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:
Mar. 31, 2026
Filed:
May. 19, 2022
Samsung Display Co., Ltd., Yongin-si, KR;
Hyunah Um, Seoul, KR;
Minje Kim, Suwon-si, KR;
Youngjin Park, Suwon-si, KR;
Heechoon Ahn, Seoul, KR;
Juhui Yun, Suwon-si, KR;
Yeseul Lee, Hwaseong-si, KR;
Yirang Im, Daejeon, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A light emitting element according to an embodiment includes a first electrode, a second electrode disposed on the first electrode, an emission layer disposed between the first electrode and the second electrode, and a double buffer layer including a first layer disposed on the emission layer and a second layer disposed on the first layer. The first layer includes a first compound, the second layer includes a second compound which is different from the first compound, and the first compound and the second compound are each independently represented by Formula 1 or Formula 2, thereby contributing to increased efficiency and increased life of a light emitting element.