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:
Dec. 09, 2025
Filed:
Mar. 27, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Takayuki Ito, Kanagawa, JP;
Kentaro Ito, Tokyo, JP;
Norifumi Kajimoto, Kanagawa, JP;
Yojiro Matsuda, Kanagawa, JP;
Hiroaki Sano, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present disclosure provides an organic light-emitting element including a first electrode, an organic compound layer, and a second electrode, wherein the organic compound layer includes a charge transport layer, and the charge transport layer includes a first charge transport layer, a second charge transport layer, and a third charge transport layer in this order, and the first charge transport layer, the second charge transport layer, and the third charge transport layer satisfy Formulas (1) and (2) below:μ1>μ2>μ3 (1)1+2<3 (2)