公开(公告)号：WO2018129073A1

公开(公告)日：2018-07-12

申请号：PCT/US2018/012228

申请日：2018-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： JOHNSON, Nicholas A. ,  PALLARINO, Richard V. ,  EPSTEIN, Kenneth A. ,  LAUTERS, Michael E.

IPC: G02F1/335 ,  G02B5/22 ,  G02B5/04 ,  G02B5/00 ,  G02B5/02

Abstract: A light control film and display assemblies that includes such a film. The light control film including a substrate defining first and second major surfaces with the first major surface including a plurality louvers spanning in a first direction substantially perpendicular to a normal of the first major surface, and with the second major surface comprises a plurality of linear microstructures spanning in the first direction. In some examples, each louver of the plurality of louvers substantially aligns with a corresponding microstructure of the plurality of microstructures.

公开(公告)号：WO2017035206A1

公开(公告)日：2017-03-02

申请号：PCT/US2016/048343

申请日：2016-08-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： EPSTEIN, Kenneth A. ,  WHEATLEY, John A. ,  LIU, Tao

IPC: G02B6/34 ,  F21V8/00 ,  G02B6/036 ,  G02B27/30

CPC classification number: G02B6/0038

Abstract: A light guide includes a light input surface, a first major surface orthogonal to the light input surface, a second major surface opposing the first major, a plurality of discrete light extraction features disposed on the second major surface and a plurality of closely packed prisms disposed along the second major surface. The plurality of discrete light extraction features separate the plurality of closely packed prisms from the second major surface. Each of the closely packed prisms include a first prism surface forming a first angle with the second surface in a range from 80 to 100 degrees or in a range from 85 to 95 degrees or in a range from 87 to 93 degrees.

Abstract translation: 光导包括光输入表面，与光输入表面正交的第一主表面，与第一主表面相对的第二主表面，设置在第二主表面上的多个离散的光提取特征和多个紧密堆积的棱镜， 沿第二个主要表面。 多个离散的光提取特征将多个紧密堆积的棱镜与第二主表面分开。 每个紧密堆积的棱镜包括第一棱镜表面，其在第二表面上形成与80度至100度或85度至95度之间或87度至93度范围内的第一角度。

公开(公告)号：WO2015094737A1

公开(公告)日：2015-06-25

申请号：PCT/US2014/069020

申请日：2014-12-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： BRIGHAM, Scott E. ,  EPSTEIN, Kenneth A. ,  KANUKURTHY, Kiran S. ,  SCHULTZ, John C. ,  WATSON, Philip E.

IPC: G01B11/14

CPC classification number: G01V8/20 ,  G06Q30/02 ,  G09F27/00 ,  G09F2027/001 ,  Y04S50/14

Abstract: A sensor comprising a thin film photovoltaic pixel is fitted with optics to provide a field-of-view for the sensing of persons, or other objects, entering or exiting said field-of-view. When a person enters the field-of-view, a processor may sense such entry, then provide signals to other electronic apparatus indicative of such an event.

Abstract translation: 包括薄膜光伏像素的传感器装配有光学器件以提供用于感测人或其他物体进入或退出所述视场的视场。 当人进入视场时，处理器可以感测这样的输入，然后向指示这种事件的其他电子设备提供信号。

公开(公告)号：WO2008061059A2

公开(公告)日：2008-05-22

申请号：PCT/US2007/084418

申请日：2007-11-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： EPSTEIN, Kenneth A. ,  HANLEY, Kenneth J. ,  EMMONS, Robert M.

IPC: G02F1/13357

CPC classification number: G02F1/133611 ,  G02F1/133604 ,  G02F2001/133607

Abstract: A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the one or more light sources and the display panel, and a light diverting layer is disposed between the one or more light sources and the diffuser. The light diverting layer has a first light-diverting surface facing the one or more light sources and a second light diverting surface facing the display panel. The light diverting layer diverts light passing from the one or more light sources to the diffuser, thus improving the uniformity of the light in the display unit.

Abstract translation: 直接照明的显示单元具有显示面板和设置在显示面板后面的一个或多个光源。 扩散器设置在一个或多个光源和显示面板之间，并且光转向层设置在一个或多个光源和扩散器之间。 光转移层具有面对一个或多个光源的第一光转向表面和面向显示面板的第二光转向表面。 光转移层将从一个或多个光源通过的光转向漫射器，从而提高显示单元中的光的均匀性。

公开(公告)号：WO2020026139A1

公开(公告)日：2020-02-06

申请号：PCT/IB2019/056489

申请日：2019-07-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： SCHMIDT, Daniel J. ,  GOTRIK, Kevin W. ,  JOHNSON, Nicholas A. ,  KENNEY, Raymond J. ,  NELSON, Caleb T. ,  EPSTEIN, Kenneth A.

IPC: G02B5/00 ,  G02F1/1335 ,  G09F9/00

Abstract: A light control film comprises a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein the absorptive regions comprise a core having a first concentration, C 1 , of a light absorbing material sandwiched between cladding layers having a second concentration, C 2 , of the light absorbing material, wherein C 2 1 , and wherein the cores have an aspect ratio of at least 20.

公开(公告)号：WO2015183604A1

公开(公告)日：2015-12-03

申请号：PCT/US2015/031317

申请日：2015-05-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： JOHNSON, Nicholas A. ,  EPSTEIN, Kenneth A. ,  HILLIS, James M. ,  LAUTERS, Michael E.

