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.:
Date of Patent:
Sep. 22, 2015
Filed:
Jun. 23, 2011
Jun Yeob Lee, Seongnam-si, KR;
Soon OK Jeon, Seoul, KR;
Hyo Suk Son, Seongnam-si, KR;
Kyoung Soo Yook, Yongin-si, KR;
Sang Eok Jang, Seoul, KR;
Jun Yeob Lee, Seongnam-si, KR;
Soon Ok Jeon, Seoul, KR;
Hyo Suk Son, Seongnam-si, KR;
Kyoung Soo Yook, Yongin-si, KR;
Sang Eok Jang, Seoul, KR;
SK CHEMICALS CO., LTD., Gyeonggido, KR;
Abstract
The present invention relates to a highly efficient carbazole-based compound and to an organic electroluminescence device including the same. According to the present invention, provided are a compound for an organic electroluminescence device and an organic electroluminescence device including the compound, in which a carbazole-based phosphine oxide compound, which is a compound intended for an organic electroluminescence device, is employed to overcome the problems of conventional compounds for organic electroluminescence devices, i.e. those of instable thermal stability and low efficiency, and particularly, the compound of the present invention exhibits superior efficiency in pure-blue phosphorescent devices.