公开(公告)号：US20230214062A1

公开(公告)日：2023-07-06

申请号：US17996583

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Robert D. Taylor ,  Joseph P. Attard ,  Benjamin J. Forsythe ,  David T. Yust ,  Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William Blake Kolb ,  Matthew S. Cole ,  Matthew S. Stay ,  Matthew R.D. Smith ,  Jeremy O. Swanson ,  Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Carl A. Stover ,  Lin Zhao ,  Gilles J. Benoit

IPC: G06F3/042 ,  G02B5/30 ,  G02B5/02 ,  F21V8/00

CPC classification number: G06F3/0421 ,  G02B5/305 ,  G02B5/0226 ,  G02B6/0051

Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 mn≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

公开(公告)号：US20210116611A1

公开(公告)日：2021-04-22

申请号：US17056353

申请日：2019-05-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Daniel J. Theis ,  Tri D. Pham ,  Bradley S. English ,  Steven J. Botzet ,  Qingbing Wang ,  Shu-Ching Fan

IPC: G02B5/00 ,  G02B5/04 ,  B29D11/00

Abstract: An optical film having a first surface, an opposing second surface, and a thickness normal to the first and second surfaces is cut. Cutting the film forms a channel at least partially through the thickness of the film. A light control material is printed proximate to a surface of the film. The ink traverses through the channel by capillary motion.

公开(公告)号：US20200341336A1

公开(公告)日：2020-10-29

申请号：US16959710

申请日：2019-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tri D. Pham ,  Corey D. Balts ,  Felix B Bierbaum ,  Encai Hao ,  Simon P. Janeczko ,  Thomas J. Ludemann ,  Trevor W. Stolber ,  Qingbing Wang ,  Joseph D. Wheeldon

IPC: G02F1/13357 ,  F21V8/00

Abstract: An optical film assembly comprises a light redirecting film (110) having a first structured major surface (112) and a second, opposed major surface (114). An optical adhesive layer (120) is disposed on the second major surface of the light redirecting film. A light diffusion film (140) comprises a first major surface (142) comprising a light diffusion surface and a second, opposed major surface (144). A plurality of discrete optical decoupling structures (146) project from the light diffusion surface and contact the optical adhesive layer. An air gap (148) is defined between the first major surface of the light diffusion film and the optical adhesive layer. Embodiments of optical film assemblies described herein are useful, for example, for hiding optical defects and improving the brightness uniformity of light emitted by a light source.

公开(公告)号：US20200064525A1

公开(公告)日：2020-02-27

申请号：US16467221

申请日：2018-01-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kristopher J. Derks ,  Tri D. Pham ,  Kenneth A. Epstein ,  David J. Lamb

IPC: G02B5/02

Abstract: An optical film (210) includes a microstructured surface (211) comprising a plurality of prismatic structures (230), the microstructured surface (211) defining a reference plane (241-242) and a thickness direction (243) perpendicular to the reference plane; wherein the plurality of prismatic structures includes a plurality of facets (231), each facet having a facet normal direction forming a polar angle with respect to the thickness direction and an azimuthal angle along the reference plane, and wherein the microstructured surface has a surface azimuthal distribution of the plurality of facets that is substantially uniform, and wherein the microstructured surface has a surface polar distribution of the plurality of facets that has an off-axis peak polar distribution.

公开(公告)号：US10557973B2

公开(公告)日：2020-02-11

申请号：US14436770

申请日：2013-12-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: G02B5/02 ,  G02B5/04 ,  G02B5/30

Abstract: Brightness enhancing films with embedded diffusers are described. More specifically, films including a birefringent substrate, a prismatic layer carried by the substrate having linear prisms, and an embedded structured surface disposed between the substrate and the prismatic layer are disclosed. The embedded structured surface may include closely-packed structures. Processes for producing embedded structured surfaces having particular topographies are also disclosed.

公开(公告)号：US20190094418A1

公开(公告)日：2019-03-28

申请号：US16186046

申请日：2018-11-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert A. Yapel ,  Joseph T. Aronson ,  Matthew R.C. Atkinson ,  Gary T. Boyd ,  Slah Jendoubi ,  Mitchell A.F. Johnson ,  Scott R. Kaytor ,  Steven H. Kong ,  Fei Lu ,  Tri D. Pham ,  Robert B. Secor ,  Steven D. Solomonson

IPC: G02B1/10 ,  G02B5/02

Abstract: Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described. The optical film may include a first structured surface including a plurality of prismatic structures, and a second structured surface opposing the first structured surface and including a plurality of microstructures. An effective transmission of the optical film is not more than 1% less than a film with a comparable construction except for a smooth, non-structured second surface.

