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    LAMINATE, OPTICAL ELEMENT, AND LIGHT GUIDE ELEMENT
    11.
    发明公开
    LAMINATE, OPTICAL ELEMENT, AND LIGHT GUIDE ELEMENT 审中-公开

    公开(公告)号：US20240345301A1

    公开(公告)日：2024-10-17

    申请号：US18756434

    申请日：2024-06-27

    Applicant: FUJIFILM Corporation

    Inventor： Yuki FUKUSHIMA ,  Keisuke KODAMA ,  Shunya KATOH ,  Hideki KANEIWA

    IPC: G02B5/30 ,  C09K19/04 ,  C09K19/18 ,  C09K19/20 ,  C09K19/32 ,  G02F1/1335

    CPC classification number: G02B5/3016 ,  C09K19/18 ,  C09K19/2028 ,  C09K19/322 ,  G02F1/133524 ,  C09K2019/0448 ,  C09K2019/181 ,  C09K2019/2035 ,  C09K2323/021

    Abstract: A first object of the present invention is to provide a laminate having excellent light resistance. In addition, a second object of the present invention is to provide an optical element including the laminate and a light guide element.
    A laminate of the present invention includes an optically anisotropic layer consisting of a cured layer of a composition containing a liquid crystal compound and a pair of oxygen barrier layers which are disposed on both sides of the optically anisotropic layer, in which the optically anisotropic layer has a liquid crystal alignment pattern in which an orientation of an optical axis derived from the liquid crystal compound is changed while continuously rotating along at least one in-plane direction, the composition contains a compound having a partial structure represented by Formula (I), the composition contains, as the liquid crystal compound, the compound having the partial structure represented by Formula (I), or the composition contains, as a compound which is not the liquid crystal compound, the compound having the partial structure represented by Formula (I), and an oxygen permeability coefficient of the oxygen barrier layer at 25° C. and 50% RH is 1.0×10−11 cm3·cm/(cm2·s·mmHg) or less.




    In Formula (I), A1 and A2 each independently represent an aromatic hydrocarbon ring group or an aromatic heterocyclic group, which may have a substituent. * represents a bonding position.

    REFLECTIVE SHEET AND TRANSFER FILM FOR REFLECTIVE SHEET
    12.
    发明申请
    REFLECTIVE SHEET AND TRANSFER FILM FOR REFLECTIVE SHEET 有权

    公开(公告)号：US20220011618A1

    公开(公告)日：2022-01-13

    申请号：US17487490

    申请日：2021-09-28

    Applicant: FUJIFILM Corporation

    Inventor： Ryuji SANETO ,  Akira YAMAMOTO ,  Hideki KANEIWA ,  Makoto ISHIGURO ,  Michio NAGAI

    IPC: G02F1/137 ,  B32B7/023 ,  G02B5/08

    Abstract: Provided are a reflective sheet including a cholesteric liquid crystal layer and having excellent reflection wavelength range, diffuse reflectivity, reflectivity, hardness, and scratch resistance; and a transfer film for a reflective sheet that is used for the reflective sheet. The reflective sheet includes a substrate, an adhesive layer, a cholesteric liquid crystal layer, and a hard coat layer in this order, in which in a cross-section of the cholesteric liquid crystal layer observed, at least a part of bright portions and dark portions has a flapping structure, the cholesteric liquid crystal layer has a pitch gradient structure in which a helical pitch changes in a thickness direction, and the helical pitch on the adhesive layer side is larger than that on the hard coat layer side.

    LAMINATE AND WINDOW
    13.
    发明申请
    LAMINATE AND WINDOW 审中-公开

    公开(公告)号：US20190219753A1

    公开(公告)日：2019-07-18

    申请号：US16360609

    申请日：2019-03-21

    Applicant: FUJIFILM Corporation

    Inventor： Hideki KANEIWA ,  Yujiro YANAI ,  Akira YAMAMOTO

    IPC: G02B5/30 ,  G02F1/1335 ,  C09K19/04

    CPC classification number: G02B5/3016 ,  B32B7/02 ,  C09K19/0403 ,  E06B9/24 ,  G02B5/30 ,  G02B5/305 ,  G02B5/3066 ,  G02B5/3075 ,  G02F1/133536

    Abstract: A laminate has a first polarizer, a first patterned optical anisotropic layer, a second patterned optical anisotropic layer, and a second polarizer, in which an angle formed between transmission axes of the polarizers is 90°+5°; each of the patterned optical anisotropic layers has three or more phase difference regions, which have different slow axis directions and in which the slow axis directions continuously change, in a plane of each of the first patterned optical anisotropic layer and the second patterned optical anisotropic layer; a transmission display state and a light-blocking display state are switched with each other by changing an angle formed between the slow axis direction of each of the phase difference regions of the first patterned optical anisotropic layer and the slow axis direction of each of the phase difference regions of the second patterned optical anisotropic layer that is superposed on each of the phase difference regions of the first patterned optical anisotropic layer; a combination of the patterned optical anisotropic layers is a combination of a +A plate and −A plate; and at least one of the polarizers is a reflective-type polarizer.

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