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    TOUCH SYSTEMS USING NEAR INFRARED FILMS
    1.
    发明申请
    TOUCH SYSTEMS USING NEAR INFRARED FILMS 有权

    公开(公告)号：US20250044888A1

    公开(公告)日：2025-02-06

    申请号：US18292045

    申请日：2022-07-25

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Fan Long ,  Edward S. Hagermoser ,  Bharat R. Acharya

    IPC: G06F3/041 ,  G06F3/042

    Abstract: A display system includes a substrate, an optically reflecting first film defining a plurality of first openings across a length and a width of the first major surface, pluralities of visible light emitting first devices, infrared light emitting second devices, and infrared light detecting third devices disposed in the first openings of the first film and mounted on the substrate, and an optically reflecting second film disposed on the pluralities of first, second, and third devices and the optically reflecting first film opposite the substrate. For a visible wavelength range and an infrared wavelength range, the first film has an average reflectance of greater than about 60% for each of the visible and infrared wavelength ranges, and the second film has an average reflectance of greater than about 60% for the visible wavelength range and an average transmittance of greater than about 50% for the infrared wavelength range.

    Display systems using IR and UV transparent optical films
    2.
    发明授权
    Display systems using IR and UV transparent optical films 有权

    公开(公告)号：US12287085B2

    公开(公告)日：2025-04-29

    申请号：US18663323

    申请日：2024-05-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Bharat R. Acharya ,  Fan Long ,  Edward S. Hagermoser ,  Jathan D. Edwards

    IPC: F21V9/14 ,  A61L2/08 ,  A61L2/10 ,  F21Y113/00 ,  G02F1/1335 ,  G02F1/13357

    Abstract: A display system includes visible light emitting first devices configured to emit a first light having at least a first visible wavelength; ultraviolet light emitting second devices configured to emit a second light having at least a second ultraviolet wavelength; a display panel disposed on the first and second devices; and a reflective polarizer disposed between the display panel and the first and second devices, such that the reflective polarizer has, for the visible wavelength, an average optical reflectance of greater than about 50% when an incident light is polarized along an in-plane first direction and an average optical transmittance of greater than about 50% when the incident light is polarized along an in-plane orthogonal second direction; and an optical transmission of greater than about 30% for the at least the second wavelength and for at least one of the first and second polarization states.

    DISPLAY SYSTEMS USING IR AND UV TRANSPARENT OPTICAL FILMS
    6.
    发明公开
    DISPLAY SYSTEMS USING IR AND UV TRANSPARENT OPTICAL FILMS 审中-公开

    公开(公告)号：US20230250937A1

    公开(公告)日：2023-08-10

    申请号：US18102851

    申请日：2023-01-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Bharat R. Acharya ,  Fan Long ,  Edward S. Hagermoser ,  Jathan D. Edwards

    IPC: F21V9/14 ,  A61L2/10 ,  A61L2/08

    CPC classification number: F21V9/14 ,  A61L2/10 ,  A61L2/085 ,  F21Y2113/10

    Abstract: A display system includes visible light emitting first devices configured to emit a first light having at least a first visible wavelength; ultraviolet light emitting second devices configured to emit a second light having at least a second ultraviolet wavelength; a display panel disposed on the first and second devices; and a reflective polarizer disposed between the display panel and the first and second devices, such that the reflective polarizer has, for the visible wavelength, an average optical reflectance of greater than about 50% when an incident light is polarized along an in-plane first direction and an average optical transmittance of greater than about 50% when the incident light is polarized along an in-plane orthogonal second direction; and an optical transmission of greater than about 30% for the at least the second wavelength and for at least one of the first and second polarization states.

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