logo

For the Inventor, By the Inventor

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 10636981 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Aug. 25, 2014

Material for organic electroluminescent element and organic electroluminescent element using the same

Applicant:

Nippon Steel & Sumikin Chemical Co., Ltd., Tokyo, JP;

Inventors:

Junya Ogawa, Kitakyushu, JP;

Masashi Tada, Kitakyushu, JP;

Tokiko Ueda, Kitakyushu, JP;

Takahiro Kai, Kitakyushu, JP;

Assignee:

NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Tokyo, JP;

Attorney:

Cheng Law Group, PLLC

Primary Examiner:

Eli D Strah

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C09K 11/06 (2006.01); H05B 33/20 (2006.01); C07F 5/05 (2006.01); C09K 11/02 (2006.01); H01L 51/50 (2006.01); C07D 405/14 (2006.01); C07D 307/91 (2006.01); C07D 405/10 (2006.01); C07D 209/86 (2006.01);
U.S. Cl.
CPC ...
H01L 51/008 (2013.01); C07F 5/05 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H01L 51/0058 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0085 (2013.01); H05B 33/20 (2013.01); B32B 2457/206 (2013.01); C07D 209/86 (2013.01); C07D 307/91 (2013.01); C07D 405/10 (2013.01); C07D 405/14 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/185 (2013.01); H01L 51/5016 (2013.01); H01L 51/5096 (2013.01);
Abstract

Provided are a material for an organic EL device that improves the luminous efficacy of a device, sufficiently secures its driving stability, and has a simple construction, and an organic EL device using the material. The material for an organic EL device is formed of a carborane compound having a structure in which a dibenzofuranyl group is bonded to a carborane ring. In addition, the material for an organic EL device is preferably used in a light-emitting layer, an electron-transporting layer, or a hole-blocking layer of an organic electroluminescent device having the light-emitting layer between an anode and a cathode laminated on a substrate. Also disclosed is an organic electroluminescent device using the material for an organic EL device as a host material for a light-emitting layer containing a phosphorescent light-emitting dopant and the host material.

Find Patent Forward Citations

Loading…