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.:

US 11917844 B1

Date of Patent:

Feb. 27, 2024

Filed:

Oct. 22, 2020

Organic el element, and display apparatus, illumination apparatus, and moving object including the same

Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Itaru Takaya, Kanagawa, JP;

Naoki Yamada, Tokyo, JP;

Takayuki Ito, Kanagawa, JP;

Hirokazu Miyashita, Kanagawa, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A., Inc., IP Division

Primary Examiner:

Christopher M Raabe

Int. Cl.

CPC ...

H10K 50/13 (2023.01); H05B 33/02 (2006.01); H10K 50/11 (2023.01); H10K 101/40 (2023.01);

U.S. Cl.

CPC ...

H10K 50/13 (2023.02); H05B 33/02 (2013.01); H10K 50/11 (2023.02); H10K 2101/40 (2023.02);

Abstract

An organic EL element characterized by including a first electrode, a second electrode, and a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer that are disposed between the first electrode and the second electrode, the first light-emitting layer, the second light-emitting layer, and the third light-emitting layer each containing a host material and a light-emitting material, in which the first light-emitting layer is a light-emitting layer that emits red light and green light, the second light-emitting layer is a light-emitting layer that emits blue light, and the third light-emitting layer is a light-emitting layer that emits green light.

Find Patent Forward Citations