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Title:
OPTICAL COMPENSATION SHEET, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2006293331
Kind Code:
A
Abstract:

To provide an optical compensation sheet which has a small optical characteristic change with respect to an environmental temperature/humidity changes and has high freedom of design of in-plane retardation Re and film-thickness-direction retardation Rth, and to provide a polarizing plate and a liquid crystal display device having such an excellent optical compensation sheet.

The optical compensation sheet is made by laminating an optical anisotropic layer on a substrate film containing a cycloolefin addition polymer. The polarizing plate consists of a polarizer and two protection films disposed on both sides of the polarizer, wherein at least one of the protection films is the optical compensation sheet. The liquid crystal display device uses at least one polarizing plate.


Inventors:
OTANI SUMIO
OKARU IKUKO
Application Number:
JP2006065845A
Publication Date:
October 26, 2006
Filing Date:
March 10, 2006
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G02B5/30; B29C41/24; B32B7/02; B32B27/00; C08F232/00; G02F1/1335; G02F1/13363; B29K45/00; B29L7/00
Domestic Patent References:
JP2005037809A2005-02-10
JP2005037657A2005-02-10
JP2002321302A2002-11-05
JPH03122137A1991-05-24
JP2004066683A2004-03-04
JP2003315554A2003-11-06
Attorney, Agent or Firm:
Shohei Oguri
Hironori Honda
Toshimitsu Ichikawa
Takeshi Takamatsu



 
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