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:
May. 12, 2026
Filed:
Aug. 31, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
Oul Cho, Suwon-si, KR;
Kwanghee Kim, Suwon-si, KR;
Yuho Won, Suwon-si, KR;
Jae Yong Lee, Suwon-si, KR;
Taehyung Kim, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
Abstract
An electroluminescent device includes a quantum dot layer disposed between a first electrode and a second electrode, and an electron transport layer disposed between the quantum dot layer and the second electrode; wherein the quantum dot layer is configured to emit a first light, the quantum dot layer including first quantum dots, wherein the first quantum dots include a first semiconductor nanocrystal, wherein the electron transport layer includes zinc oxide nanoparticles, wherein the electroluminescent device further comprises a first layer between the quantum dot layer and the electron transport layer, the first layer including inorganic nanoparticles, wherein the inorganic nanoparticles has a different composition from the zinc oxide nanoparticles and the first quantum dots, and wherein the inorganic nanoparticles comprises a metal chalcogenide having a bandgap energy of greater than or equal to about 2.9 electron volts (eV) and less than or equal to about 10 eV.