公开(公告)号：US20220216421A1

公开(公告)日：2022-07-07

申请号：US17692444

申请日：2022-03-11

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Chuanjun XIA ,  Raymong KWONG ,  Ken-Tsung Wong ,  Ming-Cheng KUO

IPC: H01L51/00 ,  C07D401/14 ,  C07D403/14 ,  C07D405/14 ,  C07D409/14

Abstract: Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3′-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime.