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:
Dec. 13, 2022
Filed:
Apr. 27, 2020
Samsung Display Co., Ltd., Yongin-si, KR;
Hyojeong Kim, Yongin-si, KR;
Minje Kim, Yongin-si, KR;
Eungdo Kim, Yongin-si, KR;
Hyunyoung Kim, Yongin-si, KR;
Hyosup Shin, Yongin-si, KR;
Seokgyu Yoon, Yongin-si, KR;
Youngki Lee, Yongin-si, KR;
Jungsub Lee, Yongin-si, KR;
Jiyoung Lee, Yongin-si, KR;
Hyejin Jung, Yongin-si, KR;
Kunwook Cho, Yongin-si, KR;
Hyeongu Cho, Yongin-si, KR;
Minsoo Choi, Yongin-si, KR;
Youngeun Choi, Yongin-si, KR;
Jaejin Lyu, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic light-emitting device having improved efficiency and lifespan includes: 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, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound includes a metal element having an atomic number of 40 or more, the fourth compound includes boron (B), the third compound and the fourth compound each satisfy Conditions 1-1 and 1-2 below, and the fourth compound satisfies Condition 2 or 3:()()  Condition-()()  Condition-()≥  Condition()≥  Condition