Invention Grant
- Patent Title: Compound, display panel, and display apparatus
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Application No.: US16833892Application Date: 2020-03-30
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Publication No.: US11437589B2Publication Date: 2022-09-06
- Inventor: Quan Ran , Lei Zhang , Wei Gao , Jinghua Niu , Wenpeng Dai
- Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Xiamen
- Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
- Current Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
- Current Assignee Address: CN Xiamen
- Agency: Kilpatrick Townsend & Stockton, LLP
- Priority: CN202010005739.7 20200103
- Main IPC: B32B9/00
- IPC: B32B9/00 ; H01L51/00 ; H01L51/50

Abstract:
The present disclosure relates provides an compound represented by Chemical Formula 1, in which Ar1, Ar2, Ar3 and Ar4 are C6-C40 aryl, or C5-C40 heteroaryl; R1 and R2 are —C(R)2—, —N(R)—, —O—, or —S—; X1, X2 and X3 are C or N; L1 and L2 are phenylene, naphthylene, or biphenylene; Y1 and Y2 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.
Public/Granted literature
- US20200227655A1 COMPOUND, DISPLAY PANEL, AND DISPLAY APPARATUS Public/Granted day:2020-07-16
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