公开(公告)号：US09618791B2

公开(公告)日：2017-04-11

申请号：US14360105

申请日：2012-11-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Tri D. Pham ,  Steven H. C. Kong ,  Stephen J. Etzkorn ,  Robert L. Endres ,  Matthew B. Johnson

IPC: G02F1/1335

CPC classification number: G02F1/133606 ,  G02F1/133504 ,  G02F1/133536 ,  G02F2001/133607

Abstract: The present disclosure describes an optical stack that includes an asymmetric diffuser. As described herein, use of an asymmetric diffuser in an optical stack reduces undesirable defects in a display while maintaining optical gain and/or contrast of the display. The asymmetric diffuser is less diffusive along a first direction that is parallel with linearly extending structures of an associated light directing film.

公开(公告)号：US20160146982A1

公开(公告)日：2016-05-26

申请号：US14436770

申请日：2013-12-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: G02B5/02 ,  G02B5/30 ,  G02B5/04

Abstract: Brightness enhancing films with embedded diffusers are described. More specifically, films including a birefringent substrate, a prismatic layer carried by the substrate having linear prisms, and an embedded structured surface disposed between the substrate and the prismatic layer are disclosed. The embedded structured surface may include closely-packed structures. Processes for producing embedded structured surfaces having particular topographies are also disclosed.

Abstract translation: 描述了具有嵌入式漫射器的亮度增强膜。 更具体地，公开了包括双折射衬底，由具有线性棱镜的衬底承载的棱镜层以及设置在衬底和棱镜层之间的嵌入结构化表面的膜。 嵌入式结构化表面可以包括紧密堆积的结构。 还公开了用于生产具有特定形貌的嵌入式结构化表面的工艺。

公开(公告)号：US20160103270A1

公开(公告)日：2016-04-14

申请号：US14950147

申请日：2015-11-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph T. Aronson ,  Slah Jendoubi ,  Mitchell A.F. Johnson ,  Scott R. Kaytor ,  Tri D. Pham ,  Robert A. Yapel ,  Joseph A. Zigal ,  Steven J. McMan ,  Steven D. Solomonson ,  Steven Hin-Chung Kong ,  Fei Lu ,  Gary T. Boyd

IPC: F21V8/00 ,  G02B5/04 ,  G02B5/02 ,  G02B5/30

CPC classification number: G02B6/0053 ,  B32B2307/40 ,  G02B5/02 ,  G02B5/045 ,  G02B5/3033 ,  G02B6/0051 ,  G02B27/126 ,  G02F2001/133607

Abstract: Optical films, optical stacks including the optical films, and display systems including the optical films are described. The optical film includes a first major surface that may include a plurality of first microstructures that extend along a first direction. The optical film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%.

Abstract translation: 描述包括光学膜的光学膜，光学堆叠以及包括光学膜的显示系统。 光学膜包括可包括沿第一方向延伸的多个第一微结构的第一主表面。 光学膜还包括与第一主表面相对的第二主表面，并且包括多个第二微结构。 第二主表面的光学雾度不大于约3％，光学透明度不大于约85％。

公开(公告)号：US09229239B2

公开(公告)日：2016-01-05

申请号：US14186363

申请日：2014-02-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph T. Aronson ,  Slah Jendoubi ,  Mitchell A. F. Johnson ,  Scott R. Kaytor ,  Tri D. Pham ,  Robert A. Yapel ,  Joseph A. Zigal ,  Steven J. McMan ,  Steven D. Solomonson ,  Steven Hin-Chung Kong ,  Fei Lu ,  Gary T. Boyd

IPC: G02B27/12 ,  G02B5/02 ,  G02B5/04 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0053 ,  B32B2307/40 ,  G02B5/02 ,  G02B5/045 ,  G02B5/3033 ,  G02B6/0051 ,  G02B27/126 ,  G02F2001/133607

Abstract: Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%. The light redirecting film has an average effective transmission that is not less than about 1.75.

Abstract translation: 公开了光重定向膜。 光重新定向膜包括第一主表面，其包括沿着第一方向延伸的多个第一微结构。 光重定向膜还包括与第一主表面相对的第二主表面，并且包括多个第二微结构。 第二主表面的光学雾度不大于约3％，光学透明度不大于约85％。 光重定向膜具有不小于约1.75的平均有效透射率。