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:
Sep. 17, 2024
Filed:
Feb. 25, 2021
Flask Corporation, Yonezawa, JP;
Hisahiro Sasabe, Yonezawa, JP;
Junji Kido, Yonezawa, JP;
Tomohiro Maruyama, Yonezawa, JP;
Tsukasa Owada, Yonezawa, JP;
Tomoya Kawano, Yonezawa, JP;
Yu Saito, Yonezawa, JP;
FLASK CORPORATION, Yonezawa, JP;
Abstract
Provided are a compound having the nitrogen-containing six-membered aromatic ring structure with high electron transport characteristic and high thermal stability, thereof electron transport material, and an OLED using the same. That is to say, a compound having the nitrogen-containing six-membered aromatic ring structure substituted by at least three nitrogen-containing six-membered aromatic groups, and an OLED material and an electron transport material comprising the compound having the nitrogen-containing six-membered aromatic ring structure. An OLED having a pair of anode and cathode and at least one organic layer including a light-emitting layer between the pair of the electrodes, wherein any of the organic layers comprises the compound having the nitrogen-containing six-membered aromatic ring structure. The compound having the nitrogen-containing six-membered aromatic ring structure according to this invention excellent in electron transport characteristic and thermal stability is suitable for an OLED material, especially an electron transport material.