公开(公告)号：US20170299919A1

公开(公告)日：2017-10-19

申请号：US15515885

申请日：2015-09-29

Applicant: NITTO DENKO CORPORATION

Inventor： Emi Miyai ,  Kentaro Ikeshima ,  Toshiki Omine ,  Satoshi Mita ,  Atsushi Kishi ,  Tomonori Ueno

IPC: G02F1/1335 ,  G02B1/11 ,  C23C16/509 ,  G02B5/30 ,  G02F1/13363

CPC classification number: G02F1/133528 ,  B23B27/00 ,  B23B37/00 ,  B32B27/00 ,  B32B38/10 ,  B32B2307/42 ,  B32B2457/202 ,  C23C16/509 ,  G02B1/11 ,  G02B5/3033 ,  G02F1/133632 ,  G02F2413/10

Abstract: A method for producing a polarizing film includes (1) preparing a laminate (a) which includes a carrier film and a polarizer with a thickness of 10 μm or less formed on one surface of the carrier film and contains a polyvinyl alcohol-based resin; (2) peeling off the carrier film from the laminate (a); and (3) applying a liquid material to a side of the laminate (a) from which the carrier film has been peeled off and then solidifying or curing the liquid material to form a transparent resin layer with a thickness of 0.2 μm or more, wherein the liquid material contains a resin component or a curable component capable of forming a resin layer. This production method enables the achievement of a polarizing film which is able to have satisfactory durability in a heated environment even in cases where a thin polarizer is used therefor.

公开(公告)号：US10088705B2

公开(公告)日：2018-10-02

申请号：US15515885

申请日：2015-09-29

Applicant: NITTO DENKO CORPORATION

Inventor： Emi Miyai ,  Kentaro Ikeshima ,  Toshiki Omine ,  Satoshi Mita ,  Atsushi Kishi ,  Tomonori Ueno

IPC: G02F1/1335 ,  G02B1/11 ,  C23C16/509 ,  G02B5/30 ,  G02F1/13363 ,  B23B37/00 ,  B23B27/00

Abstract: A method for producing a polarizing film includes (1) preparing a laminate (a) which includes a carrier film and a polarizer with a thickness of 10 μm or less formed on one surface of the carrier film and contains a polyvinyl alcohol-based resin; (2) peeling off the carrier film from the laminate (a); and (3) applying a liquid material to a side of the laminate (a) from which the carrier film has been peeled off and then solidifying or curing the liquid material to form a transparent resin layer with a thickness of 0.2 μm or more, wherein the liquid material contains a resin component or a curable component capable of forming a resin layer. This production method enables the achievement of a polarizing film which is able to have satisfactory durability in a heated environment even in cases where a thin polarizer is used therefor.

公开(公告)号：US20170031072A1

公开(公告)日：2017-02-02

申请号：US15207662

申请日：2016-07-12

Applicant: NITTO DENKO CORPORATION

Inventor： Mie Nakata ,  Shunsuke Murayama ,  Toshiki Omine ,  Tomohiro Yamashita

IPC: G02B5/30 ,  G02B1/18 ,  G02F1/1335 ,  G02F1/1343 ,  G02B1/14 ,  G02B5/20

CPC classification number: G02B5/305 ,  G02B1/14 ,  G02B1/16 ,  G02B5/208 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/134363

Abstract: It is an object of the present invention to provide a polarizing plate which can suppress display unevenness and yellow discoloration even when being applied to a liquid crystal panel and prevent a change in oblique hue, and a liquid crystal display device including the polarizing plate. A polarizing plate includes: a polyvinyl alcohol-based polarizer; a transparent protective film provided on one surface of the polyvinyl alcohol-based polarizer with an adhesive layer interposed therebetween; and a retardation film provided on the other surface of the polarizer with an adhesive layer interposed therebetween. The transparent protective film contains a (meth)acrylic resin and an ultraviolet absorber. The retardation film contains a cellulose resin and has an in-plane retardation of 5 nm or less and a thickness-direction retardation of 10 nm or less.

Abstract translation: 本发明的目的是提供一种即使在施加到液晶面板上并且防止倾斜色调变化时也能够抑制显示不均匀性和黄色变色的偏光板，以及包括偏光板的液晶显示装置。 偏振片包括：聚乙烯醇类偏振片; 在聚乙烯醇类偏振片的一个表面上设置有粘合剂层的透明保护膜; 以及设置在偏振片的另一个表面上的相位差膜，其间具有粘合剂层。 透明保护膜含有（甲基）丙烯酸树脂和紫外线吸收剂。 延迟膜含有纤维素树脂，其面内相位差为5nm以下，厚度方向延迟为10nm以下。