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. 09, 2026
Filed:
May. 26, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Minkyung Kim, Yongin-si, KR;
Namsu Kang, Yongin-si, KR;
Minho Park, Yongin-si, KR;
Huiju Park, Yongin-si, KR;
Dongkyu Lee, Yongin-si, KR;
Jongwon Lee, Yongin-si, KR;
Hyunshik Lee, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A light-emitting device includes a first electrode, a second electrode facing the first electrode, a first emission layer between the first electrode and the second electrode, and a second emission layer between the first emission layer and the second electrode. The first emission layer includes a first compound and a second compound, the second emission layer includes a third compound and a fourth compound, the first compound and the second compound are different from each other, and the third compound and the fourth compound are different from each other. The fourth compound includes at least one of an electron transport compound and a bipolar compound. An electronic apparatus including the light-emitting device is also provided.