公开(公告)号：US09806269B2

公开(公告)日：2017-10-31

申请号：US14954892

申请日：2015-11-30

Applicant: LG Display Co., Ltd

Inventor： Hyo-Jin Noh ,  Kyung-Jin Yoon ,  Dae-Wi Yoon ,  In-Ae Shin ,  Jun-Yun Kim

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32 ,  C07D209/86 ,  C07D495/04 ,  C09K11/02 ,  C09K11/06 ,  H01L51/52

CPC classification number: H01L51/0071 ,  C07D209/86 ,  C07D495/04 ,  C09K11/02 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/1051 ,  C09K2211/1066 ,  C09K2211/1092 ,  H01L27/3244 ,  H01L51/005 ,  H01L51/0072 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5246 ,  H01L2251/5384 ,  H01L2251/552

Abstract: Embodiments relate to a delayed fluorescence compound and a display device including the delayed fluorescence compound. The delayed fluorescence compound includes an electron acceptor moiety of benzo[4,5]thieno[2,3-b]quinoxaline and at least one electron donor moiety covalently bonded to the electron acceptor moiety. The at least one electron donor moiety is covalently bonded to a benzene ring of benzo[4,5]thieno[2,3-b]quinoxaline and is selected from carbazole, phenylcarbazole, acridine, and phenylacridine. The effective charge transfer in the delayed fluorescence compound results in improved emitting efficiency of the compound.