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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 9278986 B1

PDFFull Text
Expired
Date of Patent:
Mar. 08, 2016

Filed:

Nov. 16, 2009

Carbazole-based phosphine oxide compound, and organic electroluminescent device including the same

Applicants:

Jun-yeob Lee, Seongnam-si, KR;

Soon-ok Jeon, Seoul, KR;

Kyoung-soo Yook, Yongin-si, KR;

Oh-young Kim, Yongin-si, KR;

Inventors:

Jun-Yeob Lee, Seongnam-si, KR;

Soon-Ok Jeon, Seoul, KR;

Kyoung-Soo Yook, Yongin-si, KR;

Oh-Young Kim, Yongin-si, KR;

Assignee:

SK CHEMICALS CO., LTD., Seongnam-si, Gyeonggido, KR;

Attorney:

Lucas & Mercanti, LLP

Primary Examiner:

J L Yang

Int. Cl.
CPC ...
H01L 51/54 (2006.01); C07F 9/60 (2006.01); C07F 9/572 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C07F 9/5728 (2013.01); C09K 11/06 (2013.01); H01L 51/0072 (2013.01); H05B 33/14 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1022 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1088 (2013.01); H01L 51/0081 (2013.01); H01L 51/0085 (2013.01); H01L 51/0094 (2013.01); H01L 51/5016 (2013.01);
Abstract

The present invention relates to a carbazole-based phosphine oxide compound, and an organic electroluminescent device including the same. According to the present invention, provided are a compound for an organic electroluminescent device which can improve the thermal stability and efficiency characteristics which are unstable and low, respectively, corresponding to problems of known compounds for organic electroluminescent devices, and particularly, can implement excellent efficiency characteristics in a pure blue phosphorescent device, by using the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device, and the organic electroluminescent device. According to one aspect of the present invention, the carbazole-based phosphine oxide compound of the compound for the organic electroluminescent device is provided, and the organic electroluminescent device containing the same which can implement thermal stability and high efficiency characteristics is also provided.

Find Patent Forward Citations

Lee, Jun-Yeob. (2016). Carbazole-based phosphine oxide compound, and organic electroluminescent device including the same (U.S. Patent No. 9278986). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9278986

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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