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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 12543428 B1

PDFFull Text
Date of Patent:
Feb. 03, 2026

Filed:

Jun. 07, 2022

Light emitting element

Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Namsu Kang, Seoul, KR;

Huiju Park, Seoul, KR;

Songeun Lee, Hwaseong-si, KR;

Hyunshik Lee, Seoul, KR;

Assignee:

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

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Robert S Loewe

Int. Cl.
CPC ...
H10K 50/13 (2023.01); C07C 15/38 (2006.01); C07C 43/235 (2006.01); C07C 211/54 (2006.01); C07C 321/30 (2006.01); C07D 209/82 (2006.01); C07D 231/56 (2006.01); C07D 241/42 (2006.01); C07D 307/91 (2006.01); C07D 333/76 (2006.01); C07D 401/14 (2006.01); C07D 403/04 (2006.01); C07D 403/10 (2006.01); C07D 413/14 (2006.01); C07D 471/04 (2006.01); C07D 491/147 (2006.01); C07D 519/00 (2006.01); C07F 9/53 (2006.01); H10K 50/12 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/12 (2023.02); C07C 15/38 (2013.01); C07C 43/235 (2013.01); C07C 211/54 (2013.01); C07C 321/30 (2013.01); C07D 209/82 (2013.01); C07D 231/56 (2013.01); C07D 241/42 (2013.01); C07D 307/91 (2013.01); C07D 333/76 (2013.01); C07D 401/14 (2013.01); C07D 403/04 (2013.01); C07D 403/10 (2013.01); C07D 413/14 (2013.01); C07D 471/04 (2013.01); C07D 491/147 (2013.01); C07D 519/00 (2013.01); C07F 9/5304 (2013.01); C07F 9/5308 (2013.01); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/631 (2023.02); H10K 85/649 (2023.02); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C07B 2200/05 (2013.01); H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/40 (2023.02);
Abstract

A light emitting element includes a first electrode, a second electrode disposed on the first electrode, and an emission part disposed between the first electrode and the second electrode and including a first emission layer and a second emission layer disposed on the first emission layer, the first emission layer may include a first host, and a first dopant, and the second emission layer may include a hole transport host different from the first host, an electron transport host, and a second dopant. A first hole mobility of the first host may be in a range of about 5.0×10cm/Vs to about 1.0×10cm/Vs, a second hole mobility of a host mixture including the hole transport host and the electron transport host may be in a range of about 1.0×10cm/Vs to about 1.0×10cm/Vs, and the first hole mobility may be larger than the second hole mobility.

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