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    LIGHTGUIDE
    11.
    发明申请
    LIGHTGUIDE 审中-公开
    灯光

    公开(公告)号：US20150061167A1

    公开(公告)日：2015-03-05

    申请号：US14537308

    申请日：2014-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Jeffrey L. Solomon ,  Brian A. Kinder ,  Gary T. Boyd

    IPC: F21V8/00 ,  C03B11/08

    CPC classification number: G02B6/0065 ,  B29D11/0074 ,  C03B11/082 ,  G02B6/0016 ,  G02B6/0028 ,  G02B6/0036 ,  G02B6/0046 ,  G02B6/0061 ,  G02B6/0088

    Abstract: Flexible unitary lightguide and a method of making the same are disclosed. The lightguide includes a structured input side that includes a first pattern having smaller features superimposed on a second pattern having larger features. The lightguide further includes a structured top surface that includes a first region and a different second region. The first region includes a plurality of discrete light extractors for extracting light that propagates within the flexible unitary lightguide by total internal reflection. The second region includes a taper portion for directing light from the structured input side to the first region. The light extractors form a periodic array that has a first period along the length of the flexible unitary lightguide. The first period is such that substantially no visible moire fringes occur when the flexible unitary lightguide is used as a backlight in a pixelated display.

    Abstract translation: 公开了柔性单一导光板及其制造方法。 光导包括结构化输入侧，其包括具有较小特征的第一图案，其叠加在具有较大特征的第二图案上。 光导还包括结构化的顶表面，其包括第一区域和不同的第二区域。 第一区域包括多个离散的光提取器，用于提取通过全内反射在柔性单一光导内传播的光。 第二区域包括用于将光从结构化输入侧引导到第一区域的锥形部分。 光提取器形成周期性阵列，其具有沿着柔性单一光导的长度的第一周期。 第一时期使得当在像素化显示器中使用柔性单一光导作为背光时，基本上不会出现可见的莫尔条纹。

    Curved display with light control film
    12.
    发明授权
    Curved display with light control film 有权

    公开(公告)号：US12298539B2

    公开(公告)日：2025-05-13

    申请号：US17596633

    申请日：2020-06-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tao Liu ,  Gary T. Boyd ,  Tri D. Pham ,  Garth V. Antila ,  Keith R. Jacobs

    IPC: G02B5/00

    Abstract: A curved display includes a display panel having a curved major surface and a light control film disposed proximate the display panel. The curved major surface is curved about a first axis, and a central portion of the curved major surface has a surface normal along a second axis substantially orthogonal to the first axis. The light control film includes a major surface having a substantially same shape as the curved major surface and includes a plurality of alternating optically transmissive and optically absorptive regions. In a cross-section orthogonal to the first axis, a transmissive region and adjacent absorptive regions define a central ray transmission direction through the optically transmissive region such that a light ray emitted by the display panel and transmitted through the optically transmissive region along the transmission direction is refracted upon exiting the curved display into a direction substantially parallel to the second axis.

    MICROREPLICATED OPTICAL FILM
    13.
    发明公开
    MICROREPLICATED OPTICAL FILM 审中-公开

    公开(公告)号：US20240004124A1

    公开(公告)日：2024-01-04

    申请号：US18037396

    申请日：2021-11-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hideaki Shirotori ,  Kazuhiko Toyooka ,  Sayaka Kado ,  Gary T. Boyd

    IPC: F21V8/00

    CPC classification number: G02B6/0068 ,  G02B6/0073 ,  G02B6/0025 ,  G02B6/0016

    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%.

    BACKLIGHTING FOR DISPLAY SYSTEMS
    14.
    发明公开
    BACKLIGHTING FOR DISPLAY SYSTEMS 审中-公开

    公开(公告)号：US20230176419A1

    公开(公告)日：2023-06-08

    申请号：US18073813

    申请日：2022-12-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Yu Hsin Lu ,  Gary T. Boyd ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Carl A. Stover ,  Adam D. Haag

    IPC: G02F1/13357 ,  G02F1/1335 ,  G02B1/04

    CPC classification number: G02F1/133606 ,  G02F1/133603 ,  G02F1/133514 ,  G02F1/133536 ,  G02B1/04

    Abstract: A display system includes a light source configured to emit light from a light exit surface, the emitted light having an emitted wavelength. An optical filter is disposed on the light exit surface of the light source. One or more light converting films are disposed between the optical filter and the light exit surface of the light source. The one or more light converting films are configured to receive the emitted light from the light source and convert at least portions of the received emitted light to blue, green, and red lights having respective blue, green and red wavelengths. For a substantially normally incident light and for at least an in-plane first polarization state, the optical filter reflects more than about 80% of the incident light having the emitted wavelength, and transmits greater than about 60% of the incident light for each of the blue, green and red wavelengths.

    OPTICAL LAYERS, FILMS AND SYSTEMS
    15.
    发明申请
    OPTICAL LAYERS, FILMS AND SYSTEMS 有权

    公开(公告)号：US20220308281A1

    公开(公告)日：2022-09-29

    申请号：US17639025

    申请日：2020-10-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tao Liu ,  Gary T. Boyd ,  David A. Rosen ,  Bharat R. Acharya ,  Kevin W. Gotrik ,  David J. Rowe ,  Caleb T. Nelson

    IPC: F21V8/00 ,  G02B5/02 ,  G02F1/1333 ,  G02F1/1335

    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 redirecting film, backlight, and display system
    17.
    发明授权
    Light redirecting film, backlight, and display system 有权

    公开(公告)号：US11175533B2

    公开(公告)日：2021-11-16

    申请号：US17041028

    申请日：2019-04-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Gary T. Boyd

    IPC: G02F1/00 ,  G02F1/13357

    Abstract: A light redirecting film, a backlight including the light redirecting film, and a display system including the backlight are described. The light redirecting film may be a microstructured film including a plurality of substantially parallel spaced apart structures on a substrate. The backlight includes a plurality of discrete spaced apart light sources configured to illuminate a plurality of non-overlapping illumination zones in a display surface in a one-to-one correspondence relationship; and a microstructured film disposed on the plurality of light sources, such that when the display surface is disposed on the microstructured film and the light sources are energized, at least 80% of light emitted by each light source illuminates a corresponding illumination zone in the display surface, and a luminous intensity distribution across the plurality of the illumination zones has an average I and a standard deviation S, where S/I

    Brightness enhancement film with substantially non-imaging embedded diffuser
    19.
    发明授权
    Brightness enhancement film with substantially non-imaging embedded diffuser 有权

    公开(公告)号：US10571711B2

    公开(公告)日：2020-02-25

    申请号：US14395588

    申请日：2013-04-12

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Gary T. Boyd ,  Qingbing Wang ,  Tri Dinh Pham ,  Connie L. Johnson

    IPC: G02B27/48 ,  G02B5/02

    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.

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