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    Optical display device
    23.
    发明授权
    Optical display device 有权

    公开(公告)号：US10025013B2

    公开(公告)日：2018-07-17

    申请号：US13791017

    申请日：2013-03-08

    Applicant: NITTO DENKO CORPORATION

    Inventor： Kentaro Ikeshima ,  Minoru Miyatake ,  Yuki Nakano

    IPC: G02B5/30 ,  G02F1/1335 ,  B29C55/02

    CPC classification number: G02B5/3033 ,  B29C55/026 ,  G02F1/133528 ,  G02F2001/133531

    Abstract: An optical display device which includes a display panel, and at least one polarizing film including a polyvinyl alcohol-based resin layer disposed on a viewing side with respect to the display panel, and having an optical arrangement forming a cross-Nicol relationship with regard to polarized light entering the polarizing film from the side of the display panel. The polarizing film is produced to have a thickness of 10 μm or less, by a method comprising the steps of: forming a polyvinyl alcohol-based resin layer on a resin substrate; stretching the polyvinyl alcohol-based resin layer integrally with the resin substrate; and dyeing the polyvinyl alcohol-based resin layer using a dichroic material. The polarizing film is disposed in the optical display device in a state in which a surface of the polarizing film as a contact surface with the resin substrate during the production thereof is oriented toward a side opposite to the display panel.

    ROLL OF CONTINUOUS WEB OF OPTICAL FILM LAMINATE AND PRODUCTION METHOD THEREFOR
    29.
    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
    30.
    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。

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