专利检索 ap:("KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION") AND inv:"Hirokazu Kuwabara" 第 1 页

1.

发明授权
Host material for delayed fluorescent materials, organic light-emitting device and compound 有权

公开(公告)号：US10559757B2

公开(公告)日：2020-02-11

申请号：US15508236

申请日：2015-09-02

申请人： KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

发明人： Hirokazu Kuwabara , Takumi Shibata , Takehiro Takahashi , William John Potscavage, Jr. , Chihaya Adachi

IPC分类号： H01L51/54 , C09K11/06 , H01L51/00 , C07C49/788 , C07C15/38 , C09K11/02 , H01L51/50

摘要： A compound represented by (Tr)n-Z is useful as a host material for delayed fluorescent materials. Tr represents a substituted or unsubstituted triphenylenyl group, and plural Tr's existing in the general formula (1) may be the same as or different from each other. Z represents a carbonyl group or a substituted or unsubstituted, n-valent aromatic hydrocarbon group. n represents an integer of 2 to 6, but when Z is a carbonyl group, n is 2.