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    MICROREPLICATED OPTICAL FILM
    1.
    发明申请
    MICROREPLICATED OPTICAL FILM 审中-公开

    公开(公告)号：WO2022106962A1

    公开(公告)日：2022-05-27

    申请号：PCT/IB2021/060401

    申请日：2021-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SHIROTORI, Hideaki ,  TOYOOKA, Kazuhiko ,  KADO, Sayaka ,  BOYD, Gary T.

    IPC: G02F1/1335 ,  G02F1/13357

    Abstract: A backlight includes a plurality of discrete light sources configured to face a display, and an optical film disposed on the light sources and below and proximate a first plane. The optical film includes a plurality of through-holes extending between first and second major surfaces of the optical film. Each through-hole has a first opening at the first major surface, and a second opening at the second major surface with an open area, A2. Each through-hole has length, H, such that H/A2 is greater than or equal to about 0.13. The light from the light sources has a first overall peak intensity in the first plane, and a first brightness uniformity across the first plane, and in the absence of the optical film, the light from the light sources has a second overall peak intensity in the first plane, and a second brightness uniformity across the first plane, such that the first and second overall peak intensities are different by less than about 20%, and the first brightness uniformity exhibits an improvement over the second brightness uniformity by at least 2.8%.

    OPTICAL DIFFUSING FILMS AND METHODS OF MAKING SAME
    5.
    发明申请
    OPTICAL DIFFUSING FILMS AND METHODS OF MAKING SAME 审中-公开
    光学扩散膜及其制造方法

    公开(公告)号：WO2014081693A1

    公开(公告)日：2014-05-30

    申请号：PCT/US2013/070721

    申请日：2013-11-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： PHAM, Tri D. ,  KONG, Steven H. ,  ZHANG, Haiyan ,  ARONSON, Joseph T. ,  LEAF, Michael R. ,  BOYD, Gary T. ,  JOHNSON, Nicholas A. ,  WANG, Qingbing

    IPC: G02B5/02 ,  F21V8/00 ,  G02F1/1335

    CPC classification number: G02B5/021 ,  B29C59/026 ,  B29L2011/00 ,  C25D3/04 ,  C25D3/38 ,  C25D5/12 ,  C25D5/16 ,  G02B5/0221 ,  G02B5/0268 ,  G02B5/0278 ,  G02B6/0051 ,  G02F1/133606

    Abstract: Optical diffusing films are made by microreplication from a structured surface tool. The tool is made using a 2-part electroplating process, wherein a first electroplating procedure forms a first metal layer with a first major surface, and a second electroplating procedure forms a second metal layer on the first metal layer, the second metal layer having a second major surface with a smaller average roughness than that of the first major surface. The second major surface can function as the structured surface of the tool. A replica of this surface can then be made in a major surface of an optical film to provide light diffusing properties. The structured surface and/or its constituent structures can be characterized in terms of various parameters such as optical haze, optical clarity, Fourier power spectra of the topography along orthogonal in-plane directions, ridge length per unit area, equivalent circular diameter (ECD), and/or aspect ratio.

    Abstract translation: 光学漫射膜通过微结构化表面工具进行制造。 该工具使用2部分电镀工艺制成，其中第一电镀工艺形成具有第一主表面的第一金属层，第二电镀工艺在第一金属层上形成第二金属层，第二金属层具有 平均粗糙度小于第一主表面的第二主表面。 第二个主表面可以作为工具的结构化表面。 然后可以在光学膜的主表面上制造该表面的复制品以提供光漫射性质。 结构化表面和/或其组成结构可以根据各种参数来表征，例如光学雾度，光学透明度，沿垂直面内方向的形貌的傅里叶功率谱，每单位面积的脊长度，等效圆直径（ECD） ，和/或纵横比。

    BRIGHTNESS ENHANCEMENT FILM WITH SUBSTANTIALLY NON-IMAGING EMBEDDED DIFFUSER
    6.
    发明申请
    BRIGHTNESS ENHANCEMENT FILM WITH SUBSTANTIALLY NON-IMAGING EMBEDDED DIFFUSER 审中-公开
    亮度增强膜与非成像非成像嵌入式扩散器

    公开(公告)号：WO2013158475A1

    公开(公告)日：2013-10-24

    申请号：PCT/US2013/036291

    申请日：2013-04-12

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  BOYD, Gary T. ,  WANG, Qingbing ,  PHAM, Tri D. ,  JOHNSON, Connie L.

    Inventor： BOYD, Gary T. ,  WANG, Qingbing ,  PHAM, Tri D. ,  JOHNSON, Connie L.

