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. 17, 2026
Filed:
Oct. 17, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kwanghee Kim, Suwon-si, KR;
Taehyung Kim, Suwon-si, KR;
Hong Kyu Seo, Suwon-si, KR;
Wonsik Yoon, Suwon-si, KR;
Eun Joo Jang, Suwon-si, KR;
SAMSUNG DISPLAY CO., LTD., Gyeonggi-do, KR;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do, KR;
Abstract
An electroluminescent device including a first electrode; a second electrode; a light emitting layer disposed between the first electrode and the second electrode; and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the light emitting layer includes semiconductor nanoparticles, wherein the electron transport layer includes a plurality of metal oxide nanoparticles, and wherein the electron transport layer further includes a polycarboxylic acid compound and a halogen.