公开(公告)号：US20240085608A1

公开(公告)日：2024-03-14

申请号：US18511500

申请日：2023-11-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Timothy J. Nevitt ,  Carl A. Stover ,  Andrew J. Ouderkirk ,  Robert D. Taylor ,  Zhaohui Yang

IPC: G02B5/30 ,  G02B5/08 ,  G02B5/18 ,  G02B5/28

CPC classification number: G02B5/3041 ,  G02B5/0825 ,  G02B5/1814 ,  G02B5/285 ,  G02B5/305 ,  G02B5/3083 ,  G02B27/10

Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.

公开(公告)号：US20230341615A1

公开(公告)日：2023-10-26

申请号：US17996676

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: F21V8/00 ,  G06V40/13

CPC classification number: G02B6/0056 ,  G02B6/0051 ,  G06V40/1318

Abstract: An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs≥2.5.

公开(公告)号：US20150378077A1

公开(公告)日：2015-12-31

申请号：US14769302

申请日：2014-02-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Timothy J. Nevitt ,  Michael F. Weber ,  Robert D. Taylor ,  Carl A. Stover

IPC: G02B5/30

CPC classification number: G02B5/3041 ,  G02B5/3083

Abstract: Polarizer stacks are described. More particularly, polarizer stacks that include an absorbing polarizer and multiple reflective polarizers, including at least one collimating reflective polarizer are described. Such polarizer stacks are capable of emitted light that is both collimated and color neutral. Backlights incorporating such polarizer stacks are also described.

Abstract translation: 描述了偏振器堆叠。 更具体地，描述了包括吸收偏振器和包括至少一个准直反射偏振器的多个反射偏振器的偏振器堆叠。 这种偏振器堆叠能够发出准直和色彩中性的发光。 还描述了结合了这种偏振片的背光源。

公开(公告)号：US20250076555A1

公开(公告)日：2025-03-06

申请号：US18950497

申请日：2024-11-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Brett J. Sitter ,  Robert D. Taylor ,  Zhicheng Tian ,  James P. DiZio ,  Quinn D. Sanford ,  Kent C. Hackbarth ,  Matthew E. Sousa

IPC: G02B5/30 ,  G02B1/04 ,  G02B5/26 ,  G06V40/13

Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.

公开(公告)号：US20250020837A1

公开(公告)日：2025-01-16

申请号：US18895687

申请日：2024-09-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Gilles J. Benoit ,  Stephen A. Johnson ,  Samuel A. Minno ,  Quinn D. Sanford ,  Lin Zhao ,  Robert D. Taylor

IPC: G02B5/08 ,  F21V8/00 ,  G02B5/30 ,  G02B27/28 ,  G02F1/13357

Abstract: A multilayer partial mirror includes a plurality of alternating first a second polymeric layers numbering at least 50 in total, disposed between, and integrally formed with, opposing first and second polymeric skin layers. For a visible wavelength range extending from about 420 nm to about 680 nm and an incident light propagating in an incident plane that includes a x-direction, and for an s-polarized incident light, the multilayer partial mirror has an average reflectance Rs1 for a first incident angle of less than about 10 degrees, and an average reflectance Rs2 for a second incident angle of greater than about 45 degrees, and for a p-polarized incident light, the multilayer partial mirror has an average reflectance Rp1 for the first incident angle, and an average reflectance Rp2 for the second incident angle. Each of Rs2/Rs1 and Rp2/Rp1 is greater than about 1.15.

