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    REFLECTIVE POLARIZER AND DISPLAY SYSTEM INCLUDING SAME
    1.
    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.

    PARTIALLY REFLECTING MULTILAYER OPTICAL FILMS WITH REDUCED COLOR
    4.
    发明申请
    PARTIALLY REFLECTING MULTILAYER OPTICAL FILMS WITH REDUCED COLOR 审中-公开
    部分反射多层光学薄膜与减少颜色

    公开(公告)号：WO2011146288A1

    公开(公告)日：2011-11-24

    申请号：PCT/US2011/035967

    申请日：2011-05-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WEBER, Michael F. ,  STOVER, Carl A.

    Inventor： WEBER, Michael F. ,  STOVER, Carl A.

    IPC: G02B5/30 ,  G02B27/10 ,  G02B5/28

    CPC classification number: G02B5/3066 ,  B29C47/0021 ,  B29C47/0057 ,  B29D11/0073 ,  B32B7/02 ,  G02B5/285 ,  G02B5/3041 ,  G02B5/305 ,  G02B27/141 ,  G02B27/142 ,  G02B27/144 ,  G02B27/283 ,  Y10T156/10

    Abstract: A multilayer optical film body includes a first and second packet of microlayers. Each packet partially transmits and partially reflects light over an extended wavelength range, such as the visible region, for normally incident light polarized along a first principal axis of the film body. In combination, the first and second packets have an intermediate reflection and transmission (e.g. 5-95% internal transmission, on average) for the normally incident light, and similar intermediate reflection/transmission (e.g. 10-90% internal transmission, on average) for oblique light. The packets are laminated or otherwise connected so that light can pass through the packets sequentially. In at least a first test area of the film body, a high frequency spectral variability of the combination of packets is less than a high frequency spectral variability of the first packet by itself, and may also be less than a high frequency spectral variability of the second packet by itself.

    Abstract translation: 多层光学膜体包括第一和第二微层包装体。 对于沿着胶片主体的第一主轴偏振的正常入射光，每个包部分地透射并部分地反射在诸如可见光区域的扩展波长范围上的光。 结合起来，第一和第二分组具有用于正常入射光的中间反射和透射（例如平均为5-95％的内部透射），以及类似的中间反射/透射（例如平均为10-90％的内部透射） 用于斜光。 分组被层叠或以其他方式连接，使得光可以顺序地通过分组。 在胶片体的至少第一测试区域中，分组组合的高频谱变化小于第一分组自身的高频谱变异性，并且还可能小于第一分组的高频谱变异性 第二个包本身。

    OPTICAL FILMS FOR DISPLAY SYSTEMS
    5.
    发明申请
    OPTICAL FILMS FOR DISPLAY SYSTEMS 审中-公开

    公开(公告)号：WO2023275667A1

    公开(公告)日：2023-01-05

    申请号：PCT/IB2022/055720

    申请日：2022-06-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAN, Heykyoung ,  YU, Jihoon ,  VANDERLOFSKE III, John F. ,  PADIYATH, Raghunath ,  REED, John F. ,  STOVER, Carl A.

    IPC: G02B5/30 ,  G02B5/28

    Abstract: An optical construction includes an optical film including a plurality of polymeric layers and an optical retarder disposed on the optical film. For a substantially normally incident light and for a visible wavelength range of about 420 nm to about 680 nm and an infrared wavelength range of about 900 nm to about 1100 nm: for the incident light polarized along each of mutually orthogonal in-plane first and second directions, the plurality of polymeric layers has an optical transmittance of greater than about 60% for at least one visible wavelength in the visible wavelength range and an optical reflectance of greater than about 60% for at least one infrared wavelength in the infrared wavelength range. For the incident light polarized along at least one of the first and second directions, the optical retarder has an optical retardance of greater than about 1000 nm at the at least one visible wavelength.

    BACKLIGHT WITH COLLIMATING REFLECTIVE POLARIZER
    10.
    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.

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