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Title:
位相差フィルムの製造方法、位相差フィルム、偏光板及び液晶表示装置
Document Type and Number:
Japanese Patent JP5120379
Kind Code:
B2
Abstract:
Provided is a method for manufacturing a phase difference film having at least two optical anisotropic layers different from each other. In the method, a base material layer composed of a positive birefringent polymer is drawn, a negative birefringent polymer solution is applied and dried on the base material layer to form a negative birefringent layer, then, a laminated body of the base material layer and the negative birefringent layer is drawn in a direction orthogonally intersecting with the drawing direction of the base material layer.

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Inventors:
Ayako Onouchi
Shigeki Oka
Application Number:
JP2009531191A
Publication Date:
January 16, 2013
Filing Date:
August 26, 2008
Export Citation:
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Assignee:
Konica Minolta Advanced Layer Co., Ltd.
International Classes:
G02B5/30; B29C55/14; C08J5/18; C08J7/043; G02F1/1335; G02F1/13363; B29L9/00; B29L11/00
Domestic Patent References:
JP2004163684A2004-06-10
JP2004325971A2004-11-18
JP2002156525A2002-05-31
JP2007199616A2007-08-09
JP2004326089A2004-11-18
Attorney, Agent or Firm:
Hatta International Patent Corporation



 
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