公开(公告)号：WO2021224782A1

公开(公告)日：2021-11-11

申请号：PCT/IB2021/053718

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  ATTARD, Joseph P. ,  FORSYTHE, Benjamin J. ,  YUST, David T. ,  SOUSA, Matthew E. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William Blake ,  COLE, Matthew S. ,  STAY, Matthew S. ,  SMITH, Matthew R.D. ,  SWANSON, Jeremy O. ,  PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  STOVER, Carl A. ,  ZHAO, Lin ,  BENOIT, Gilles J.

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

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：WO2023275748A1

公开(公告)日：2023-01-05

申请号：PCT/IB2022/056001

申请日：2022-06-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： GILLETTE, Kristy A. ,  YANG, Zhaohui ,  ATTARD, Joseph P. ,  DENKER, Martin E.

IPC: G02B5/02

Abstract: An integral optical stack includes a lens film having first and second major surfaces. The first major surface includes microlenses having an average peak-to-valley height PV1. A light absorbing layer is disposed on the lens film and defines a plurality of openings. A substantially planarizing optically diffusive layer is disposed on the first major surface of the lens film, conforming to the microlenses. The optically diffusive layer includes a plurality of nanoparticles. A polymeric material bonds the nanoparticles to each other to form a plurality of nanoparticle aggregates defining a plurality of voids therebetween. The optically diffusive layer has an average thickness greater than about 8 microns, and an index of refraction of less than about 1.25. Any non-planarity of a major surface of the optically diffusive layer due to the microlenses of the first major surface has an average peak-to-valley height PV2, PV2 ≤ 0.7 PV1.

公开(公告)号：WO2021224798A1

公开(公告)日：2021-11-11

申请号：PCT/IB2021/053751

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  ATTARD, Joseph P. ,  FORSYTHE, Benjamin J. ,  YUST, David T. ,  SOUSA, Matthew E. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William Blake ,  COLE, Matthew S. ,  STAY, Matthew S. ,  SMITH, Matthew R.D. ,  SWANSON, Jeremy O. ,  PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  STOVER, Carl A. ,  ZHAO, Lin ,  BENOIT, Gilles J.

IPC: G02B5/30 ,  G06F3/041 ,  G06F3/042

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：WO2021224715A1

公开(公告)日：2021-11-11

申请号：PCT/IB2021/053418

申请日：2021-04-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  ATTARD, Joseph P. ,  FORSYTHE, Benjamin J. ,  YUST, David T. ,  SOUSA, Matthew E.

IPC: G02B5/02 ,  G02B5/30 ,  G02B27/28 ,  G02F1/1333 ,  G02F1/1335 ,  G06F21/32 ,  G06K9/00

Abstract: A reflective polarizer includes a plurality of polymeric layers with opposing first and second outer layers, the first outer layer including a plurality of first particles, the second outer layer comprising a plurality of second particles, such that for substantially normally incident light and a first wavelength range and a second wavelength range, the plurality of polymeric layers reflects greater than about 80% of the incident light having a first polarization state in the first wavelength range; transmits greater than about 40% of the incident light having a second polarization state in the first wavelength range; transmits greater than about 60% of the incident light in the second wavelength range for each of the first and second polarization states; and an optical transmittance of the reflective polarizer versus wavelength for the first polarization state comprises a band edge between about 800 nm and about 1100 nm.

公开(公告)号：EP3963377A1

公开(公告)日：2022-03-09

申请号：EP20723549.0

申请日：2020-04-28

Applicant: 3M Innovative Properties Company

Inventor： TOY, Michelle L. ,  GILLETTE, Kristy A. ,  JOHNSON, Matthew B. ,  FRANEY, Eileen M. ,  HAROLDSON, Carley A. ,  ATTARD, Joseph P. ,  KALLMAN, Guy M. ,  KOLB, William Blake

IPC: G02B5/30