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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 9812654 B1

PDFFull Text
Date of Patent:
Nov. 07, 2017

Filed:

Jun. 17, 2015

Phosphorescent materials for organic electroluminescent devices

Applicant:

E-ray Optoelectronics Technology Co., Ltd., Chung-Li, Taiwan, TW;

Inventors:

Banumathy Balaganesan, Chung-Li, TW;

Heh-Lung Huang, Chung-Li, TW;

Huang-Ming Guo, Chung-Li, TW;

Po-Wei Hsu, Chung-Li, TW;

Assignee:

E-RAY OPTOELECTRONICS TECHNOLOGY CO., LTD., Chung-Li, TW;

Attorney:

Amin, Turocy & Watson LLP

Primary Examiner:

Gregory Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01); C07D 487/04 (2006.01); C09K 11/06 (2006.01); C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0074 (2013.01); C07D 471/04 (2013.01); C07D 487/04 (2013.01); C09K 11/06 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); C09K 2211/185 (2013.01); H01L 51/0085 (2013.01); H01L 51/5016 (2013.01); H01L 2251/5384 (2013.01);
Abstract

The present invention provides a high triplet energy compound of Formula 1 for an organic electroluminescent device: In Formula 1, X represents an oxygen or a sulfur atom, and represents a substituted or unsubstituted hetero-aromatic ring containing at least two nitrogens or an alkyl group with C2 to C6. The organic electroluminescent device including the compound used in an emissive layer or an electron transporting layer enhances the efficiency and the stability of the device.

Find Patent Forward Citations

Balaganesan, Banumathy. (2017). Phosphorescent materials for organic electroluminescent devices (U.S. Patent No. 9812654). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9812654

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