Invention Grant
- Patent Title: Compound, a display panel and a display device
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Application No.: US16922566Application Date: 2020-07-07
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Publication No.: US11691991B2Publication Date: 2023-07-04
- Inventor: Wei Gao , Wenpeng Dai , Lei Zhang , Quan Ran , Jinghua Niu , Xia Li
- Applicant: WUHAN TIANMA MICROELECTRONICS CO., LTD. , WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
- Applicant Address: CN Wuhan
- Assignee: Shanghai Tianma AM-OLED Co., Ltd.
- Current Assignee: Shanghai Tianma AM-OLED Co., Ltd.
- Current Assignee Address: CN Shanghai
- Agency: von Briesen & Roper, s.c.
- Priority: CN 2010246087.6 2020.03.31
- Main IPC: C07F5/02
- IPC: C07F5/02 ; C07F7/08 ; H01L51/00 ; H01L51/50

Abstract:
The present invention relates to a compound, a display panel and a display device. The compound has a structure represented by Formula I. The compound takes a spiro structure as a non-conjugated connecting unit, and a boron-containing group as an electron-accepting group. A light-emitting compound obtained by taking the group as a building block has a narrower half-peak width and higher color purity. The boron-containing spiro structure is connected with an electron-donating group to obtain a bipolar compound, and as a thermal activation delay fluorescence material, the bipolar compound can be used a light-emitting layer material, particularly a doped material, and can also be used as a fluorescent host material or a phosphorescent host material. The compound provided herein can achieve low drive voltages and high luminescence efficiencies when applied to organic electroluminescent devices.
Public/Granted literature
- US20210309675A1 Compound, A Display Panel and A Display Device Public/Granted day:2021-10-07
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