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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 11744093 B1

PDFFull Text
Date of Patent:
Aug. 29, 2023

Filed:

Apr. 20, 2022

Organic light-emitting diode, organic light-emitting display including the same, and method of manufacturing the same

Applicant:

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

Inventors:

Sangbeom Kim, Paju-si, KR;

Jeongdae Seo, Incheon, KR;

Assignee:

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

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Reema Patel

Int. Cl.
CPC ...
H01L 27/00 (2006.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/19 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01); H10K 101/40 (2023.01); H10K 101/10 (2023.01); H10K 85/60 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 50/11 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/19 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); H10K 85/60 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/6572 (2023.02); H10K 85/6576 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02);
Abstract

An organic light-emitting diode includes: a first electrode, a light-emitting stack thereon including: a hole transport layer (HTL), a blue light-emitting layer including: a blue host material (BHM), and a blue fluorescent dopant (BFD) material, and an electron transport layer (ETL), and a second electrode on the light-emitting stack, wherein BFD LUMO>BHM, BFD HOMO>BHM, BFD singlet energy <BHM, HTL HOMO>BHM and BFD, HTL HOMO−BFD HOMO≤0.1 eV, the HTL material LUMO>the BHM, HTL LUMO−BHM LUMO>0.5 eV, HTL LUMO>BFD, ETL LUMO>BHM and BFD, a difference in LUMO between the ETL material and the BFD material ≤0.1 eV, and the HTL material, the ETL material, and the BHM have the following triplet energy relationships: T<Tand T<T, 2.8<T<3.0, and 2.6<T<2.8.

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