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    OPTICAL SYSTEM INCLUDING LIGHT CONTROL FILM AND FRESNEL LENS
    2.
    发明公开
    OPTICAL SYSTEM INCLUDING LIGHT CONTROL FILM AND FRESNEL LENS 审中-公开

    公开(公告)号：US20240276851A1

    公开(公告)日：2024-08-15

    申请号：US18643225

    申请日：2024-04-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tao Liu ,  Gary T. Boyd ,  Daniel J. Schmidt ,  Caleb T. Nelson ,  Owen M. Anderson ,  Tri D. Pham ,  Encai Hao ,  Shu-Ching Fan

    IPC: H10K59/80 ,  G02B3/08

    CPC classification number: H10K59/879 ,  G02B3/08

    Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis. The light control film can be disposed between a light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces the light control film. The light control film can include a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.

    Optical system including light control film and fresnel lens
    3.
    发明授权
    Optical system including light control film and fresnel lens 有权

    公开(公告)号：US12004410B2

    公开(公告)日：2024-06-04

    申请号：US17768421

    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 ,  Encai Hao ,  Shu-Ching Fan

    IPC: G02B3/08 ,  H10K59/80

    CPC classification number: H10K59/879 ,  G02B3/08

    Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally 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 alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.

    OPTICAL FILM ASSEMBLIES
    6.
    发明申请
    OPTICAL FILM ASSEMBLIES 审中-公开

    公开(公告)号：US20200341336A1

    公开(公告)日：2020-10-29

    申请号：US16959710

    申请日：2019-01-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tri D. Pham ,  Corey D. Balts ,  Felix B Bierbaum ,  Encai Hao ,  Simon P. Janeczko ,  Thomas J. Ludemann ,  Trevor W. Stolber ,  Qingbing Wang ,  Joseph D. Wheeldon

    IPC: G02F1/13357 ,  F21V8/00

    Abstract: An optical film assembly comprises a light redirecting film (110) having a first structured major surface (112) and a second, opposed major surface (114). An optical adhesive layer (120) is disposed on the second major surface of the light redirecting film. A light diffusion film (140) comprises a first major surface (142) comprising a light diffusion surface and a second, opposed major surface (144). A plurality of discrete optical decoupling structures (146) project from the light diffusion surface and contact the optical adhesive layer. An air gap (148) is defined between the first major surface of the light diffusion film and the optical adhesive layer. Embodiments of optical film assemblies described herein are useful, for example, for hiding optical defects and improving the brightness uniformity of light emitted by a light source.

    Transparent conductors including metal traces and methods of making same
    7.
    发明授权
    Transparent conductors including metal traces and methods of making same 有权

    公开(公告)号：US10564780B2

    公开(公告)日：2020-02-18

    申请号：US15747958

    申请日：2016-08-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Encai Hao ,  Matthew S. Stay ,  Albert I. Everaerts ,  Mahfuza B. Ali ,  Yizhong Wang ,  Kevin M. Lewandowski ,  Corey J. Radloff

    IPC: G06F3/044 ,  H05K1/02 ,  H05K1/09 ,  H05K3/28

    Abstract: A transparent conductor is provided, including a visible light transparent substrate and metal traces disposed on the substrate, and a layer of a second metal deposited on at least a portion of the metal traces. The transparent conductor further includes a layer of a second metal, which conforms to the surface structure of the metal traces on which it is deposited. Optionally, the transparent conductor also includes a coating layer disposed on a portion of the metal traces and the substrate surface. The coating layer includes a polymer prepared from a polymerizable composition containing at least one ionic liquid monomer. A method of forming a transparent conductor is also provided, including obtaining a visible light transparent substrate having metal traces disposed on the substrate and applying a coating composition on a portion of the metal traces and substrate. The coating composition contains at least one noble metal salt and at least one polymerizable ionic liquid monomer.

    BACK-LIT TRANSMISSIVE DISPLAY HAVING VARIABLE INDEX LIGHT EXTRACTION LAYER
    9.
    发明申请
    BACK-LIT TRANSMISSIVE DISPLAY HAVING VARIABLE INDEX LIGHT EXTRACTION LAYER 审中-公开
    具有可变索引光提取层的背景传输显示

    公开(公告)号：US20170031078A1

    公开(公告)日：2017-02-02

    申请号：US15292817

    申请日：2016-10-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： David Scott Thompson ,  Kevin R. Schaffer ,  Zhaohui Yang ,  Encai Hao ,  Audrey A. Sherman ,  Michael A. Meis ,  John A. Wheatley ,  Matthew S. Stay ,  Robert F. Kamrath ,  Mikhail L. Pekurovsky ,  Steven D. Solomonson

    IPC: F21V8/00

    CPC classification number: G02B6/005 ,  G02B6/0043 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/0058 ,  G02B6/0066

    Abstract: This application describes a back-lit transmissive display including a transmissive display and a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first regions of nanovoided polymeric material and second regions of the nanovoided polymeric material and an additional material. The first and second regions are disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. The transmissive display may be a transmissive display panel or a polymeric film such as a graphic.

    Abstract translation: 该应用描述了背光透射显示器，其包括透光显示器和与光导光学耦合的可变折射率光提取层。 可变折射率光提取层具有纳米弹性聚合物材料的第一区域和纳米弹性聚合物材料的第二区域和附加材料。 第一和第二区域被布置成使得对于在光导中以超临界角传输的光，可变索引光提取层基于第一和第二区域的几何布置以预定方式选择性地提取光。 透射显示器可以是透射显示面板或诸如图形的聚合物膜。

    Electronically switchable privacy device
    10.
    发明授权
    Electronically switchable privacy device 有权
    电子切换隐私设备

    公开(公告)号：US09500888B2

    公开(公告)日：2016-11-22

    申请号：US14772246

    申请日：2014-03-07

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Evan L. Schwartz ,  Mark J. Pellerite ,  Encai Hao ,  Michael L. Steiner

    IPC: G02B26/00 ,  G02F1/00 ,  G02B26/08 ,  G02F1/29 ,  G02F1/13 ,  G02B26/02 ,  G02F1/15 ,  G02F1/161 ,  G02F1/163 ,  G02F1/155

    CPC classification number: G02F1/1323 ,  G02B26/02 ,  G02F1/1521 ,  G02F1/161 ,  G02F1/163 ,  G02F2001/1557

    Abstract: An electronically switchable privacy device suitable for use in display devices is described. The electronically switchable privacy device comprises a first transparent electrode layer, an electronically switchable layer disposed adjacent to the first transparent electrode layer, and a second transparent electrode layer disposed adjacent to the electronically switchable layer and opposite the first transparent electrode layer. The second transparent electrode layer comprises a transparent substrate layer having a plurality of microstructured ribs extending across a major surface of the transparent substrate layer such that the microstructured ribs form an alternating series of ribs and channels, each channel having channel walls defined by adjacent ribs. A plurality of transparent electrode members comprising a transparent electrode material are disposed on at least one channel wall in a corresponding plurality of the channels; and a bus member provides electrical connectivity across the plurality of transparent electrode members. A spacer element disposed in the electronically switchable layer keeps the first transparent electrode layer spaced apart from the second transparent electrode layer. A portion of the electronically switchable layer at least partially fills the plurality of channels and makes electrical contact with the plurality of transparent electrode members. The electronically switchable layer comprises an electronically switchable material capable of modulation between high and low light absorption states upon application of a direct current voltage across the first and second transparent electrode layers.

    Abstract translation: 描述适用于显示装置的可电切换隐私装置。 电子可切换隐私装置包括第一透明电极层，与第一透明电极层相邻布置的电子可切换层以及与电子可切换层相邻并与第一透明电极层相对设置的第二透明电极层。 第二透明电极层包括透明衬底层，透明衬底层具有延伸穿过透明衬底层的主表面的多个微结构肋，使得微结构肋形成交替的一系列肋和通道，每个沟道具有由相邻肋限定的通道壁。 包括透明电极材料的多个透明电极构件设置在相应的多个通道中的至少一个通道壁上; 并且总线构件提供穿过多个透明电极构件的电连接。 设置在电子可切换层中的间隔元件使第一透明电极层与第二透明电极层间隔开。 电子可切换层的一部分至少部分地填充多个通道并与多个透明电极构件电接触。 电子可切换层包括能够在施加直流电压跨越第一和第二透明电极层时在高光和低光吸收状态之间进行调制的电子可切换材料。

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