Title:
連続ウェブ状光学フィルム積層体ロール及びその製造方法
Document Type and Number:
Japanese Patent JP5740493
Kind Code:
B2
Abstract:
Provided is a continuous web of polarizing film for an organic EL display device which has a thickness of 10 µm or less and exhibits high optical characteristics. The polarizing film for an organic EL display device is made of a polyvinyl alcohol type resin having a molecularly oriented dichroic material, and formed through stretching to have a thickness of 10 µm or less and exhibit optical characteristics satisfying the following conditions: T ¥ 43; and P ¥ 99.5, wherein T is a single layer transmittance, and P is a polarization rate. The polarizing film for an organic EL display device may be prepared by subjecting a laminate comprising a non-crystallizable ester type thermoplastic resin substrate and the polyvinyl alcohol type resin layer formed on the substrate, to 2-stage stretching consisting of preliminary in-air stretching and in-boric-acid-solution stretching.
Inventors:
Kitagawa Takeharu
Takuya Nakazono
Shusaku Goto
Minoru Miyatake
Tomohiro Mori
Takushi Kamijou
Takuya Nakazono
Shusaku Goto
Minoru Miyatake
Tomohiro Mori
Takushi Kamijou
Application Number:
JP2014002095A
Publication Date:
June 24, 2015
Filing Date:
January 09, 2014
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; B29C55/04; B32B27/30; G02F1/1335; H01L51/50; H05B33/02; B29K29/00; B29K67/00; B29L9/00; B29L11/00
Domestic Patent References:
| JP2003279748A | ||||
| JP4377961B2 |
Foreign References:
| WO2009128241A1 | ||||
| WO2010071093A1 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi