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    Optical Construction
    32.
    发明公开
    Optical Construction 审中-公开

    公开(公告)号：US20230280512A1

    公开(公告)日：2023-09-07

    申请号：US18171748

    申请日：2023-02-21

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Joseph P. Attard ,  Kristy A. Gillette ,  Tri D. Pham ,  Zhaohui Yang

    IPC: G02B5/20 ,  G02B3/00

    CPC classification number: G02B5/201 ,  G02B3/0075

    Abstract: An optical construction includes a lens layer having a structured first major surface including a plurality of microlenses; an optical filter disposed on the lens layer; an optically opaque mask layer disposed between the lens layer and the optical filter and defining a plurality of openings therein; and a low index layer disposed on the optical filter. For a first wavelength in a visible wavelength range, a second wavelength that can be in an infrared wavelength range, the optical filter has: an optical transmission of greater than about 50% for the first wavelength for each of a first incident angle of less than about 10 degrees and a second incident angle of greater than about 30 degrees, and for the second wavelength, an optical transmission of less than about 15% for the first incident angle and of greater than about 30% for the second incident angle.

    LIGHT CONTROL FILM AND METHOD OF MANUFACTURE THEREOF
    34.
    发明申请
    LIGHT CONTROL FILM AND METHOD OF MANUFACTURE THEREOF 有权

    公开(公告)号：US20210294003A1

    公开(公告)日：2021-09-23

    申请号：US17266858

    申请日：2019-08-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Mark A. Roehrig ,  Zhaohui Yang ,  Tri Dinh Pham ,  Cynthia Y. Tamaki ,  Owen M. Anderson ,  Robert Bennett

    IPC: G02B5/00

    Abstract: A light control film includes a first portion and a second portion laminated to the first portion. The first portion includes a first functional substrate and a plurality of first louvers formed on the first functional substrate. The first functional substrate includes at least one of an optically active layer and a barrier layer. The second portion includes a second functional substrate disposed distal to the first functional substrate and a plurality of second louvers formed on the second functional substrate. The second functional substrate includes at least one of an optically active layer and a barrier layer. The plurality of first louvers extend along a first direction and the plurality of second louvers extend along a second direction. The first direction and the second direction are inclined to each other at an angle that lies within a range from about 70 degrees to about 110 degrees.

    Single packet reflective polarizer with thickness profile tailored for low color at oblique angles
    35.
    发明授权
    Single packet reflective polarizer with thickness profile tailored for low color at oblique angles 有权

    公开(公告)号：US11099312B2

    公开(公告)日：2021-08-24

    申请号：US16787608

    申请日：2020-02-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Timothy J. Nevitt ,  Carl A. Stover ,  Gilles J. Benoit ,  Kristopher J. Derks ,  Zhaohui Yang

    IPC: G02B5/30 ,  B32B7/023 ,  B29D11/00 ,  B32B27/08 ,  B32B27/36 ,  B29K67/00 ,  B29L31/34

    Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).

    SINGLE PACKET REFLECTIVE POLARIZER WITH THICKNESS PROFILE TAILORED FOR LOW COLOR AT OBLIQUE ANGLES
    37.
    发明申请
    SINGLE PACKET REFLECTIVE POLARIZER WITH THICKNESS PROFILE TAILORED FOR LOW COLOR AT OBLIQUE ANGLES 审中-公开

    公开(公告)号：US20200174170A1

    公开(公告)日：2020-06-04

    申请号：US16787608

    申请日：2020-02-11

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Timothy J. Nevitt ,  Carl A. Stover ,  Gilles J. Benoit ,  Kristopher J. Derks ,  Zhaohui Yang

    IPC: G02B5/30 ,  B32B27/36 ,  B32B27/08 ,  B29D11/00 ,  B32B7/023

    Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).

    BACK-LIT TRANSMISSIVE DISPLAY HAVING VARIABLE INDEX LIGHT EXTRACTION LAYER
    38.
    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。

    Lighting devices with patterned printing of diffractive extraction features
    39.
    发明授权
    Lighting devices with patterned printing of diffractive extraction features 有权
    具有衍射提取特征的图案印刷的照明装置

    公开(公告)号：US09470838B2

    公开(公告)日：2016-10-18

    申请号：US14486823

    申请日：2014-09-15

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： David S. Thompson ,  Zhaohui Yang ,  Matthew S. Stay ,  Vivian W. Jones

    IPC: F21V8/00 ,  G02B5/18

    CPC classification number: G02B6/0058 ,  G02B5/1819 ,  G02B6/0035 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/006

    Abstract: Extended area lighting devices include a light guide and diffractive surface features on a major surface of the light guide, at least some diffractive surface features adapted to couple guided-mode light out of the light guide. The diffractive features include first and second diffractive features disposed on respective first and second portions of the major surface. A patterned light transmissive layer, including a second light transmissive medium, optically contacts the second diffractive features but not the first diffractive features. A first light transmissive medium optically contacts the first but not the second diffractive features. The first and second portions may define indicia, and the first and second diffractive features provide low distortion for viewing objects through the light guide such that the indicia is not readily apparent to users when guided-mode light does not propagate within the light guide. Optical films having such diffractive features are also disclosed.

    Abstract translation: 扩展区域照明装置包括在导光体的主表面上的光导和衍射表面特征，至少一些衍射表面特征适于将导模光耦合到光导中。 衍射特征包括设置在主表面的相应第一和第二部分上的第一和第二衍射特征。 包括第二透光介质的图案化透光层光学地接触第二衍射特征而不是第一衍射特征。 第一透光介质光学地接触第一但不是第二衍射特征。 第一和第二部分可以限定标记，并且第一和第二衍射特征提供用于通过导光体观察物体的低失真，使得当导光模式光不在光导内传播时，标记对于用户来说不容易明显。 还公开了具有这种衍射特征的光学膜。

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