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:
Oct. 08, 2024
Filed:
Dec. 16, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Yuuki Miyazaki, Fukuoka, JP;
Ryuhei Furue, Fukuoka, JP;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic electroluminescence device of an embodiment of the present disclosure includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the emission layer may include a nitrogen-containing compound represented by Formula 1, thereby exhibiting a long service life. In Formula 1, at least one of Ato Ais represented by Formula 2, and at least another one of Ato Ais represented by Formula 3: