中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

81 records (took 0.031 seconds)

    REFLECTIVE POLARIZER
    1.
    发明申请
    REFLECTIVE POLARIZER 审中-公开

    公开(公告)号：WO2022136974A1

    公开(公告)日：2022-06-30

    申请号：PCT/IB2021/060882

    申请日：2021-11-23

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： STOVER, Carl A. ,  HAAG, Adam D.

    IPC: G02B5/30 ,  G02B1/04

    Abstract: The present disclosure provides a reflective polarizer including a plurality of polymeric first layers and a plurality of polymeric second layers. A plot of an average layer thickness versus a layer number for the pluralities of polymeric first, but not second, layers includes a knee region separating a left region including at least 50 sequentially arranged polymeric first layers. The polymeric first layers have lower layer numbers, and the average layer thickness increases with increasing layer number from a right region including at least 5 sequentially arranged polymeric first layers. The polymeric first layers have higher layer numbers and the average thickness increases with increasing layer number, such that linear fits to the at least 50 sequentially arranged polymeric first layers and to the at least 5 sequentially arranged polymeric first layers have respective positive slopes S1 and S2, S2/S1 ≥ 5.

    ULTRAVIOLET-STABLE OPTICAL FILMS
    2.
    发明申请
    ULTRAVIOLET-STABLE OPTICAL FILMS 审中-公开

    公开(公告)号：WO2022084810A1

    公开(公告)日：2022-04-28

    申请号：PCT/IB2021/059412

    申请日：2021-10-13

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： JOHNSON, Matthew B . ,  HAAG, Adam D.

    IPC: G02B5/28 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13357 ,  G02B27/01

    Abstract: An optical stack includes a first optical film with a plurality of first polymeric layers disposed on a second optical film with a plurality of second polymeric layers, such that for an incident light and for a first polarization state: a reflectance of the plurality of first polymeric layers versus wavelength has a reflection band edge separating a shorter wavelength range with higher reflectance a longer wavelength range with lower reflectance; for at least a first wavelength in the shorter wavelength range, the plurality of second polymeric layers reflects less than about 70% of the incident light, and for at least a second wavelength in the longer wavelength range, the plurality of second polymeric layers reflects greater than about 80% of the incident light; and in the shorter wavelength range, the pluralities of first and second polymeric layers absorbs respective A1% and A2% of the incident light, A2/A1 ≥ 50.

    OPTICAL FILM AND OPTICAL STACK
    3.
    发明申请
    OPTICAL FILM AND OPTICAL STACK 审中-公开

    公开(公告)号：WO2020234801A1

    公开(公告)日：2020-11-26

    申请号：PCT/IB2020/054788

    申请日：2020-05-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAAG, Adam D. ,  CHEN, Yi-Chen ,  WANG, Tze Yuan ,  MATSUDA, Hiroki ,  TOY, Michelle L. ,  EISMIN, Ryan J. ,  VANDERLOFSKE, John F., III ,  MCDANIEL, David J. ,  JOHNSON, Matthew B.

    IPC: G02B5/30

    Abstract: An optical film includes a plurality of alternating first and second polymeric layers, such that the first polymeric layers have a smaller average in-plane index of refraction than the second polymeric layers and the first polymeric layers have a glass transition temperature of at least 107 deg. C. The optical film may be a reflective polarizer. An optical stack includes a linear absorbing polarizer and the reflective polarizer disposed on, and bonded to, the absorbing polarizer. The reflective polarizer has an optical reflectance of at least 60% for a first polarization state and an optical transmittance of at least 60% for an orthogonal second polarization state. When heated at 105 deg. C for 15 minutes, a difference in shrinkage of the reflective polarizer and the absorbing polarizer along the first and second polarization states is greater than about zero and 0.2%, respectively.

    PARTIAL REFLECTOR FOR CORRECTING COLOR SHIFT
    4.
    发明申请
    PARTIAL REFLECTOR FOR CORRECTING COLOR SHIFT 审中-公开

    公开(公告)号：WO2019069214A9

    公开(公告)日：2019-04-11

    申请号：PCT/IB2018/057624

    申请日：2018-10-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAAG, Adam D. ,  PARK, Sun Yong ,  NEVITT, Timothy J. ,  NIESON, Brianna N. ,  HUSTON, Jody L.

    IPC: G02B5/30 ,  G02B1/08

    Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Any, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be Δηχ, where |Δηχ| is at least 0.1 and |Δny| is no more than 0.04. The optical repeat units may have a smallest optical thickness Tl proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2-T1)/(T2+T1) is in a range of 0.05 to 0.2, and T2 is at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.

    PARTIAL REFLECTOR FOR CORRECTING COLOR SHIFT
    5.
    发明申请
    PARTIAL REFLECTOR FOR CORRECTING COLOR SHIFT 审中-公开

    公开(公告)号：WO2019069214A3

    公开(公告)日：2019-04-11

    申请号：PCT/IB2018/057624

    申请日：2018-10-02

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAAG, Adam D. ,  PARK, Sun Yong ,  NEVITT, Timothy J. ,  NIESON, Brianna N. ,  HUSTON, Jody L.

    IPC: G02B5/30 ,  G02B1/08

    Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Any, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be Δηχ, where |Δηχ| is at least 0.1 and |Δny| is no more than 0.04. The optical repeat units may have a smallest optical thickness Tl proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2-T1)/(T2+T1) is in a range of 0.05 to 0.2, and T2 is at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.

    REFLECTIVE OPTICAL METASURFACE FILMS
    8.
    发明申请
    REFLECTIVE OPTICAL METASURFACE FILMS 审中-公开

    公开(公告)号：WO2021220089A1

    公开(公告)日：2021-11-04

    申请号：PCT/IB2021/052955

    申请日：2021-04-09

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： WOLK, Martin B. ,  BROTT, Robert L. ,  STENSVAD, Karl K. ,  SAVVATEEV, Vadim N. ,  NELSON, James M. ,  ZHAO, Lin ,  RACE, Caitlin ,  HAAG, Adam D.

    IPC: G02B1/00 ,  G02B5/08 ,  G02B5/30 ,  G02B1/04 ,  G02B1/02

    Abstract: An optical metasurface film includes a flexible polymeric film having a first major surface, a patterned polymer layer having a first surface proximate to the first major surface of the flexible polymeric film and having a second nanostructured surface opposite the first surface, and a refractive index contrast layer including a refractive index contrast material adjacent to the nanostructured surface of the patterned polymer layer forming a nanostructured bilayer with a nanostructured interface. The nanostructured bilayer comprising a plurality of nanostructures disposed on the flexible polymeric film. The nanostructured bilayer imparts a light phase shift that varies as a function of position of the nanostructured bilayer on the flexible polymeric film. The light phase shift of the nanostructured bilayer defines a predetermined operative phase profile of the optical metasurface film. A light reflecting layer is in optical communication with the nanostructured bilayer.

    COLOR NEUTRAL EMISSIVE DISPLAY WITH NOTCHED REFLECTIVE POLARIZER
    10.
    发明申请
    COLOR NEUTRAL EMISSIVE DISPLAY WITH NOTCHED REFLECTIVE POLARIZER 审中-公开

    公开(公告)号：WO2021059191A1

    公开(公告)日：2021-04-01

    申请号：PCT/IB2020/058946

    申请日：2020-09-24

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： HAAG, Adam D. ,  DENKER, Martin E.

    IPC: H01L51/52 ,  G02B27/28

    Abstract: A display system is disclosed and includes a display and a reflective polarizer disposed on the display. For substantially normally incident light, for a primary wavelength λb, the reflective polarizer transmits at least 60% of the incident light having a first polarization state x and reflects at least 60% of the incident light having an orthogonal second polarization state y. For each of a first wavelength λuv and a second wavelength λbg, 0

Patent Agency Ranking