公开(公告)号：US20240251665A1

公开(公告)日：2024-07-25

申请号：US18285084

申请日：2022-03-31

Applicant: TOSOH CORPORATION

Inventor： Masaya HIRANO ,  Naoki MATSUMOTO ,  Hirokazu SHINYA ,  Shintaro NOMURA ,  Hiroyuki KAWASHIMA ,  Kenji KOIKE

IPC: H10K85/60 ,  C07D209/88 ,  C07D405/04 ,  C07D405/10 ,  C07D405/12 ,  C07D405/14 ,  C07D409/04 ,  C07D409/10 ,  C07D409/12 ,  C07D409/14 ,  C09K11/06 ,  H10K50/15 ,  H10K50/17 ,  H10K85/40

CPC classification number: H10K85/636 ,  C07D209/88 ,  C07D405/04 ,  C07D405/10 ,  C07D405/12 ,  C07D405/14 ,  C07D409/04 ,  C07D409/10 ,  C07D409/12 ,  C07D409/14 ,  C09K11/06 ,  H10K85/40 ,  H10K85/633 ,  C09K2211/1018 ,  H10K50/15 ,  H10K50/17 ,  H10K85/615 ,  H10K85/622 ,  H10K85/624 ,  H10K85/626 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576

Abstract: There is provided a transverse current suppressing material that suppresses a transverse current of an organic electroluminescent element, a carbazole compound, a hole-injection layer containing the transverse current suppressing material and the carbazole compound and an organic electroluminescent element that has good drive voltage, luminous efficiency and durability and has a lower transverse current. A transverse current suppressing material for an organic electroluminescent element, represented by the formula (1) [In the formula (1), A is represented by the formula (2) or (3), and B is represented by the formula (4)].