Title:
POLARIZING ELEMENT FORMED BY STACKING FILM HAVING HIGH RETARDATION AND LAYER CONTAINING DICHROIC DYE, AND DISPLAY DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2016/171127
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polarizing element that can be easily manufactured and has excellent polarization performance, and a display device that is provided with the polarizing element. A polarizing element of the present invention is characterized in that a stretched film having a retardation of 3000-50000 nm and a layer containing at least one type of dichroic dye are stacked therein and in that the thickness of the stretched film is 20-500 μm. This polarizing element employing this specific stretched film exhibits a high degree of polarization, specifically, a degree of polarization of 85% or higher, and exhibits high dichroism, specifically, dichroism of five or higher.
Inventors:
MOCHIZUKI NORIAKI (JP)
YOSHIDA SHOHEI (JP)
YOSHIDA SHOHEI (JP)
Application Number:
PCT/JP2016/062361
Publication Date:
October 27, 2016
Filing Date:
April 19, 2016
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
POLATECHNO CO LTD (JP)
POLATECHNO CO LTD (JP)
International Classes:
G02B5/30; C09B35/037; G02F1/1335
Domestic Patent References:
| WO2014061389A1 | 2014-04-24 |
Foreign References:
| JP2012256014A | 2012-12-27 | |||
| JP2012230390A | 2012-11-22 | |||
| JPH07134210A | 1995-05-23 | |||
| JPS5885405A | 1983-05-21 | |||
| JP2002090743A | 2002-03-27 | |||
| JPH09230142A | 1997-09-05 | |||
| JPH01161202A | 1989-06-23 | |||
| JP2012206472A | 2012-10-25 | |||
| JP2005017697A | 2005-01-20 | |||
| JPH07261024A | 1995-10-13 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
アインゼル Felix-Reinhardt (JP)
アインゼル Felix-Reinhardt (JP)
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