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. 01, 2015
Filed:
May. 09, 2012
Sam-il Kho, Yongin, KR;
Mie-hwa Park, Yongin, KR;
Hyoung-kun Kim, Yongin, KR;
Yoon-hyun Kwak, Yongin, KR;
Ja-hyun Lim, Yongin, KR;
Chang-woong Chu, Yongin, KR;
Kwan-hee Lee, Yongin, KR;
Sam-Il Kho, Yongin, KR;
Mie-Hwa Park, Yongin, KR;
Hyoung-Kun Kim, Yongin, KR;
Yoon-Hyun Kwak, Yongin, KR;
Ja-Hyun Lim, Yongin, KR;
Chang-Woong Chu, Yongin, KR;
Kwan-Hee Lee, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light-emitting diode includes a first electrode; a second electrode facing the first electrode; an emission layer (EML) between the first electrode and the second electrode; a first charge generation layer between the EML and the first electrode and including a first compound and a first charge generation material; a first layer between the EML and the first charge generation layer and including a second compound; a second charge generation layer between the EML and the first layer and including a third compound and a second charge generation material; a second layer between the EML and the second charge generation layer and including a fourth compound; and a buffer layer between the EML and the second layer. The first and third compounds each independently includes a compound represented by Formula 1, and the second and fourth compounds each independently includes a compound represented by Formula 2.