Polarizing plate and optical display including the same

    公开(公告)号:US10241249B2

    公开(公告)日:2019-03-26

    申请号:US15044839

    申请日:2016-02-16

    Abstract: A polarizing plate includes a polarizer, a bonding layer on an upper surface of the polarizer, a protective film on an upper surface of the bonding layer and having a moisture transmittance of about 30 g/m2·24 hr or less at 40° C. and 90 % relative humidity (RH), and a barrier layer on a lower surface of the polarizer and formed of a barrier layer composition including an alicyclic epoxy resin having a glass transition temperature of about 200° C. or more. The polarizing plate may have a light transmittance variation rate of 3% or less, as calculated by Equation 1: Light transmittance variation rate=|T0−T500|/T0×100  (1), where T0 is an initial light transmittance and T500 is a light transmittance after 500 hours as set forth herein.

    Polarizing plate, method for manufacturing the same, and optical display including the same

    公开(公告)号:US10146000B2

    公开(公告)日:2018-12-04

    申请号:US14675249

    申请日:2015-03-31

    Abstract: A polarizing plate, a method for manufacturing the same, and an optical display including the same are disclosed. The polarizing plate includes a polarizer, a protective coating layer on one surface of the polarizer, and an adhesive layer on one surface of the protective coating layer. The polarizing plate satisfies inequality 1. Rmax−Rmin≤0.02  (1) In Inequality 1, Rmax is the maximum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer, and Rmin is the minimum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer.

    ADHESIVE COMPOSITION FOR POLARIZING PLATE, ADHESIVE FILM FOR POLARIZING PLATE PREPARED USING THE SAME, POLARIZING PLATE COMPRISING THE SAME AND OPTICAL DISPLAY COMPRISING THE SAME
    15.
    发明申请
    ADHESIVE COMPOSITION FOR POLARIZING PLATE, ADHESIVE FILM FOR POLARIZING PLATE PREPARED USING THE SAME, POLARIZING PLATE COMPRISING THE SAME AND OPTICAL DISPLAY COMPRISING THE SAME 有权
    用于偏振板的粘合组合物,用于制备偏振板的粘合膜,包括该偏振板的偏光板和包含该平板的光学显示器

    公开(公告)号:US20160152876A1

    公开(公告)日:2016-06-02

    申请号:US14946701

    申请日:2015-11-19

    CPC classification number: C09J133/08 C09J133/066 G02B1/14 G02B5/305

    Abstract: An adhesive composition for polarizing plates includes a (meth)acrylic copolymer, an isocyanate crosslinking agent, and a silane coupling agent. The molar ratio (A) of the number of moles of hydroxyl groups in the (meth)acrylic copolymer may be about 2.5 mol % to about 4 mol %, the molar ratio (B) of the number of moles of alkoxy silane groups in the silane coupling agent may be about 50 mol % to about 80 mol %, and the molar ratio (C) of the number of moles of isocyanate groups of the isocyanate crosslinking agent may be about 20 mol % to about 50 mol %, based on the total number of moles of alkoxy silane groups of the silane coupling agent and isocyanate groups of the isocyanate crosslinking agent. An adhesive film is formed from the adhesive composition, a polarizing plate includes the adhesive film, and an optical display includes the polarizing plate.

    Abstract translation: 用于偏光板的粘合剂组合物包括(甲基)丙烯酸共聚物,异氰酸酯交联剂和硅烷偶联剂。 (甲基)丙烯酸共聚物中的羟基摩尔数的摩尔比(A)可以为约2.5摩尔%至约4摩尔%,烷氧基硅烷基的摩尔数(B)为 硅烷偶联剂可以为约50摩尔%至约80摩尔%,异氰酸酯交联剂的异氰酸酯基团的摩尔数的摩尔比(C)可以为约20摩尔%至约50摩尔%,基于 硅烷偶联剂的烷氧基硅烷基团的总摩尔数和异氰酸酯交联剂的异氰酸酯基团的摩尔数。 粘合剂膜由粘合剂组合物形成,偏光板包括粘合膜,光学显示器包括偏光板。

    Polarizing plate for light emitting display apparatus having adhesive layers of specified modulus

    公开(公告)号:US11237311B2

    公开(公告)日:2022-02-01

    申请号:US15869866

    申请日:2018-01-12

    Abstract: A polarizing plate includes a polarizing film, a first adhesive layer or a bonding layer, a retardation layer, and a third adhesive layer, and includes: a UV absorber comprising an indole UV absorber, a phenylbenzotriazole UV absorber, and/or a triazine UV absorber, wherein the UV absorber has a maximum absorption wavelength of 370 nm or higher, the polarizing plate has a light transmittance of 5% or less in a wavelength range of about 400 nm to about 405 nm and a light transmittance of 35% or higher in a wavelength range of about 440 nm to about 450 nm, the first adhesive layer has a modulus of 1×105 Pa or higher at 80° C. and a modulus of 1×105 Pa or higher at 30° C., and the third adhesive layer has a modulus of 5×104 Pa to 1×106 Pa at 80° C. and a modulus of 1×105 Pa to 3×106 Pa at 30° C.

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