公开(公告)号：US20240280734A1

公开(公告)日：2024-08-22

申请号：US18570767

申请日：2022-06-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William B. Kolb ,  Robert D. Taylor ,  Benjamin J. Forsythe

IPC: G02B5/02 ,  G02B5/30 ,  G02F1/13357

CPC classification number: G02B5/0226 ,  G02B5/305 ,  G02F1/133605 ,  G02F1/133606

Abstract: An optical film includes an optically diffusive layer including a plurality of nanoparticles dispersed between and across opposing first and second major surfaces thereof. The plurality of nanoparticles has a nanoparticle size distribution including distinct first and second peaks at respective nanoparticle sizes d1 and d2, wherein 1.5≤d2/d1≤10. The optically diffusive layer includes a polymeric material bonding the nanoparticles to each other. For a substantially collimated substantially normally incident light, the optical film has, in a visible wavelength, an average specular transmittance VTs and an average total transmittance VTt, and in an infrared wavelength range, an average total transmittance ITt and an average specular transmittance ITs, wherein 0.3≤(VTs/VTt)≤0.7, (VTs/ITs)≤0.25, and (ITs/ITt)≥0.7.

公开(公告)号：US20240264339A1

公开(公告)日：2024-08-08

申请号：US18569302

申请日：2022-06-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Gilles J. Benoit ,  Stephen A. Johnson ,  Samuel A. Minno ,  Quinn D. Sanford ,  Lin Zhao ,  Robert D. Taylor

IPC: G02B5/08 ,  G02B5/30 ,  G02B27/28 ,  G02F1/13357

CPC classification number: G02B5/0841 ,  G02B5/305 ,  G02B5/3066 ,  G02B5/3083 ,  G02B6/0055 ,  G02B27/281 ,  G02F1/133605

Abstract: A multilayer partial mirror includes a plurality of alternating first a second polymeric layers numbering at least 50 in total, disposed between, and integrally formed with, opposing first and second polymeric skin layers. For a visible wavelength range extending from about 420 nm to about 680 nm and an incident light propagating in an incident plane that includes a x-direction, and for an s-polarized incident light, the multilayer partial mirror has an average reflectance Rs1 for a first incident angle of less than about 10 degrees, and an average reflectance Rs2 for a second incident angle of greater than about 45 degrees, and for a p-polarized incident light, the multilayer partial mirror has an average reflectance Rp1 for the first incident angle, and an average reflectance Rp2 for the second incident angle. Each of Rs2/Rs1 and Rp2/Rp1 is greater than about 1.15.

公开(公告)号：US11960683B2

公开(公告)日：2024-04-16

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 ,  F21V8/00 ,  G02B5/02 ,  G02B5/30

CPC classification number: G06F3/0421 ,  G02B5/0226 ,  G02B5/305 ,  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 nm≤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：US20230350244A1

公开(公告)日：2023-11-02

申请号：US18247209

申请日：2021-09-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Robert D. Taylor ,  Bharat R. Acharya

IPC: G02F1/1335 ,  G02F1/1333 ,  G06V10/143

CPC classification number: G02F1/133536 ,  G02F1/13338 ,  G06V10/143

Abstract: A reflective polarizer has a transmittance for a first polarization state having a band edge separating a first wavelength range extending at least from about 450 nm to about 900 nm and a second wavelength range extending at least from about 1100 nm to about 1300 nm. For the first polarization state, the reflective polarizer has an average transmittance in the first wavelength range less than about 10% and an average transmittance in the second wavelength range greater than about 80%; and for a second polarization state, the reflective polarizer has an average transmittance in the first wavelength range greater than about 40% and an average transmittance in the second wavelength range greater than about 80%. A display system includes the reflective polarizer and an infrared light source configured to emit an infrared light having a wavelength W1. The band edge has a band edge wavelength W2>W1.

公开(公告)号：US10928571B2

公开(公告)日：2021-02-23

申请号：US15102117

申请日：2014-12-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Timothy J. Nevitt ,  Quinn D. Sanford ,  Robert D. Taylor ,  Carl A. Stover

IPC: G02B5/30 ,  F21V9/14

Abstract: Hybrid polarizers are described. More particularly, hybrid polarizers including reflective polarizer portions and hybrid polarizing portions, including embedded absorbing polarizing elements are described. The hybrid polarizers may be used in backlights or display devices.