专利检索 ap:("SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.") AND inv:"Jianchuan Zhang" 第 1 页

1.

发明授权
Imidazole derivative, material and organic light-emitting device comprising the same 有权

公开(公告)号：US11462694B2

公开(公告)日：2022-10-04

申请号：US16631006

申请日：2018-08-29

申请人： SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.

发明人： Jianhua Cao , Liang Dong , Shibo Wang , Jianchuan Zhang , Yan Sui , Ruimao Hua

IPC分类号： H01L51/00 , C07D471/04 , C07D471/14 , H01L27/32 , H01L51/50 , C09K11/06

摘要： There is provided an imidazole derivative, wherein the structural formula of the imidazole derivative is as represented by formula I: There is further provided a material containing the imidazole derivative and an organic light-emitting device containing the imidazole derivative. The imidazole derivative has an excellent carrier transport capacity, and the organic light-emitting device produced by using the material has obviously reduced starting voltage and improved luminous efficiency and luminance; and due to the features such as relatively good film-forming performance and simple material synthesis and purification methods which are applicable to mass production, the imidazole derivative is an ideal option for an electron transport material of organic light-emitting devices.