Title:
An optical display which has a polarization film
Document Type and Number:
Japanese Patent JP6048984
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.
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Inventors:
Kitagawa Takeharu
Shusaku Goto
Minoru Miyatake
Tomohiro Mori
Takushi Kamijou
Kentaro Yoshida
Satoshi Kunikata
Shusaku Goto
Minoru Miyatake
Tomohiro Mori
Takushi Kamijou
Kentaro Yoshida
Satoshi Kunikata
Application Number:
JP2015078939A
Publication Date:
December 21, 2016
Filing Date:
April 08, 2015
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; B29C55/04; G02F1/1333; G02F1/1335; G02F1/13363; G06F3/041; G09F9/00; H01L51/50; H05B33/02; B29K29/00; B29K67/00; B29L9/00; B29L11/00
Domestic Patent References:
| JP10040004A | ||||
| JP2003279748A | ||||
| JP2009093074A | ||||
| JP2011227450A |
Foreign References:
| WO2007119560A1 |
Attorney, Agent or Firm:
Koichi Tsujii
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo
Sadao Kumakura
Fumiaki Otsuka
Takaki Nishijima
Hiroyuki Suda
Hiroshi Uesugi
Naoki Kondo
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