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:
May. 09, 2023
Filed:
Apr. 25, 2018
Kwansei Gakuin Educational Foundation, Nishinomiya, JP;
SK Materials Jnc Co., Ltd., Gyeonggi-do, KR;
Takuji Hatakeyama, Hyogo, JP;
Katsuya Masuda, Chiba, JP;
Yuko Yamaga, Chiba, JP;
Motoki Yanai, Chiba, JP;
Kwansei Gakuin Educational Foundation, Hyogo, JP;
SK Materials JNC Co., Ltd., Gyeonggi-do, KR;
Abstract
The present invention relates to a light emitting layer material comprising: a polycyclic aromatic compound (1) in which a plurality of aromatic rings are linked by a boron atom and a oxygen atom or a nitrogen atom; and a specific anthracene-based compound (3) that achieves optimum light-emission characteristics in combination with said polycyclic aromatic compound. With this light emitting layer material having optimum light emitting characteristics, it is possible to provide an excellent organic EL element. Ring A to ring C are an aryl ring or the like, Yis B (boron), Xand Xare —O— or >N—R (provided that at least one is —O—), X is a group represented by formula (3-X1), (3-X2), or (3-X3), Y is —O—, —S— or >N—R, Ris a hydrogen atom or an optionally substituted aryl, Arto Arare phenyl, a group represented by formula (4), or the like, and both Arand Ardo not simultaneously represent a phenyl.