申请人:Xiamen Tianma Micro-Electronics Co., Ltd.
公开号:US20200227655A1
公开(公告)日:2020-07-16
The present disclosure relates provides an compound represented by Chemical Formula 1, in which Ar
1
, Ar
2
, Ar
3
and Ar
4
are C6-C40 aryl, or C5-C40 heteroaryl; R
1
and R
2
are —C(R)
2
—, —N(R)—, —O—, or —S—; X
1
, X
2
and X
3
are C or N; L
1
and L
2
are phenylene, naphthylene, or biphenylene; Y
1
and Y
2
are each an electron-withdrawing group selected from a N-containing heterocyclic group, or a cyano-containing group. The compound of the present disclosure has bipolar characteristics of simultaneously transmitting holes and electrons. The bipolar transmission host is beneficial to charge transmission balance in the light-emitting layer, and can widen the exciton recombination region, to simplify the device structure and improving device efficiency. The present disclosure further provides a display panel and a display apparatus.