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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 11744096 B1

PDFFull Text
Date of Patent:
Aug. 29, 2023

Filed:

Feb. 15, 2022

Light emitting device and display device including 1he same

Applicant:

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

Inventors:

Dae Young Chung, Suwon-si, KR;

Kwanghee Kim, Seoul, KR;

Eun Joo Jang, Suwon-si, KR;

Tae Hyung Kim, Seoul, KR;

Hongkyu Seo, Anyang-si, KR;

Heejae Lee, Seoul, KR;

Jaejun Chang, Gwacheon-si, KR;

Assignee:

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

Attorney:

Cantor Colburn LLP

Primary Examiner:

Anthony Ho

Int. Cl.
CPC ...
H01L 51/50 (2006.01); H10K 50/115 (2023.01); H10K 50/13 (2023.01); H10K 71/00 (2023.01); H10K 71/15 (2023.01); H10K 71/40 (2023.01); H10K 101/30 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/115 (2023.02); H10K 50/13 (2023.02); H10K 71/00 (2023.02); H10K 71/15 (2023.02); H10K 71/441 (2023.02); H10K 2101/30 (2023.02); H10K 2102/351 (2023.02);
Abstract

A light emitting device including a first electrode and a second electrode, and an emission layer disposed between the first electrode and the second electrode and including quantum dots, a first charge auxiliary layer disposed between the emission layer and the first electrode, and a second charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer comprises a first emission layer contacting the first charge auxiliary layer, a second emission layer disposed on the first emission layer, and a third emission layer disposed on the second emission layer. The hole mobility of the first emission layer decreases sequentially from the first emission layer to the third emission layer.

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