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    Polarizer, polarizing plate, and image display apparatus
    1.
    发明授权
    Polarizer, polarizing plate, and image display apparatus 有权

    公开(公告)号：US10234611B2

    公开(公告)日：2019-03-19

    申请号：US15271891

    申请日：2016-09-21

    Applicant: NITTO DENKO CORPORATION

    Inventor： Shusaku Goto ,  Akinori Izaki ,  Daisuke Ogomi

    IPC: G02B5/30 ,  C08J7/04 ,  C09D129/04 ,  G02B1/04 ,  G02F1/1335 ,  H04N5/232

    Abstract: There is provided a polarizer that can realize multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus. A polarizer according to an embodiment of the present invention includes a resin film containing iodine, wherein the polarizer has formed therein a transparent portion having a transmittance higher than that of another portion, and when the polarizer is placed under an environment having a temperature of 60° C. and a humidity of 90% for 2 hours, a transmittance change (ΔTs) of the transparent portion is 10% or less.

    POLARIZER
    2.
    发明申请
    POLARIZER 审中-公开

    公开(公告)号：US20180173050A1

    公开(公告)日：2018-06-21

    申请号：US15735264

    申请日：2016-06-20

    Applicant: NITTO DENKO CORPORATION

    Inventor： Masahiro Yaegashi ,  Shinobu Nagano ,  Shusaku Goto ,  Daisuke Ogomi ,  Yuki Nakano

    IPC: G02F1/1335 ,  G02B5/30 ,  H01L51/50 ,  H05B33/02

    CPC classification number: G02F1/133528 ,  G02B5/30 ,  G02B5/3033 ,  H01L51/50 ,  H05B33/02

    Abstract: There is provided a polarizer having a non-polarization portion that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, the polarizer being excellent in dimensional stability and external appearance of the non-polarization portion. A polarizer according to an embodiment of the present invention includes a resin film containing a dichromatic substance, wherein: the polarizer has a non-polarization portion at a predetermined position; and the non-polarization portion includes a thin-walled portion thinner than another portion of the resin film.

    ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR
    6.
    发明申请
    ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR 有权
    光学薄膜连续网卷及其生产方法

    公开(公告)号：US20160054494A1

    公开(公告)日：2016-02-25

    申请号：US14918186

    申请日：2015-10-20

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeharu KITAGAWA ,  Takuya Nakazono ,  Shusaku Goto ,  Minoru Miyatake ,  Tomohiro Mori ,  Takashi Kamijo

    IPC: G02B5/30 ,  G02B27/28 ,  G02B1/08

    CPC classification number: G02B5/305 ,  G02B1/08 ,  G02B5/3033 ,  G02B27/288 ,  Y10T428/1041 ,  Y10T428/14 ,  Y10T428/15

    Abstract: A method of producing a roll of a continuous web of an optical film laminate, usable in a process of laminating an optical film sheet including a polarizing film and formed to a size corresponding to that an optical panel to a surface of the optical panel being fed to a lamination position, is disclosed. The polarizing film is prepared by subjecting a laminate including a thermoplastic resin substrate and a PVA type resin layer formed on the substrate, to uniaxial 2-stage stretching to reduce a thickness of the PVA type resin layer to 10 μm or less, and causing a dichroic material to be absorbed in the PVA type resin layer. A carrier film is releasably attached to the continuous web of optical film laminate including the polarizing film, through an adhesive layer. A defect inspection is performed for the optical film laminate and the adhesive layer.

    Abstract translation: 一种制造光学膜层叠体的连续卷筒纸的方法，可用于将包括偏振膜的光学膜片层压并且形成为与所述光学板相对应的尺寸的光学膜片的工艺，以提供给被馈送的光学板的表面 公开了层压位置。 通过对形成在基板上的热塑性树脂基板和PVA型树脂层的层叠体进行单轴2级拉伸，将PVA类树脂层的厚度缩小到10μm以下，制作偏光膜， 二色性材料被吸收在PVA型树脂层中。 载体膜通过粘合剂层可释放地附着到包括偏振膜的光学膜层压板的连续幅材上。 对光学膜层叠体和粘合剂层进行缺陷检查。

    METHOD OF PRODUCING POLARIZING PLATE
    7.
    发明申请
    METHOD OF PRODUCING POLARIZING PLATE 有权
    生产偏光板的方法

    公开(公告)号：US20140285887A1

    公开(公告)日：2014-09-25

    申请号：US14095517

    申请日：2013-12-03

    Applicant: NITTO DENKO CORPORATION

    Inventor： Shusaku Goto ,  Takeshi Saitou ,  Masashi Shinagawa ,  Yuuki Nakano ,  Minoru Miyatake

    IPC: G02B5/30 ,  B32B37/12

    CPC classification number: G02B5/305 ,  B29C55/026 ,  B29K2029/04 ,  B32B37/12 ,  B32B38/10 ,  B32B38/14 ,  B32B2037/1253 ,  B32B2037/1276 ,  B32B2037/243 ,  B32B2038/0028 ,  B32B2307/42 ,  B32B2309/105 ,  B32B2457/202

    Abstract: A method of producing a polarizing plate according to an embodiment of the present invention includes: stretching and dyeing a laminate including a resin substrate and a polyvinyl alcohol-based resin layer formed on one side of the resin substrate to produce a polarizing film on the resin substrate; laminating a first protective film on the polarizing film on an opposite side to the resin substrate; and peeling the resin substrate, followed by laminating a second protective film on the polarizing film on a side from which the resin substrate has been peeled. The laminating of at least one of the first protective film and the second protective film is performed through an adhesive having a moisture content of 10% or less.

    Abstract translation: 根据本发明的实施方式的偏振片的制造方法包括：在树脂基板的一面上形成树脂基板和聚乙烯醇类树脂层的层叠体的拉伸和染色，以在树脂上形成偏振膜 基质; 在与树脂基板相反的一侧的偏振膜上层压第一保护膜; 剥离树脂基板，然后在剥离树脂基板的一侧的偏光膜上层叠第二保护膜。 第一保护膜和第二保护膜中的至少一个的层压通过水分含量为10％以下的粘合剂进行。

    Polarizing plate with phase-difference layer and image display device
    8.
    发明授权
    Polarizing plate with phase-difference layer and image display device 有权

    公开(公告)号：US10156671B2

    公开(公告)日：2018-12-18

    申请号：US15551113

    申请日：2016-02-15

    Applicant: NITTO DENKO CORPORATION

    Inventor： Takeharu Kitagawa ,  Takashi Shimizu ,  Shusaku Goto

    IPC: G02B5/30 ,  G02B1/08 ,  G02B1/14

    Abstract: There is provided a polarizing plate with a retardation layer being extremely thin and having excellent durability. A polarizing plate with a retardation layer includes a polarizer; a protective layer bonded onto one side of the polarizer through intermediation of a first adhesive layer; and a retardation layer bonded onto another side of the polarizer through intermediation of a second adhesive layer. The polarizer has a thickness of from 2 μm to 12 μm, a boric acid content of 18 wt % or more, an iodine content of 2.1 wt % or more, a single layer transmittance of 44.2% or more, a polarization degree of 98% or more, and an orientation function of 0.35 or more. The retardation layer has a thickness of 50 μm or less and a birefringence Δnxy of 0.0025 or more. The first and second adhesive layer each has a thickness of 2 μm or less.

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