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:
Jan. 10, 2023
Filed:
Jun. 03, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Junri Ishikura, Tokyo, JP;
Norihiko Ochi, Kawasaki, JP;
Naoari Shibata, Kawaguchi, JP;
Masayuki Morohashi, Kawasaki, JP;
Shigeki Sasaki, Hiratsuka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A top emission organic EL element includes a substrate, an insulating layer including a hole portion, a lower electrode, a light emitting layer, a bank surrounding the lower electrode and the light emitting layer, and an upper transparent electrode. The insulating layer, the lower electrode, the light emitting layer, the bank, and the upper transparent electrode are disposed above the substrate. The bank is arranged on the insulating layer so as to surround the hole portion. The lower electrode is configured to cover an inner side of the hole portion and an area, where the bank is not arranged, of an upper surface of the insulating layer, and a thickness at a center area of the lower electrode is 150 nm or more.