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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9112168 B1

PDFFull Text
Date of Patent:
Aug. 18, 2015

Filed:

Aug. 10, 2012

Organic electroluminescence element, illumination device and display device

Applicants:

Hiroshi Ishidai, Hachioji, JP;

Takeshi Hakii, Sagamihara, JP;

Inventors:

Hiroshi Ishidai, Hachioji, JP;

Takeshi Hakii, Sagamihara, JP;

Assignee:

KONICA MINOLTA, INC., Tokyo, JP;

Attorney:

Lucas & Mercanti, LLP

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
H01L 35/24 (2006.01); H01L 51/50 (2006.01); C07D 401/14 (2006.01); C07D 405/14 (2006.01); C07D 413/14 (2006.01); C07D 405/04 (2006.01); C07D 405/10 (2006.01); C07D 409/14 (2006.01); C07D 417/14 (2006.01); C07D 493/06 (2006.01); C07D 519/00 (2006.01); H01L 51/00 (2006.01); H01L 51/52 (2006.01); C07F 15/00 (2006.01); C07F 5/02 (2006.01); C07F 5/06 (2006.01); C07F 7/08 (2006.01); F21V 31/00 (2006.01); F21V 3/04 (2006.01); F21Y 101/02 (2006.01); F21Y 105/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5012 (2013.01); C07D 401/14 (2013.01); C07D 405/04 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 413/14 (2013.01); C07D 417/14 (2013.01); C07D 493/06 (2013.01); C07D 519/00 (2013.01); C07F 5/02 (2013.01); C07F 5/069 (2013.01); C07F 7/08 (2013.01); C07F 15/0026 (2013.01); C07F 15/0033 (2013.01); C07F 15/0086 (2013.01); C07F 15/0093 (2013.01); H01L 51/006 (2013.01); H01L 51/0072 (2013.01); H01L 51/0081 (2013.01); H01L 51/0085 (2013.01); H01L 51/5275 (2013.01); C07C 2103/18 (2013.01); F21V 3/0418 (2013.01); F21V 31/00 (2013.01); F21Y 2101/02 (2013.01); F21Y 2105/008 (2013.01); H01L 51/0087 (2013.01); H01L 51/5234 (2013.01); H01L 2251/5361 (2013.01);
Abstract

Provided are an organic electroluminescence element, an illumination device, and a display device having lower driving voltage and excellent luminous efficiency. An organic electroluminescence element has a supporting substrate; and a cathode, a light emitting layer and an adjacent layer provided on the supporting substrate, wherein the adjacent layer is arranged adjacent to the outer side of the cathode (i.e., the side opposite to the light emitting layer), wherein the cathode is a transparent layer containing a metal and having a film thickness of 2 nm or more but less than 10 nm; and wherein the adjacent layer has a refractive index of between 1.6 and 1.95, a film thickness of between 15 nm and 180 nm, and contains no light scattering particle.

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