申请人:Universal Display Corporation
公开号:US20180212163A1
公开(公告)日:2018-07-26
A ligand for metal complexes are disclosed, in which an imidazole ring is fused to an aromatic ring as a substituent or an imidazole ring is fused to a six-member ring of the original ligand. The features of these elements within the ligand afford a better device performance in general OLED device.