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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 12733396 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Nov. 06, 2019

Organic light-emitting device

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Jae Seung Ha, Daejeon, KR;

Seong So Kim, Daejeon, KR;

Minseung Chun, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Bryan Cave Leighton Paisner LLP

Primary Examiner:

Braelyn R Watson

Int. Cl.
CPC ...
H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 50/12 (2023.01); H10K 50/18 (2023.01); H10K 101/00 (2023.01); H10K 101/40 (2023.01);
U.S. Cl.
CPC ...
H10K 85/633 (2023.02); H10K 85/622 (2023.02); H10K 85/624 (2023.02); H10K 85/626 (2023.02); H10K 85/636 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); H10K 50/11 (2023.02); H10K 50/12 (2023.02); H10K 50/18 (2023.02); H10K 50/181 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02);
Abstract

Provided is an organic light-emitting device including: an anode; a cathode facing the anode; a light-emitting layer between the anode and the cathode; a first organic material layer between the anode and the light-emitting layer; and a second organic material layer between the cathode and the light emitting layer, in which each organic material, from among organic materials included in the light-emitting layer and the organic material layers except for a dopant compound, has a band gap energy (E) of 3 eV or more, the first organic material layer comprises one or more compounds each composed of centrally sp3 carbon, the second organic material layer includes one or more compounds each composed of centrally sp3 carbon, and the first organic material layer and the second organic material layer include three or more compounds each composed of centrally sp3 carbon.

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