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    DISPLAY OPTICAL FILM AND BACKLIGHT UNIT
    82.
    发明申请
    DISPLAY OPTICAL FILM AND BACKLIGHT UNIT 有权

    公开(公告)号：US20250123517A1

    公开(公告)日：2025-04-17

    申请号：US18987262

    申请日：2024-12-19

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Gilles J. Benoit ,  Carl A. Stover ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Quinn D. Sanford

    IPC: G02F1/1335 ,  G02F1/13357

    Abstract: An optical stack for reflecting and transmitting light in a predetermined wavelength range includes stacked first and second optical films, the predetermined wavelength range defining a first wavelength range and a remaining wavelength range. For normally incident light and for each wavelength in a first wavelength range, the first optical film substantially reflects light having a first polarization state, and substantially transmits light having a second polarization state. For each of the first and second polarization states, for wavelengths in the first wavelength range, the second optical film has a maximum optical transmittance Tmax for light incident at a first incident angle, and an optical transmittance Tmax/2 for light incident at a second incident angle, where the second incident angle is greater than the first incident angle by less than about 50 degrees. For wavelengths in the remaining wavelength range, the second optical film reflects at least 80% of light.

    OPTICAL FILM AND GLASS LAMINATE
    84.
    发明申请
    OPTICAL FILM AND GLASS LAMINATE 有权

    公开(公告)号：US20240427070A1

    公开(公告)日：2024-12-26

    申请号：US18828201

    申请日：2024-09-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam D. Haag ,  Brianna N. Wheeler ,  Matthew B. Johnson ,  William F. Edmonds

    IPC: G02B5/30

    Abstract: An optical film includes a plurality of alternating first and second layers. The first layers have a first in-plane birefringence, the second layers have a second in-plane birefringence, and the second in-plane birefringence is less than the first in-plane birefringence and greater than 0.03. The first layers may include polyethylene terephthalate homopolymer and the second layers may include glycol-modified co (polyethylene terephthalate). The optical film has a shrinkage along a first direction of greater than 4% and a shrinkage along an orthogonal second direction of greater than 3% when heated at 150° C. for 15 minutes. A glass laminate is prepared by disposing the optical film between glass layers and laminating the optical film to the glass layers.

    MULTILAYER OPTICAL FILM
    85.
    发明申请
    MULTILAYER OPTICAL FILM 有权

    公开(公告)号：US20240369751A1

    公开(公告)日：2024-11-07

    申请号：US18776825

    申请日：2024-07-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam D. Haag ,  William B. Black ,  Robert M. Biegler ,  Matthew B. Johnson ,  Edward J. Kivel

    IPC: G02B5/30 ,  B32B7/02

    Abstract: A multilayer optical film includes a plurality of polymeric layers arranged sequentially adjacent to each other. A difference in thickness between spaced apart first and second polymeric layers in the plurality of polymeric layers is less than about 10%. Each polymeric layer that is disposed between the first and second polymeric layers has a thickness less than about 400 nm. Each layer in a group of at least three polymeric layers in the plurality of polymeric layers that are disposed between the first and second polymeric layers has a thickness greater than an average thickness of the first and second polymeric layers by about 20% to about 500%. The group of at least three polymeric layers includes at least one pair of immediately adjacent polymeric layers.

    Optical system and optical combination
    86.
    发明授权
    Optical system and optical combination 有权

    公开(公告)号：US12092855B2

    公开(公告)日：2024-09-17

    申请号：US18038285

    申请日：2021-11-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam D. Haag ,  Matthew B. Johnson ,  Ryan T. Fabick

    IPC: F21V8/00 ,  G02F1/13357

    CPC classification number: G02B6/0056 ,  G02B6/0055 ,  G02F1/13362

    Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof toward a display panel. The emitted light includes substantially distinct blue, green and red emission spectra having respective blue, green and red peaks at respective blue, green and red peak wavelengths, and corresponding blue, green and red full widths at half maxima (FWHMs). The blue FWHM extends from a smaller blue wavelength to a longer blue wavelength. The optical system further includes reflective polarizer disposed on the emission surface of the extended illumination source. The reflective polarizer includes a plurality of first polymeric layers. The optical system also includes an optical filter disposed between the reflective polarizer and the emission surface of the extended illumination source.

