Title:
OPTICAL FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/157557
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: an optical film which is suppressed in occurrence of alignment defect and iridescent unevenness; a polarizing plate which uses this optical film; and an image display device. An optical film of the present invention comprises a supporting body and an optically anisotropic layer that is provided on the supporting body. The optically anisotropic layer is a patterned optically anisotropic layer wherein two or more different regions having optical characteristics are patterned. The supporting body contains a polyethylene terephthalate resin, and has an in-plate retardation (Re) of 3,000-30,000 nm and a ratio of the in-plate retardation (Re) to the thickness-direction retardation (Rth), namely (Re)/(Rth) of 0.2-1.5.
Inventors:
HOSHINO WATARU (JP)
YAMADA NAOYOSHI (JP)
YAMADA NAOYOSHI (JP)
Application Number:
PCT/JP2014/058977
Publication Date:
October 02, 2014
Filing Date:
March 27, 2014
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363
Domestic Patent References:
| WO2011162198A1 | 2011-12-29 |
Foreign References:
| JP2004109171A | 2004-04-08 | |||
| JP2012230282A | 2012-11-22 |
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Mochitoshi Watanabe (JP)
Mochitoshi Watanabe (JP)
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