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:
Dec. 28, 2010
Filed:
Jun. 18, 2007
Yi-yeol Lyu, Yongin-si, KR;
Che-un Yang, Yongin-si, KR;
Young-hun Byun, Yongin-si, KR;
O-hyun Kwon, Seoul, KR;
Yi-yeol Lyu, Yongin-si, KR;
Che-un Yang, Yongin-si, KR;
Young-hun Byun, Yongin-si, KR;
O-hyun Kwon, Seoul, KR;
Abstract
Provided herein are fluorene-based compounds including a fluorene or a spirofluorene structure at both terminals and a spacer including one or more atoms between the both terminals. The invention further provides an organo-electroluminescent device having an organic layer in which the fluorene-based compound is introduced. The fluorene-based compound can be readily manufactured using dry and wet processes, and the organo-electroluminescent device using the same has excellent properties in color purity, internal and external efficiency, and thermal, optical and electric stability.