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. 20, 2022
Filed:
Oct. 16, 2017
Novaled Gmbh, Dresden, DE;
Samsung Sdi Co. Ltd., Gyeonggi-do, KR;
Domagoj Pavicic, Dresden, DE;
Jerome Ganier, Dresden, DE;
Vygintas Jankus, Dresden, DE;
Hyungsun Kim, Suwon-si, KR;
Byungku Kim, Suwon-si, KR;
Youngkwon Kim, Suwon-si, KR;
Younhwan Kim, Suwon-si, KR;
Hun Kim, Suwon-si, KR;
Eun Sun Yu, Suwon-si, KR;
Sung-Hyun Jung, Suwon-si, KR;
Novaled GmbH, Dresden, DE;
Samsung SDI Co. Ltd., Gyeonggi-do, KR;
Abstract
The present invention relates to an organic electroluminescent device, particularly to an organic light emitting diode (OLED) including an ETL stack of at least two electron transport layers, wherein the first electron transport layer comprises a first electron transport matrix compound and the second electron transport layer comprises second electron transport matrix compound and a redox n-dopant, and a device comprising the OLED.