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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 12310210 B1

PDFFull Text
Date of Patent:
May. 20, 2025

Filed:

Nov. 19, 2021

Oled light-emitting device, display device, electronic device, and method of manufacturing oled light-emitting device

Applicant:

Wuhan Tianma Micro-electronics Co., Ltd., Wuhan, CN;

Inventors:

Keita Hamada, Kanagawa, JP;

Shigeru Mori, Kanagawa, JP;

Assignee:

Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan, CN;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Victoria K Hall

Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/19 (2023.01); H10K 59/122 (2023.01); H10K 59/32 (2023.01); H10K 59/35 (2023.01); H10K 71/00 (2023.01);
U.S. Cl.
CPC ...
H10K 59/32 (2023.02); H10K 50/13 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/19 (2023.02); H10K 59/122 (2023.02); H10K 59/35 (2023.02); H10K 71/00 (2023.02);
Abstract

A first stack-structured light-emitting element includes light-emitting units and a first charge generation layer between the light-emitting units. A second stack-structured light-emitting element includes light-emitting units and a second charge generation layer between the light-emitting units. Each of the first and second charge generation layers consists of one or more charge generation component layers. A first end region of the first charge generation layer and a second end region of the second charge generation layer overlap above the top face of the element separation layer. In the overlap region, an end region of a component layer of the first or second stack-structured light-emitting element configured to block charges of either polarity is interposed between charge generation component layers of the first and second charge generation layers configured to generate charges of the same polarity as the charges to be blocked by the component layer.

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