公开(公告)号：US20140355125A1

公开(公告)日：2014-12-04

申请号：US14367125

申请日：2012-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gary T. Boyd ,  Qingbing Wang ,  Tri D. Pham

IPC: 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。

公开(公告)号：US20140285912A1

公开(公告)日：2014-09-25

申请号：US13261868

申请日：2012-11-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gary T. Boyd ,  Qingbing WANG

IPC: G02B5/04

CPC classification number: G02B5/04 ,  G02B5/045 ,  G02B5/3083 ,  G02B6/0053 ,  G02B6/0056

Abstract: A brightness enhancement film includes a plurality of linear prisms disposed on a birefringent substrate. A light ray that enters the film from the substrate side and exits the film from the linear prisms side undergoes substantially a same phase retardation for mutually orthogonal polarization states while travelling within the film. The light ray exits the film at an angle from a normal to the substrate that is greater than 20 degrees.

Abstract translation: 亮度增强膜包括设置在双折射基板上的多个线性棱镜。 从衬底侧进入膜并从线性棱镜侧离开膜的光线在膜内行进时相互正交的极化状态基本上具有相同的相位延迟。 光线以与大于20度的基板的法线成一定角度离开膜。

公开(公告)号：US20140232960A1

公开(公告)日：2014-08-21

申请号：US14348272

申请日：2012-09-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Evan L. Schwartz ,  Mark J. Pellerite ,  Daniel W. Hennen ,  Marc D. Radcliffe ,  Michael L. Steiner ,  Marie A. Boulos ,  Michael E. Lauters ,  Gary T. Boyd ,  John P. Baetzold ,  John J. Stradinger ,  Vivian W. Jones

IPC: G02F1/13

CPC classification number: G02F1/1323 ,  B32B3/30 ,  B32B15/02 ,  B32B27/06 ,  B32B2307/412 ,  B32B2457/208 ,  G02B26/004 ,  G02F1/133377 ,  G02F1/1334 ,  G02F1/133524 ,  G02F1/13725 ,  G02F1/15 ,  G02F1/161 ,  G02F1/17

Abstract: An electronically switchable privacy films suitable for use in display devices are described. The electronically switchable privacy film comprises a pair of mutually opposing transparent electrodes; an optically transparent microstructured layer disposed between the transparent electrodes, the microstructured layer comprising a plurality of microstructured ribs extending across a surface thereof such that the microstructured ribs form an alternating series of ribs and channels; and electronically switchable material disposed in the channels, the electronically switchable material being capable of modulation between high and low absorption states upon application of an electric field across the transparent electrodes.

Abstract translation: 描述适用于显示装置的电子可切换隐私膜。 电子可切换隐私膜包括一对相互相对的透明电极; 设置在所述透明电极之间的光学透明微结构化层，所述微结构层包括跨越其表面延伸的多个微结构肋，使得所述微结构肋形成交替的一系列肋和通道; 以及设置在所述通道中的电子可切换材料，所述电子可切换材料能够在跨越所述透明电极的电场施加时在高吸收和低吸收状态之间进行调制。

公开(公告)号：US11885989B2

公开(公告)日：2024-01-30

申请号：US16772498

申请日：2018-12-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Daniel J. Schmidt ,  Caleb T. Nelson ,  Kevin W. Gotrik ,  Raymond J. Kenney ,  John A. Wheatley ,  Kenneth A. Epstein ,  Gary T. Boyd ,  Corey D. Balts

IPC: G02B5/02 ,  G02B5/28 ,  F21V8/00 ,  G02B5/30

CPC classification number: G02B5/0263 ,  G02B5/286 ,  G02B6/0053 ,  G02B5/305 ,  G02B2207/123

Abstract: A light control film, comprises a light input surface and alight output surface opposite the light input surface. Alternating transmissive regions and absorptive regions are disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and the alternating transmissive region and absorptive regions have a relative transmission at a viewing angle of 0 degrees of at least 75%.

公开(公告)号：US11782310B2

公开(公告)日：2023-10-10

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: G02F1/00 ,  G02F1/13357 ,  G02B1/04 ,  G02F1/1335

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

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.

公开(公告)号：US20220163704A1

公开(公告)日：2022-05-26

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.

公开(公告)号：US10775547B2

公开(公告)日：2020-09-15

申请号：US16497012

申请日：2018-03-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert M. Emmons ,  David A. Rosen ,  Nicholas A. Johnson ,  Gary T. Boyd ,  Trevor W. Stolber ,  Owen M. Anderson ,  Graham M. Clarke ,  Sherie A. Kristie ,  Edward C. Roberts ,  Kristy A. Gillette

IPC: F21V8/00

Abstract: A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.

公开(公告)号：US10698138B2

公开(公告)日：2020-06-30

申请号：US15568832

申请日：2016-04-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gary T. Boyd ,  Tri D. Pham ,  Nicholas A. Johnson ,  Oanh V. Pham ,  Sara S. Merritt ,  Stephen J. Etzkorn ,  Haiyan Zhang ,  Corey D. Balts ,  Joseph T. Aronson

IPC: G02B5/02 ,  G02B13/20 ,  F21V8/00 ,  G02B3/00 ,  G02B1/14 ,  C25D3/04 ,  C25D3/38 ,  C25D5/12 ,  G02F1/13357 ,  G02B5/04

Abstract: A diffuser including opposing structured first and second major surfaces is described. The first major surface includes a first plurality of surface structures providing a uniform first haze. The second major surface includes a first portion adjacent an edge and a second portion adjacent the first portion. The first portion includes a first region and a second region between the first region and the second portion. The second major surface includes a second plurality of surface structures providing a uniform second haze over the second portion and providing a third haze in the first portion. The third haze in the first region is higher than the second haze, and the third haze in the second region is monotonically decreasing. The second portion has a surface area of at least 90 percent of a surface area of the second major surface.

公开(公告)号：US20200103578A1

公开(公告)日：2020-04-02

申请号：US16497012

申请日：2018-03-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert M. Emmons ,  David A. Rosen ,  Nicholas A. Johnson ,  Gary T. Boyd ,  Trevor W. Stolber ,  Owen M. Anderson ,  Graham M. Clarke ,  Sherie A. Kristie ,  Edward C. Roberts ,  Kristy A. Gillette

IPC: F21V8/00

Abstract: A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.

公开(公告)号：US10605965B2

公开(公告)日：2020-03-31

申请号：US16156079

申请日：2018-10-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tri D. Pham ,  Steven H. Kong ,  Haiyan Zhang ,  Joseph T. Aronson ,  Michael R. Leaf ,  Gary T. Boyd ,  Nicholas A. Johnson ,  Qingbing Wang

IPC: G02B5/02 ,  F21V8/00 ,  B29C59/02 ,  C25D3/04 ,  C25D3/38 ,  C25D5/12 ,  C25D5/16 ,  G02F1/1335 ,  B29L11/00

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.