536 , G02F1/133606 , G02F1/13362 , G02F2203/02
Abstract: An optical construction includes a reflective polarizer layer having a first pass axis and an absorptive polarizer layer having a second pass axis that is substantially aligned with the first pass axis. At least one electrically conductive light scattering layer is arranged between the reflective polarizer layer and the absorptive polarizer layer.
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公开(公告)号：US20180100963A1
公开(公告)日：2018-04-12
申请号：US15568897
申请日：2016-04-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Robert M. Emmons , Kenneth A. Epstein
CPC classification number: G02B6/0056 , G02B5/0231 , G02B5/3083 , G02B6/0025 , G02B6/0053 , G02B6/0055 , G02B6/0091
Abstract: Optical films are described. In particular, optical films that include top and bottom structured surfaces are described. Films that may be suitable for use in backlights as turning films or recycling films are also described. Optical films described may include reflective polarizers and optically birefringent substrates.
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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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