Title:
PRODUCTION METHOD FOR POLARIZING PLATE HAVING PHASE DIFFERENCE LAYER AND HARD COAT LAYER
Document Type and Number:
WIPO Patent Application WO/2020/246321
Kind Code:
A1
Abstract:
Provided is a method that makes it possible to conveniently produce a thin polarizing plate that has a phase difference layer and a hard coat layer and that is less susceptible to curling and makes for a stock roll that has an excellent layer structure. This production method for a polarizing plate that has a phase difference layer and a hard coat layer involves preparing a polarizer, forming a phase difference layer on one side of the polarizer to obtain a polarizing plate that has a phase difference layer, and forming a hard coat layer on the polarizing plate that has a phase difference layer on the reverse side of the polarizer from the phase difference layer.
Inventors:
KOJIMA TADASHI (JP)
ISHIHARA YASUTAKA (JP)
UWADA KAZUKI (JP)
ISHIHARA YASUTAKA (JP)
UWADA KAZUKI (JP)
Application Number:
PCT/JP2020/020817
Publication Date:
December 10, 2020
Filing Date:
May 27, 2020
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B37/14; B32B7/023; G02B1/14; G02B5/30
Domestic Patent References:
| WO2007032304A1 | 2007-03-22 | |||
| WO2014141734A1 | 2014-09-18 | |||
| WO2018135186A1 | 2018-07-26 |
Foreign References:
| JP2003248122A | 2003-09-05 | |||
| JP2020106825A | 2020-07-09 | |||
| JP2020060708A | 2020-04-16 | |||
| US20110090454A1 | 2011-04-21 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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