    IPC: G02B3/00 ,  G02B5/02 ,  G02B5/04 ,  F21V8/00

    CPC classification number: G02B27/48 ,  G02B3/0043 ,  G02B3/0056 ,  G02B5/0221 ,  G02B5/0231 ,  G02B5/0236 ,  G02B5/045 ,  G02B6/0053

    Abstract: A microreplicated optical film (919) for use in optical displays, backlights, and the like includes a prismatic layer (950) carried by a substrate (920). In use, the optical film may be combined in a system with other components such that the optical film is positioned between an extended light source (902) and a polarizer (904). In such cases, if the substrate has an appreciable birefringence, a subtle but characteristic colored pattern known as substrate color mura (SCM) may be detected by a user of the system. To reduce or eliminate the SCM with little or no adverse effect on brightness enhancement capabilities of the optical film, the optical film may include an embedded structured surface (933) between the substrate and the prismatic layer. In order to avoid another optical artifact known as sparkle, at least 80% of the embedded structured surface is preferably occupied by features such as defocusing lenslets or random planar facets.

    Abstract translation: 用于光学显示器，背光灯等的微复制光学膜（919）包括由衬底（920）承载的棱镜层（950）。 在使用中，光学膜可以与其他部件组合在一起，使得光学膜位于延伸的光源（902）和偏振器（904）之间。 在这种情况下，如果衬底具有明显的双折射，则可以由系统的用户检测到称为衬底色调（SCM）的微妙但特征的着色图案。 为了减少或消除对光学膜的亮度增强能力几乎没有不利影响的SCM，光学膜可以包括在基板和棱镜层之间的嵌入式结构化表面（933）。 为了避免被称为闪光的另一种光学伪像，嵌入式结构化表面的至少80％优选地被诸如散焦小透镜或随机平面的特征所占据。

    OPTICAL LAYERS, FILMS AND SYSTEMS
    7.
    发明申请
    OPTICAL LAYERS, FILMS AND SYSTEMS 审中-公开

    公开(公告)号：WO2021070027A1

    公开(公告)日：2021-04-15

    申请号：PCT/IB2020/059277

    申请日：2020-10-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： LIU, Tao ,  BOYD, Gary T. ,  ROSEN, David A. ,  ACHARYA, Bharat R. ,  GOTRIK, Kevin W. ,  ROWE, David J. ,  NELSON, Caleb T.

    IPC: G02F1/13357

    Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.

    LIGHT CONTROL FILMS
    8.
    发明申请
    LIGHT CONTROL FILMS 审中-公开

    公开(公告)号：WO2018229600A1

    公开(公告)日：2018-12-20

    申请号：PCT/IB2018/054049

    申请日：2018-06-06

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： GAIDES, Gary E. ,  O'NEILL, Mark B. ,  BOYD, Gary T.

    IPC: G02B5/22 ,  G02B5/26 ,  H01L31/054

    Abstract: Generally, the present disclosure relates to light control films. The present disclosure also relates to assemblies incorporating light control films. In some embodiments, the light control films of the present disclosure regulate transmission of one or more of visible light, ultraviolet light, and infrared light that reaches a substrate after exiting the light control film. The light control film comprises waveguiding channels (130) which collect light incident under larger incidence angles towards the surface opposite the incidence surface. The channels are surrounded by a material (140) having a lower refractive index than the one the channel material and can comprise an absorbing pigment.

    OPTICAL FILM STACK
    9.
    发明申请
    OPTICAL FILM STACK 审中-公开
    光学胶片堆叠

    公开(公告)号：WO2013096324A1

    公开(公告)日：2013-06-27

    申请号：PCT/US2012/070375

    申请日：2012-12-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  BOYD, Gary T. ,  WANG, Qingbing ,  PHAM, Tri D.

    Inventor： BOYD, Gary T. ,  WANG, Qingbing ,  PHAM, Tri D.

    IPC: G02B6/00 ,  G02B5/02

    CPC classification number: G02B5/02 ,  G02B5/021 ,  G02B5/0236 ,  G02B5/0257 ,  G02B6/0051

    Abstract: Example light management films are described. In one example, an optical stack comprises a first light directing film comprising a structured major surface opposite a second major surface, the structured major surface comprising a plurality of linear structures extending along a first direction, the light directing film having an average effective transmission of at least 1.3; and an asymmetric light diffuser disposed on the light directing film and being more diffusive along a second direction and less diffusive along a third direction orthogonal to the second direction, the second direction making an angle with the first direction that is greater than zero and less than 60 degrees.

    Abstract translation: 描述示例性的光管理膜。 在一个示例中，光学堆叠包括第一导光膜，其包括与第二主表面相对的结构化主表面，所述结构化主表面包括沿着第一方向延伸的多个线性结构，所述光导膜具有平均有效透射率 至少1.3; 以及非对称光漫射器，其设置在所述导光膜上，并且沿着与所述第二方向正交的沿着第二方向扩散并且沿着与所述第二方向正交的第三方向较少地扩散，所述第二方向与所述第一方向成大于零且小于 60度。

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