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    OPTICAL FILM, BACKLIGHT, AND DISPLAY
    12.
    发明申请
    OPTICAL FILM, BACKLIGHT, AND DISPLAY 审中-公开

    公开(公告)号：WO2022269437A1

    公开(公告)日：2022-12-29

    申请号：PCT/IB2022/055654

    申请日：2022-06-17

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SOUSA, Matthew E. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William B. ,  TAYLOR, Robert D. ,  FORSYTHE, Benjamin J.

    IPC: G02B5/22 ,  G02B5/02 ,  G02B5/30

    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.

    REFLECTIVE POLARIZER WITH IMPROVED OPTICAL CHARACTERISTICS
    14.
    发明申请
    REFLECTIVE POLARIZER WITH IMPROVED OPTICAL CHARACTERISTICS 审中-公开

    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.

    OPTICAL FILM
    16.
    发明申请
    OPTICAL FILM 审中-公开

    公开(公告)号：WO2020053832A1

    公开(公告)日：2020-03-19

    申请号：PCT/IB2019/057744

    申请日：2019-09-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： FABICK, Ryan T. ,  SOUSA, Matthew E. ,  BLACK, William B. ,  KIVEL, Edward J.

    IPC: G02B5/28 ,  G02B5/30

    Abstract: An optical film including a plurality of alternating first and second layers disposed on a skin layer is described. The skin layer has an average thickness greater than about 2 microns. A transmittance of the film for substantially normally incident light includes a band edge separating first and second wavelength ranges, where each range is at least 250 nm wide. A reflectance of the film is greater than about 95% for each wavelength in the first wavelength range; an average transmittance of the film is greater than about 80% in the second wavelength range; and a difference between maximum and minimum values of the optical transmittance of the film in the second wavelength range is less than about 30%. The band edge may have a slope that is greater than about 2%/nm. The transmittance may increase monotonically at least from about 10% to about 70% with increasing wavelength.

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