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    BACKLIGHT WITH COLLIMATING REFLECTIVE POLARIZER
    1.
    发明申请
    BACKLIGHT WITH COLLIMATING REFLECTIVE POLARIZER 审中-公开

    公开(公告)号：WO2022243874A1

    公开(公告)日：2022-11-24

    申请号：PCT/IB2022/054584

    申请日：2022-05-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOVER, Carl A. ,  SOUSA, Matthew E. ,  ACHARYA, Bharat R. ,  FORSYTHE, Benjamin J. ,  TAYLOR, Robert D. ,  SANFORD, Quinn D.

    IPC: G02F1/1333 ,  G02F1/13357 ,  G06F3/041 ,  G02B5/26 ,  G02B5/30

    Abstract: A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.

    REFLECTIVE POLARIZER AND DISPLAY SYSTEM INCLUDING SAME
    3.
    发明申请
    REFLECTIVE POLARIZER AND DISPLAY SYSTEM INCLUDING SAME 审中-公开

    公开(公告)号：WO2022079507A1

    公开(公告)日：2022-04-21

    申请号：PCT/IB2021/058253

    申请日：2021-09-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOVER, Carl A. ,  TAYLOR, Robert D. ,  ACHARYA, Bharat R.

    IPC: G02B5/30 ,  G06T1/00 ,  G06F3/042 ,  A61B5/1172

    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.

    OPTICAL CONSTRUCTION AND DISPLAY SYSTEM INCLUDING SAME
    4.
    发明申请
    OPTICAL CONSTRUCTION AND DISPLAY SYSTEM INCLUDING SAME 审中-公开

    公开(公告)号：WO2021224761A1

    公开(公告)日：2021-11-11

    申请号：PCT/IB2021/053688

    申请日：2021-05-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SOUSA, Matthew E. ,  ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William Blake ,  SANFORD, Quinn D. ,  DENICOLA, Lisa A.

    IPC: G02B5/30 ,  G02B5/02

    Abstract: An optical construction includes a reflective polarizer having a structured major surface, and an optically diffusive layer conformably disposed on the structured major surface so that opposing first and second major surfaces of the optically diffusive layer substantially conform to the structured major surface. The optically diffusive layer includes a plurality of nanoparticles defining a plurality of voids therebetween. For normally incident light and visible and infrared wavelength ranges: in the visible wavelength range and for a first polarization state, the optical construction has an average total transmittance of greater than about 40% and an average specular transmittance Vs; in the visible wavelength range and for an orthogonal second polarization state, the optical construction has an average total reflectance of greater than about 80%; and in the infrared wavelength range, the optical construction has an average specular transmittance Is, Is/ Vs ≥ 2.5.

    MULTILAYER PARTIAL MIRROR, BACKLIGHT, AND DISPLAY SYSTEM
    5.
    发明申请
    MULTILAYER PARTIAL MIRROR, BACKLIGHT, AND DISPLAY SYSTEM 审中-公开

    公开(公告)号：WO2023281357A1

    公开(公告)日：2023-01-12

    申请号：PCT/IB2022/056006

    申请日：2022-06-28

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAAG, Adam D. ,  BENOIT, Gilles J. ,  JOHNSON, Stephen A. ,  MINNO, Samuel A. ,  SANFORD, Quinn D. ,  ZHAO, Lin ,  TAYLOR, Robert D.

    IPC: G02B5/08 ,  G02B5/20 ,  G02B5/30 ,  G02F1/1335 ,  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.

    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM
    8.
    发明申请
    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM 审中-公开

    公开(公告)号：WO2022123345A1

    公开(公告)日：2022-06-16

    申请号：PCT/IB2021/060142

    申请日：2021-11-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY [US]/[US]

    Inventor： ACHARYA, Bharat R. ,  SITTER, Brett J. ,  TAYLOR, Robert D. ,  TIAN, Zhicheng ,  DIZIO, James P. ,  SANFORD, Quinn D. ,  HACKBARTH, Kent C. ,  SOUSA, Matthew E.

    IPC: G02B5/30 ,  G02B5/02 ,  G02B1/04

    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.

    OPTICAL FILM
    9.
    发明申请
    OPTICAL FILM 审中-公开

    公开(公告)号：WO2021224760A1

    公开(公告)日：2021-11-11

    申请号：PCT/IB2021/053687

    申请日：2021-05-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOVER, Carl A. ,  ZHAO, Lin ,  BENOIT, Gilles J. ,  TAYLOR, Robert D.

    IPC: G02B5/30 ,  G02B5/28

    Abstract: An optical film includes a plurality of polymeric layers arranged along at least a portion of a thickness of the optical film. Each polymeric layer has an average thickness less than about 300 nm. The plurality of polymeric layers includes a first polymeric layer having a largest average thickness among the plurality of polymeric layers, and a second polymeric layer disposed between a third polymeric layer and the first polymeric layer. The first and second polymeric layers are separated by N1 polymeric layers where 2 ≤N1 ≤ 10. The second and third polymeric layers are separated by N2 polymeric layers where N2 ≥ 10. The first, second and third polymeric layers have respective average thicknesses tl, t2 and t3, where t1 is greater than t2 by at least 10%, and t2 is greater than t3 by at most 2%.

    OPTICALLY DIFFUSIVE FILM WITH ELONGATED STRUCTURES
    10.
    发明申请
    OPTICALLY DIFFUSIVE FILM WITH ELONGATED STRUCTURES 审中-公开

    公开(公告)号：WO2021224716A1

    公开(公告)日：2021-11-11

    申请号：PCT/IB2021/053423

    申请日：2021-04-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  COLE, Matthew S. ,  ACHARYA, Bharat R. ,  SOUSA, Matthew E. ,  TAYLOR, Robert D. ,  FORSYTHE, Benjamin J.

    IPC: G02B5/02 ,  G02B5/30

    Abstract: An optically diffusive film includes an optical substrate layer with opposing first and second major surfaces; and an optical layer disposed on the second major surface of the optical substrate layer and including a structured major surface having a plurality of spaced apart elongated structures elongated along a same first direction and arranged at a substantially uniform density, each elongated structure including a peak such that, in a plane of a cross-section of the elongated structure that is parallel to the first direction and comprises the peak, the elongated structure has a substantially flat top region; wherein for substantially normally incident light and a visible wavelength range and an infrared wavelength range, the optical substrate layer has an average total transmittance or reflectance of greater than about 60% in the visible wavelength range and an average specular transmittance of greater than about 60% in the infrared wavelength range.

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