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公开(公告)号：US20210021050A1
公开(公告)日：2021-01-21
申请号：US17043432
申请日：2019-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Stephen J. Etzkorn , Ronald D. Jesme , Dipankar Ghosh , Mohsen Salehi , Guanglei Du , John A. Wheatley
Abstract: Gradient permittivity films are described. In particular, gradient permittivity films including a plurality of layers each having a thickness where at least one layer is perforated and has a different air volume fraction from another of the plurality of layers by at least 0.05. Such films may be useful in improving the signal to noise ratio for transmitting and receiving units operating between 20 GHz and 300 GHz behind a protective cover.
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公开(公告)号：US10606124B2
公开(公告)日：2020-03-31
申请号：US16308248
申请日：2017-06-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathaniel K. Naismith , Stephen J. Etzkorn , David A. Rosen
IPC: G02F1/1335 , F21V8/00
Abstract: Recycling backlights are described. More specifically, recycling backlights including structured reflectors are described. The structured reflector redirects light at least for angles emitted from a lightguide and retroreflects other light, the retroreflected light having incidence angles not emitted by the lightguide.
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公开(公告)号：US20230413653A1
公开(公告)日：2023-12-21
申请号：US18329745
申请日：2023-06-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Etzkorn , Michael L. Steiner , Kevin W. Gotrik , Luke A. Schroeder , Nicholas A. Johnson , John A. Wheatley
CPC classification number: H10K59/8793 , G02F1/0136 , G02B27/286 , G02F1/035 , F21Y2115/10 , F21V9/14 , H01L25/13 , H01L25/0753 , G02F2202/20 , F21V14/003
Abstract: The present disclosure provides a display system. The display system includes a backlight configured to emit substantially collimated polarized light from an emission surface thereof. The emitted polarized light is polarized along a polarization direction. The display system further includes a display panel configured to receive an illumination light and form an image. The display system further includes a grating system substantially coextensive in length and width with the display panel and the emission surface. The grating system includes a plurality of substantially parallel elongated features extending along an in-plane first direction and arranged along an orthogonal in-plane second direction. The grating system is configured to receive and transmit an incident polarized light as a first transmitted light having different first and second polarization states in response to different respective first and second signals applied to the grating system.
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公开(公告)号：US20230350262A1
公开(公告)日：2023-11-02
申请号：US18303643
申请日：2023-04-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kevin W. Gotrik , Stephen J. Etzkorn , Adam T. Ringberg , Owen M. Anderson , Vivian W. Jones , Nicholas A. Johnson , Bharat R. Acharya
IPC: G02F1/00 , G02F1/16755 , G02F1/167
CPC classification number: G02F1/167 , G02F1/0063 , G02F1/16755
Abstract: An optical component includes a substrate and a plurality of structures formed on a first major surface of the substrate and extending from the first major surface along a thickness direction of the optical component. The optical component can be assembled with another optical component to form a light control film. A light control film includes first and second optical components including respective pluralities of first and second structures formed on, and extending from, respective first and second substrates. The first and second optical components are assembled so that the first and second structures are disposed between the first and second substrates and interleaved to form a plurality of pairs of adjacent first and second structures. For each of at least some of the pairs, the adjacent first and second structures define an optical cavity therebetween substantially filled with a light absorbing material.
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公开(公告)号：US20230341715A1
公开(公告)日：2023-10-26
申请号：US18130556
申请日：2023-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Etzkorn , Michael L. Steiner , Kevin W. Gotrik , Luke A. Schroeder , Nicholas A. Johnson , John A. Wheatley
CPC classification number: G02F1/1323 , G02B6/0055 , G02B6/0076
Abstract: A display system includes a display configured to emit an image for viewing by a viewer. The display system further includes one or more phase lens layers disposed on, and substantially co-extensive in length and width with the display. Each of the one or more phase lens layers is configured to have different first and second focal lengths for different respective first and second polarization states. The display system further includes a first polarization modifying layer disposed between the display and the one or more phase lens layers. The first polarization modifying layer is configured to receive the emitted image and transmit a transmitted image. The transmitted image has the first and second polarization states in response to different respective first and second signals applied to the first polarization modifying layer.
