Title:
OPTICAL FILM, OPTICAL FILM MANUFACTURING METHOD, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/132607
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an optical film which can be produced efficiently and which suppresses unevenness in display. A further purpose of the present invention is to provide an optical film manufacturing method for manufacturing said optical film, and a polarizing plate and a liquid crystal display device provided with said optical film. This optical film has a slow axis in a direction inclined with respect to the longitudinal direction and has a cyclo-olefin resin as the primary component, and is characterized in that the film thickness is 30 µm or less, the in-plane retardation value Ro is in the range 80-180 nm, and the film thickness deviation in the width direction is 2.0 µm or less.
Inventors:
HAGIWARA TATSUKI (JP)
Application Number:
PCT/JP2015/080330
Publication Date:
August 25, 2016
Filing Date:
October 28, 2015
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; B29C55/04; C08J5/18; C08L45/00; G02F1/13363; B29K45/00; B29L7/00; B29L11/00
Domestic Patent References:
| WO2013118171A1 | 2013-08-15 |
Foreign References:
| JP2006293342A | 2006-10-26 | |||
| JP2007002027A | 2007-01-11 | |||
| JP2014038357A | 2014-02-27 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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