    OPTICAL SYSTEM AND OPTICAL COMBINATION
    87.
    发明公开
    OPTICAL SYSTEM AND OPTICAL COMBINATION 审中-公开

    公开(公告)号：US20230417979A1

    公开(公告)日：2023-12-28

    申请号：US18038285

    申请日：2021-11-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Adam D. Haag ,  Matthew B. Johnson ,  Ryan T. Fabick

    IPC: F21V8/00

    CPC classification number: G02B6/0056 ,  G02B6/0055

    Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof toward a display panel. The emitted light includes substantially distinct blue, green and red emission spectra having respective blue, green and red peaks at respective blue, green and red peak wavelengths, and corresponding blue, green and red full widths at half maxima (FWHMs). The blue FWHM extends from a smaller blue wavelength to a longer blue wavelength. The optical system further includes reflective polarizer disposed on the emission surface of the extended illumination source. The reflective polarizer includes a plurality of first polymeric layers. The optical system also includes an optical filter disposed between the reflective polarizer and the emission surface of the extended illumination source.

    Backlighting for display systems
    88.
    发明授权
    Backlighting for display systems 有权

    公开(公告)号：US11782310B2

    公开(公告)日：2023-10-10

    申请号：US18073813

    申请日：2022-12-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Yu Hsin Lu ,  Gary T. Boyd ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Carl A. Stover ,  Adam D. Haag

    IPC: G02F1/00 ,  G02F1/13357 ,  G02B1/04 ,  G02F1/1335

    CPC classification number: G02F1/133606 ,  G02B1/04 ,  G02F1/133514 ,  G02F1/133536 ,  G02F1/133603

    Abstract: A display system includes a light source configured to emit light from a light exit surface, the emitted light having an emitted wavelength. An optical filter is disposed on the light exit surface of the light source. One or more light converting films are disposed between the optical filter and the light exit surface of the light source. The one or more light converting films are configured to receive the emitted light from the light source and convert at least portions of the received emitted light to blue, green, and red lights having respective blue, green and red wavelengths. For a substantially normally incident light and for at least an in-plane first polarization state, the optical filter reflects more than about 80% of the incident light having the emitted wavelength, and transmits greater than about 60% of the incident light for each of the blue, green and red wavelengths.

    Backlight for an Image Forming Device Comprising an Optical Cavity Formed by Opposing Cold and Hot Mirrors
    90.
    发明申请
    Backlight for an Image Forming Device Comprising an Optical Cavity Formed by Opposing Cold and Hot Mirrors 有权

    公开(公告)号：US20230019291A1

    公开(公告)日：2023-01-19

    申请号：US17952588

    申请日：2022-09-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Quinn D. Sanford ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Nathaniel K. Naismith

    IPC: G02F1/1335 ,  G02F1/13357

    Abstract: A backlight for an image forming device includes spaced-apart front and back optical reflectors defining an optical cavity therebetween, and at least one light source for emitting light into the optical cavity. The front optical reflector may be disposed between the image forming device and the back optical reflector. For substantially normally incident light and for nonoverlapping first and second wavelength ranges, the front optical reflector may transmit at least 70% of light for each wavelength in the first wavelength range, and may reflect at least 70% of light for each wavelength in the second wavelength range. The back optical reflector may reflect at least 70% of light for each wavelength in the first wavelength range, and may transmit at least 70% of light for each wavelength in the second wavelength range. The emitted light may have at least one wavelength in the first wavelength range and at least one wavelength in the second wavelength range.

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