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Patent Agency Ranking
公开(公告)号：US10698138B2
公开(公告)日：2020-06-30
申请号：US15568832
申请日：2016-04-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Tri D. Pham , Nicholas A. Johnson , Oanh V. Pham , Sara S. Merritt , Stephen J. Etzkorn , Haiyan Zhang , Corey D. Balts , Joseph T. Aronson
IPC: G02B5/02 , G02B13/20 , F21V8/00 , G02B3/00 , G02B1/14 , C25D3/04 , C25D3/38 , C25D5/12 , G02F1/13357 , G02B5/04
Abstract: A diffuser including opposing structured first and second major surfaces is described. The first major surface includes a first plurality of surface structures providing a uniform first haze. The second major surface includes a first portion adjacent an edge and a second portion adjacent the first portion. The first portion includes a first region and a second region between the first region and the second portion. The second major surface includes a second plurality of surface structures providing a uniform second haze over the second portion and providing a third haze in the first portion. The third haze in the first region is higher than the second haze, and the third haze in the second region is monotonically decreasing. The second portion has a surface area of at least 90 percent of a surface area of the second major surface.
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公开(公告)号：US11811139B2
公开(公告)日：2023-11-07
申请号：US17043432
申请日：2019-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jaewon Kim , Stephen J. Etzkorn , Ronald D. Jesme , Dipankar Ghosh , Mohsen Salehi , Guanglei Du , John A. Wheatley
CPC classification number: H01Q15/10 , H01Q1/3233 , H01Q1/3283 , H01Q1/422
Abstract: Gradient permittivity films are described. In particular, gradient permittivity films including a plurality of layers each having a thickness where at least one layer is perforated and has a different air volume fraction from another of the plurality of layers by at least 0.05. Such films may be useful in improving the signal to noise ratio for transmitting and receiving units operating between 20 GHz and 300 GHz behind a protective cover.
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公开(公告)号：US20190265547A1
公开(公告)日：2019-08-29
申请号：US16308248
申请日：2017-06-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Nathaniel K. Naismith , Stephen J. Etzkorn , David A. Rosen
IPC: G02F1/1335 , F21V8/00
Abstract: Recycling backlights are described. More specifically, recycling backlights including structured reflectors are described. The structured reflector redirects light at least for angles emitted from a lightguide and retroreflects other light, the retroreflected light having incidence angles not emitted by the lightguide.
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公开(公告)号：US20180217300A1
公开(公告)日：2018-08-02
申请号：US15568832
申请日：2016-04-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Tri D. Pham , Nicholas A. Johnson , Oanh V. Pham , Sara S. Merritt , Stephen J. Etzkorn , Haiyan Zhang , Corey D. Balts , Joseph T. Aronson
Abstract: A diffuser including opposing structured first and second major surfaces is described. The first major surface includes a first plurality of surface structures providing a uniform first haze. The second major surface includes a first portion adjacent an edge and a second portion adjacent the first portion. The first portion includes a first region and a second region between the first region and the second portion. The second major surface includes a second plurality of surface structures providing a uniform second haze over the second portion and providing a third haze in the first portion. The third haze in the first region is higher than the second haze, and the third haze in the second region is monotonically decreasing. The second portion has a surface area of at least 90 percent of a surface area of the second major surface.
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公开(公告)号：US11957032B2
公开(公告)日：2024-04-09
申请号：US18329745
申请日：2023-06-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Etzkorn , Michael L. Steiner , Kevin W. Gotrik , Luke A. Schroeder , Nicholas A. Johnson , John A. Wheatley
IPC: G02B27/28 , F21V9/14 , F21V14/00 , G02F1/01 , G02F1/035 , H01L25/075 , H01L25/13 , H10K59/80 , F21Y115/10
CPC classification number: H10K59/8793 , F21V9/14 , F21V14/003 , G02B27/286 , G02F1/0136 , G02F1/035 , H01L25/0753 , H01L25/13 , F21Y2115/10 , G02F2202/20
Abstract: The present disclosure provides a display system. The display system includes a backlight configured to emit substantially collimated polarized light from an emission surface thereof. The emitted polarized light is polarized along a polarization direction. The display system further includes a display panel configured to receive an illumination light and form an image. The display system further includes a grating system substantially coextensive in length and width with the display panel and the emission surface. The grating system includes a plurality of substantially parallel elongated features extending along an in-plane first direction and arranged along an orthogonal in-plane second direction. The grating system is configured to receive and transmit an incident polarized light as a first transmitted light having different first and second polarization states in response to different respective first and second signals applied to the grating system.
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