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:
Nov. 25, 2025
Filed:
Nov. 18, 2022
Samsung Display Co., Ltd., Yongin-si, KR;
Namsu Kang, Yongin-si, KR;
Heungsu Park, Yongin-si, KR;
Wonsuk Han, Yongin-si, KR;
Huiju Park, 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, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer, a third layer between the emission layer and the second electrode, a first layer between the third layer and the second electrode, and a second layer between the first layer and the third layer. The first layer includes a first metal-free material and a first metal-containing material, the second layer includes a second metal-free material and a second metal-containing material, the first metal-free material and the second metal-free material are different from each other, the first metal-containing material and the second metal-containing material are different from each other, and the third layer consists of a third metal-free material. Embodiments include an electronic apparatus including the light-emitting device.