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:
Nov. 03, 2020
Filed:
Oct. 16, 2015
Samsung Display Co., Ltd., Yongin-si, KR;
Naoyuki Ito, Yongin-si, KR;
Myeong-Suk Kim, Yongin-si, KR;
Youn-Sun Kim, Yongin-si, KR;
Sung-Wook Kim, Yongin-si, KR;
Hwan-Hee Cho, Yongin-si, KR;
Chang-Woong Chu, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7:Ar(L)-(R)]  Formula 1Ar(L)-(R)]  Formula 2M(L)(L).  Formula 7 The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.