Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2014/181695
Kind Code:
A1
Abstract:
The objective of the present invention is to provide an organic electroluminescent element which exhibits such a characteristic that the color thereof varies with the viewing angle by enhancing the viewing angle dependency thereof.
An organic electroluminescent element according to the present invention sequentially comprises, on a transparent substrate in the following order, a transparent electrode, at least two organic functional layer units, and an electrode that forms a pair with the transparent electrode. This organic electroluminescent element is characterized in that at least one of the organic functional layer units has a charge injection layer that is adjacent to the transparent electrode, and the average (∆n) of the absolute value of the refractive index difference between the transparent electrode and the charge injection layer within the measurement wavelength range of 400-800 nm is within the range of 0.5-2.0.
Inventors:
FURUKAWA SHUN (JP)
SHIDA KUNIAKI (JP)
NAKAYAMA TOMOYUKI (JP)
SHIDA KUNIAKI (JP)
NAKAYAMA TOMOYUKI (JP)
Application Number:
PCT/JP2014/061509
Publication Date:
November 13, 2014
Filing Date:
April 24, 2014
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H05B33/12; H01L51/50; H05B33/28
Foreign References:
| JP2007157629A | 2007-06-21 | |||
| JP2010010111A | 2010-01-14 | |||
| JP2007242733A | 2007-09-20 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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