IPC: G02F1/1335 ,  H04N13/04 ,  F21V8/00

CPC classification number: G09G3/3406 ,  G02B6/0046 ,  G02B6/0053 ,  G02B6/0068 ,  G02F1/1323 ,  G02F1/133615 ,  G02F2001/133607 ,  G09G2320/028 ,  H04N2013/403

Abstract: Backlights are disclosed. More particularly, temporally multiplexed backlights utilizing asymmetric turning films are disclosed. The disclosed backlights are capable of displaying a primary image to on-axis viewers while simultaneously providing a secondary image to off-axis viewers.

Abstract translation: 背光灯被公开。 更具体地，公开了使用非对称转向膜的时间复用背光。 所公开的背光能够将原始图像显示在轴上观看者，同时向离轴观看者提供次要图像。

公开(公告)号：WO2015153329A3

公开(公告)日：2015-10-08

申请号：PCT/US2015/022925

申请日：2015-03-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： JOHNSON, Nicholas A. ,  BENOIT, Gilles Jean-Baptiste ,  WHEATLEY, John A. ,  EPSTEIN, Kenneth A. ,  THOMPSON, David Scott ,  LAUTERS, Michael E.

IPC: G02B6/00 ,  F21V8/00 ,  G02B5/04

Abstract: Optical systems are disclosed. More particularly, optical systems including an asymmetric turning film (110) with at least a first (120) and second light source (130) are disclosed. Selection of geometries for the asymmetric turning film can enable different output viewing angles depending on the selective illumination of the first light source, the second light source, or both. The optical systems disclosed may be suitable in both luminaires and displays.

公开(公告)号：WO2009102951A3

公开(公告)日：2009-08-20

申请号：PCT/US2009/034047

申请日：2009-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  EPSTEIN, Kenneth A. ,  ETZKORN, Stephen J. ,  NELSON, Eric W. ,  GEHLSEN, Mark D. ,  KOETHE, Brian G.

Inventor： EPSTEIN, Kenneth A. ,  ETZKORN, Stephen J. ,  NELSON, Eric W. ,  GEHLSEN, Mark D. ,  KOETHE, Brian G.

IPC: G02F1/13357 ,  G02B5/02

Abstract: An optical device has a first film (200) that has a first side and a second side. When illuminated by light (204) at the first side, the first film is characterized by a first fraction of broadly diffused transmitted light (206) and a second fraction of narrowly diffused transmitted light (208). A second film (202) is disposed to the second side of the first film. The second film has at least one free surface that diverts light. In some embodiments, the first film has a diffuse scattering optical density between 0.5 and 3. The device finds use in spreading and making light uniform in a backlight in a display such as a liquid crystal display.

公开(公告)号：WO2009100307A1

公开(公告)日：2009-08-13

申请号：PCT/US2009/033356

申请日：2009-02-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  O'NEILL, Mark B. ,  HART, Shandon D. ,  EPSTEIN, Kenneth A. ,  FREIER, David G. ,  LAMB, David J.

Inventor： O'NEILL, Mark B. ,  HART, Shandon D. ,  EPSTEIN, Kenneth A. ,  FREIER, David G. ,  LAMB, David J.

IPC: G02B6/00

CPC classification number: G02B6/0096 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055

Abstract: A backlight (120) that includes a front reflector (130) and a back reflector (160) that form a hollow light recycling cavity (162) having an output surface (164) is disclosed. The front reflector includes at least four directional recycling films (132). The backlight also includes a semi-specular diffuser disposed between the front reflector and the back reflector, and one or more light sources (166) disposed to emit light into the light recycling cavity.

Abstract translation: 公开了一种背光（120），其包括形成具有输出表面（164）的中空光循环腔（162）的前反射器（130）和后反射器（160）。 前反射器包括至少四个定向再循环膜（132）。 背光还包括设置在前反射器和后反射器之间的半镜面扩散器，以及设置成将光发射到光再循环腔中的一个或多个光源（166）。

公开(公告)号：WO2007084343A1

公开(公告)日：2007-07-26

申请号：PCT/US2007/000775

申请日：2007-01-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WHITNEY, Leland R. ,  EPSTEIN, Kenneth A. ,  WHEATLEY, John A.

IPC: G02F1/13357 ,  G02F1/1335 ,  G02B5/30

CPC classification number: G02F1/133604 ,  G02F1/133605

Abstract: Disclosed herein is a display device having a back reflector; a display panel; one or more light sources disposed between the back reflector and the display panel; a first layer having first light reflective regions and first light transmissive regions, the first layer disposed between the one or more light sources and the display panel; and a second layer having second light reflective regions and second light transmissive regions, wherein the second layer is disposed spaced apart from the first layer and between the first layer and the display panel; wherein the light source illuminates the display panel through the first and second layers. Also disclosed herein is a method of controlling light within the display device.

Abstract translation: 本文公开了具有背反射器的显示装置; 显示面板; 设置在后反射器和显示面板之间的一个或多个光源; 具有第一光反射区域和第一透光区域的第一层，所述第一层设置在所述一个或多个光源和所述显示面板之间; 以及具有第二光反射区域和第二透光区域的第二层，其中所述第二层与所述第一层间隔开并且位于所述第一层和所述显示面板之间; 其中所述光源通过所述第一层和所述第二层照亮所述显示面板。 本文还公开了一种控制显示装置内的光的方法。