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. 14, 2026
Filed:
Sep. 18, 2020
Applicant:
Sharp Kabushiki Kaisha, Sakai City, JP;
Inventors:
Yoshihiro Ueta, Sakai City, JP;
Keisuke Kitano, Sakai City, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai City, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 50/115 (2023.01); H10K 59/122 (2023.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
H10K 50/115 (2023.02); H10K 59/122 (2023.02); H10K 59/878 (2023.02);
Abstract
A light-emitting device includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and a hole transport layer disposed between the first electrode and the light-emitting layer, wherein the light-emitting layer includes a first quantum dot including a first core with an emission peak in a visible light region, and a second quantum dot including a second core with an emission peak in a near-ultraviolet region or an ultraviolet region.