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:
Feb. 28, 2012
Filed:
Dec. 05, 2008
SO Ha Lee, Seoul, KR;
Jae Chun Ryu, Seoul, KR;
Kyung Ho Yoo, Seoul, KR;
Ibrahim Mustafa El-deeb, Seoul, KR;
So Ha Lee, Seoul, KR;
Jae Chun Ryu, Seoul, KR;
Kyung Ho Yoo, Seoul, KR;
Ibrahim Mustafa El-Deeb, Seoul, KR;
Korea Institute of Science & Technology, Seoul, KR;
Abstract
The present invention relates to diphenyl amine derivatives having luminescent properties, and particularly to diphenyl amines substituted with various electron-donating or electron-withdrawing groups. The compounds of the present invention show blue or blue-green luminescence, and luminescence of the compounds herein can be achieved by UV or visible light, thus being useful as a fluorescent dye or fluorescent material for an organic electroluminescence device or display.