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.:
Date of Patent:
Jan. 02, 2024
Filed:
Sep. 20, 2019
Lg Chem, Ltd., Seoul, KR;
Sang Duk Suh, Daejeon, KR;
Jae Seung Ha, Daejeon, KR;
Dong Hoon Lee, Daejeon, KR;
Minseung Chun, Daejeon, KR;
Ji Young Choi, Daejeon, KR;
Woochul Lee, Daejeon, KR;
Joo Ho Kim, Daejeon, KR;
Hoon Jun Kim, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
An organic light emitting device including a first electrode, a second electrode provided opposite to the first electrode, and an organic material layer provided between the first electrode and the second electrode, wherein the organic material layer includes a hole transfer layer and an electron blocking layer, and the hole transfer layer and the electron blocking layer include a compound of Chemical Formula 1, the materials of the hole transfer layer and the electron blocking layer are different from each other, and one or more layers that are not the hole transfer layer and the electron blocking layer of the organic material layer include a compound of Chemical Formula 2.