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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 12757570 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Nov. 04, 2022

Organic light emitting diode and organic light emitting display device including the same

Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Jeong-Dae Seo, Paju-si, KR;

Shin-Han Kim, Paju-si, KR;

Min-Surk Hyung, Paju-si, KR;

Kyu-Il Han, Paju-si, KR;

Jin-Ho Park, Paju-si, KR;

Seung-Kwang Roh, Paju-si, KR;

Sun-Kap Kwon, Paju-si, KR;

Assignee:

LG DISPLAY CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Gregory D Clark

Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 471/14 (2006.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 85/60 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 50/16 (2023.02); C07D 471/14 (2013.01); H10K 50/11 (2023.02); H10K 85/654 (2023.02); H10K 2101/40 (2023.02);
Abstract

An organic light emitting diode includes a first emitting part including a first emitting material layer (EML) and a first electron transporting layer (ETL), a second emitting part including a second EML and between the first emitting part and the second electrode, an n-type charge generation layer (CGL) contacting the first ETL and between the first ETL and the second emitting part, and a p-type CGL contacting the n-type CGL and between the n-type CGL and the second emitting part. The first ETL includes a first compound, and the n-type CGL includes a second compound and an n-type dopant. A lowest unoccupied molecular orbital (LUMO) energy level of the first compound can be higher than a LUMO energy level of the second compound.

Find Patent Forward Citations

Seo, Jeong-Dae. (2026). Organic light emitting diode and organic light emitting display device including the same (U.S. Patent No. 12757570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12757570

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