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. 02, 2018
Filed:
Jul. 28, 2017
Seoul National University R&db Foundation, Seoul, KR;
Jang-Joo Kim, Seoul, KR;
Jin-Won Sun, Seoul, KR;
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, Seoul, KR;
Abstract
An organic light-emitting device is provided, including: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer; the emission layer includes a first compound, a second compound, a third compound, and a fourth compound; and a lowest excited triplet energy level (H) of the first compound, a lowest excited triplet energy level (DFD) of the third compound, and a lowest excited triplet energy level (FD) of the fourth compound satisfy Inequation 1:.  <Inequation 1>