Title:
DISPLAY DEVICE EQUIPPED WITH BASE MATERIAL HAVING POLARIZING FUNCTION
Document Type and Number:
WIPO Patent Application WO/2015/111472
Kind Code:
A1
Abstract:
[Problem] To provide a display device that can render white, render black, and produce a crisp display, even in a darkened room with substantially no outside light. [Solution] The display device is equipped with a base material (A) in which, when transmittance of wavelengths is obtained while measuring parallel to the absorption axes of two base materials, the average transmittance at 520 to 590 nm is 25% or greater, the absolute value of the difference of the average transmittance at 420 to 480 nm and the average transmittance at 520 to 590 nm is within 2.5%, and the absolute value of the difference of the average transmittance at 520 to 590 nm and the average transmittance at 590 to 660 nm is within 2.0%; and when transmittance of wavelengths is obtained while measuring orthogonal to the absorption axes of two base materials, the absolute value of the difference of the average transmittance at 420 to 480 nm and the average transmittance at 520 to 590 nm is within 0.3%, and the absolute value of the difference of the average transmittance at 520 to 590 nm and the average transmittance at 600 to 660 nm is within 0.3%.
Inventors:
MOCHIZUKI NORIAKI (JP)
ISHINABE TAKAHIRO (JP)
FUJIKAKE HIDEO (JP)
ISHINABE TAKAHIRO (JP)
FUJIKAKE HIDEO (JP)
Application Number:
PCT/JP2015/050726
Publication Date:
July 30, 2015
Filing Date:
January 14, 2015
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
POLATECHNO CO LTD (JP)
UNIV TOHOKU (JP)
POLATECHNO CO LTD (JP)
UNIV TOHOKU (JP)
International Classes:
G02F1/1335; G02B5/30; G02F1/1343
Domestic Patent References:
| WO2012108169A1 | 2012-08-16 |
Foreign References:
| JP2003344656A | 2003-12-03 | |||
| JP2005128571A | 2005-05-19 | |||
| JP2002221715A | 2002-08-09 | |||
| JP2003315550A | 2003-11-06 |
Attorney, Agent or Firm:
ONO Makoto et al. (JP)
Makoto Ono (JP)
Makoto Ono (JP)
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