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:
Jul. 09, 2024
Filed:
Jun. 02, 2020
Organic electroluminescence device and organometallic complex for organic electroluminescence device
Samsung Display Co., Ltd., Yongin-si, KR;
Haejin Kim, Hwaseong-si, KR;
Soo-Byung Ko, Yongin-si, KR;
Sungbum Kim, Yongin-si, KR;
Sujin Shin, Daegu, KR;
Eunsoo Ahn, Jinju-si, KR;
Eunyoung Lee, Sejong-si, KR;
Jaesung Lee, Hwaseong-si, KR;
Hyunjung Lee, Pohang-si, KR;
Mina Jeon, Hwaseong-si, KR;
Junghoon Han, Seoul, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
Provided is an organic electroluminescence device. The organic electroluminescence device according to an embodiment includes a first electrode, a second electrode facing the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes an organometallic complex including a metal atom which is a central atom, a plurality of ligand connected to the metal atom, and a nitrogen atom connecting two of the plurality of ligands. The nitrogen atom includes an aromatic ring group as a substituent. The aromatic ring group is not bonded to any of the plurality of ligands to form a ring, thereby allowing the organic electroluminescent device to exhibit a low drive voltage and improved life time.