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:
Jun. 05, 2018
Filed:
May. 22, 2015
Applicant:
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Inventors:
Sung-Soo Bae, Seoul, KR;
Mikyung Kim, Suwon-si, KR;
Donghyun Kim, Gwangju-si, KR;
Tsuyoshi Naijo, Suwon-si, KR;
Assignee:
Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0058 (2013.01); H01L 51/006 (2013.01); H01L 51/0072 (2013.01); H01L 51/5072 (2013.01);
Abstract
An organic light emitting device including a first electrode, a hole transport region on the first electrode, a light emission layer on the hole transport region, a buffer layer on the light emission layer, an electron transport region on the buffer layer, and a second electrode on the electron transport region. The buffer layer includes at least one selected from the group consisting of a carbazole derivative, a phenanthroline derivative, a triazole derivative, and a quinolinolato-based metal complex.