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. 29, 2024
Filed:
Apr. 05, 2019
Samsung Display Co., Ltd., Yongin-si, KR;
Mun-ki Sim, Seoul, KR;
Junha Park, Gwacheon-si, KR;
Jangyeol Baek, Yongin-si, KR;
Hyoyoung Lee, Suwon-si, KR;
Soo-byung Ko, Yongin-si, KR;
Youngkook Kim, Suwon-si, KR;
Seokhwan Hwang, Suwon-si, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An organic electroluminescence device includes a first electrode, a hole transport region provided on the first electrode, an emission layer provided on the hole transport region, an electron transport region provided on the emission layer, and a second electrode provided on the electron transport region. The emission layer includes a nitrogen-containing compound. The nitrogen-containing compound includes a triazine moiety and a carbazole moiety. In the carbazole moiety, at least one position among 2, 3 and 7 is substituted; each of positions 2 and 7 is substituted or unsubstituted with a substituted or unsubstituted phenyl group, or a substituted or unsubstituted carbazole group; and position 3 is substituted or unsubstituted with a substituted or unsubstituted phenyl group.