Title:
OPTICAL LAMINATED FILM MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/061389
Kind Code:
A1
Abstract:
Provided is an optical laminated film manufacturing method for manufacturing an optical laminated film in which a polarizing film is stacked on a stretched film having a stretch axis in one in-plane direction, wherein the optical laminated film manufacturing method is characterized by the following: including a rubbing step for rubbing the surface of the stretch film in a prescribed rubbing direction and a polarizing film forming step for coating a liquid crystalline solution including a dichroic material on the surface of the stretch film that was rubbed in the rubbing step, and for forming the polarizing film by orienting the dichroic material in a direction orthogonal to the rubbing direction; that the stretch axis of the stretch film and the orthogonal direction form the rubbing angle; and that the rubbing direction in the rubbing step is determined on the basis of a rubbing angle that is larger than the intersection angle formed by the stretch axis of the stretch film and an absorption axis of the polarizing film.
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Inventors:
ASANOI YOSHIAKI (JP)
MATSUDA SHOICHI (JP)
MATSUDA SHOICHI (JP)
Application Number:
PCT/JP2013/075151
Publication Date:
April 24, 2014
Filing Date:
September 18, 2013
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B32B7/02; G02F1/1335
Foreign References:
| JP2011118137A | 2011-06-16 | |||
| JP2009282176A | 2009-12-03 | |||
| JP2008249970A | 2008-10-16 | |||
| JP2003195041A | 2003-07-09 | |||
| JP2004070344A | 2004-03-04 |
Attorney, Agent or Firm:
NEXT INTERNATIONAL (JP)
Patent business corporation NeXT (JP)
Patent business corporation NeXT (JP)
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