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. 08, 2025
Filed:
Jun. 09, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Jongwon Lee, Yongin-si, KR;
Namsu Kang, Yongin-si, KR;
Minkyung Kim, Yongin-si, KR;
Minho Park, Yongin-si, KR;
Huiju Park, Yongin-si, KR;
Dongkyu 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; and an interlayer between the first electrode and the second electrode and including an emission layer stack, wherein the emission layer stack includes: a first emission layer including a first host and a first dopant; and a second emission layer including a second host, a second dopant, and an electron transport compound, wherein the first host and the second host are different compounds from each other, the first emission layer is in contact with the second emission layer, and the second emission layer is closer to the second electrode than the first emission layer.