Title:
POLARIZING ELEMENT, POLARIZING PLATE HAVING SAID POLARIZING ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE HAVING SAID POLARIZING ELEMENT OR SAID POLARIZING PLATE
Document Type and Number:
WIPO Patent Application WO/2016/035864
Kind Code:
A1
Abstract:
The present invention provides a polarizing element which, while having high transmittance, is able to render achromatic white when displaying white and achromatic black when displaying black. A polarizing element comprising a base material that contains an azo compound as a constituent component, wherein the polarizing element is characterized in that the film thickness is 1 to 30 μm, the single transmittance is 35 to 80%, the absolute values of the chromaticity a* value and b* value calculated during measurements of natural light transmittance according to JIS Z8781-4:2013 are both 1 or less when the polarizing element is used alone, are both 2 or less when two of the polarizing elements are arranged so that the absorption axes thereof are directed in parallel to each other, and are both 2 or less when two of the polarizing elements are arranged so that the absorption axes thereof are directed orthogonally to each other.
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Inventors:
MOCHIZUKI NORIAKI (JP)
Application Number:
PCT/JP2015/075113
Publication Date:
March 10, 2016
Filing Date:
September 03, 2015
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
POLATECHNO CO LTD (JP)
POLATECHNO CO LTD (JP)
International Classes:
G02B5/30; C09B31/072; C09B33/28; C09B45/28; G02F1/1335
Domestic Patent References:
| WO2010095447A1 | 2010-08-26 | |||
| WO2013141236A1 | 2013-09-26 | |||
| WO2012165223A1 | 2012-12-06 | |||
| WO2015111472A1 | 2015-07-30 |
Foreign References:
| JP2013210624A | 2013-10-10 | |||
| JPH05295281A | 1993-11-09 | |||
| JP2013057909A | 2013-03-28 | |||
| JP2004198163A | 2004-07-15 |
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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