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. 29, 2022
Filed:
Feb. 13, 2018
Sharp Kabushiki Kaisha, Sakai, JP;
Tadashi Kobashi, Sakai, JP;
Yoshihiro Ueta, Sakai, JP;
Makoto Izumi, Sakai, JP;
Noboru Iwata, Sakai, JP;
SHARP KABUSHIKI KAISHA, Osaka, JP;
Abstract
The light-emitting device includes, between an anode electrode and a cathode electrode, a light-emitting layer, a hole transport layer, and an electron transport layer. The light-emitting layer includes quantum dots configured to emit light as a result of combination of positive holes and electrons. The electron transport layer includes a metal oxide, and an energy level of a lower end of a conduction band of the metal oxide is less than or equal to an energy level of a lower end of a conduction band of the quantum dots.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile