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:
Oct. 14, 2025
Filed:
Apr. 22, 2021
Rohm and Haas Electronic Materials Korea Ltd., Chungcheongnam-do, KR;
Dong-Hyung Lee, Gyeonggi-do, KR;
Chi-Sik Kim, Gyeonggi-do, KR;
Soo-Yong Lee, Gyeonggi-do, KR;
Seung-Hoon Yoo, Gyeonggi-do, KR;
Yoo-Jin Doh, Gyeonggi-do, KR;
Abstract
The present disclosure relates to an organic electroluminescent device comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises a light-emitting layer and a hole transport zone. By comprising a deuterated compound in at least one of the light-emitting layer and the hole transport zone, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency, and/or lifetime properties.