Method of producing roll of laminate strip with polarizing film

    公开(公告)号:US09618668B2

    公开(公告)日:2017-04-11

    申请号:US13728473

    申请日:2012-12-27

    CPC classification number: G02B5/305 B32B41/00 B32B2457/20 G02B5/3033

    Abstract: A method of producing a roll of an optical film laminate strip including a polarizing film includes the steps of: forming a continuous web of optical film laminate including a polarizing film which consists of a polyvinyl alcohol type resin layer and has a thickness of 10 μm or less, wherein the polarizing film is formed by performing an stretching sub-step of subjecting a laminate comprising a continuous web of thermoplastic resin substrate and a polyvinyl alcohol type resin layer formed on the substrate, to a uniaxial stretching in a lengthwise direction of the laminate based on 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching; cutting the continuous web of optical film laminate along a direction parallel to the length direction to form at least one continuous web of laminate strip having a given width; and winding the continuous web of laminate strip having the given width into a roll.

    METHOD FOR PRODUCING POLARIZING FILM
    47.
    发明申请
    METHOD FOR PRODUCING POLARIZING FILM 审中-公开
    生产极化膜的方法

    公开(公告)号:US20150369964A1

    公开(公告)日:2015-12-24

    申请号:US14767345

    申请日:2014-02-06

    Abstract: Provided is a manufacturing method for a polarizing film having excellent manufacturing efficiency while maintaining optical characteristics. A manufacturing method for a polarizing film of the present invention includes in this order, the steps of: stretching a resin substrate in a first direction; heating the resin substrate; forming a polyvinyl alcohol-based resin layer on the resin substrate, to thereby produce a laminate; and stretching the laminate in a second direction.

    Abstract translation: 提供一种在保持光学特性的同时具有优异的制造效率的偏振膜的制造方法。 本发明的偏振膜的制造方法依次包括以下步骤:在第一方向上拉伸树脂基板; 加热树脂基板; 在树脂基板上形成聚乙烯醇类树脂层,由此制造层压体; 以及沿第二方向拉伸所述层压体。

    LAMINATED POLARIZING PLATE, METHOD FOR PRODUCTION THEREOF AND LIQUID CRYSTAL DISPLAY
    48.
    发明申请
    LAMINATED POLARIZING PLATE, METHOD FOR PRODUCTION THEREOF AND LIQUID CRYSTAL DISPLAY 有权
    层压极化板,其生产方法和液晶显示

    公开(公告)号:US20150277009A1

    公开(公告)日:2015-10-01

    申请号:US14739680

    申请日:2015-06-15

    Abstract: The invention relates a long laminated polarizing plate (PL) comprising at least one reflective linear polarizer (Pr) having a transmission axis parallel to the longitudinal direction of the film, and at least one absorptive polarizer (Pa) having a transmission axis parallel to the longitudinal direction. In this long laminated polarizing plate (PL), the reflective linear polarizer (Pr) and the absorptive polarizer (Pa) are arranged such that their transmission axes are parallel to each other. The long laminated polarizing plate of the invention is excellent in productivity and is applicable to a large-sized liquid crystal display.

    Abstract translation: 本发明涉及一种长层压偏振片(PL),其包括具有平行于膜的纵向方向的透射轴的至少一个反射线性偏振器(Pr)和至少一个具有平行于膜的透射轴的吸收性偏振器(Pa) 纵向。 在该长层叠偏光板(PL)中,反射型线偏振片(Pr)和吸收型偏振片(Pa)的布置使得它们的透射轴彼此平行。 本发明的长层叠偏光板的生产率优异,适用于大型液晶显示装置。

    METHOD OF MANUFACTURING POLARIZING PLATE
    49.
    发明申请
    METHOD OF MANUFACTURING POLARIZING PLATE 有权
    制造极化板的方法

    公开(公告)号:US20140139919A1

    公开(公告)日:2014-05-22

    申请号:US14056178

    申请日:2013-10-17

    Abstract: A method of manufacturing a polarizing plate according to an embodiment of the present invention includes: stretching and dyeing a laminate having a resin substrate and a polyvinyl alcohol-based resin layer formed on at least one side of the resin substrate to produce a polarizing film on the resin substrate; laminating an optically functional film on the laminate on a polarizing film side to produce an optically functional film laminate; and peeling the resin substrate from the optically functional film laminate. The peeling is performed so that an angle α formed between a surface of the optically functional film laminate immediately before the peeling and a peeling direction of the resin substrate is smaller than an angle β formed between the surface of the optically functional film laminate immediately before the peeling and a peeling direction of the polarizing film.

    Abstract translation: 根据本发明的实施方式的偏光板的制造方法包括:在树脂基板的至少一面形成有树脂基板和聚乙烯醇系树脂层的层压体的拉伸和染色,以在 树脂基板; 在偏振膜侧的层压体上层叠光学功能膜,制作光学功能性膜层叠体; 以及从光学功能膜层压体剥离树脂基板。 进行剥离,使得在剥离之前的光学功能膜层叠体的表面与树脂基板的剥离方向之间形成的角度α小于角度&bgr; 在剥离前的光学功能性膜层叠体的表面与偏振膜的剥离方向之间形成。

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