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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 12016190 B1

PDFFull Text
Date of Patent:
Jun. 18, 2024

Filed:

May. 12, 2021

Electroluminescent device, and display device comprising thereof

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Moon Gyu Han, Suwon-si, KR;

Dae Young Chung, Suwon-si, KR;

Kwanghee Kim, Seoul, KR;

Eun Joo Jang, Suwon-si, KR;

Chan Su Kim, Seoul, KR;

Kun Su Park, Seongnam-si, KR;

Won Sik Yoon, Seoul, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Alia Sabur

Int. Cl.
CPC ...
H10K 50/115 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 71/00 (2023.01); H10K 85/60 (2023.01); H10K 101/00 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/115 (2023.02); H10K 50/15 (2023.02); H10K 50/157 (2023.02); H10K 50/167 (2023.02); H10K 71/00 (2023.02); H10K 85/631 (2023.02); H10K 85/633 (2023.02); H10K 50/16 (2023.02); H10K 2101/00 (2023.02); H10K 2102/331 (2023.02);
Abstract

An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

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