Title:
LIGHT-EMITTING DEVICE, DISPLAY PANEL, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/238975
Kind Code:
A1
Abstract:
A light-emitting device, comprising: a first electrode and a second electrode arranged in a stacked manner, and a light-emitting layer arranged between the first electrode and the second electrode. The light-emitting layer comprises a thermally activated delayed TADF fluorescent material, and the TADF material comprises a donor, an acceptor, and a linking group linked between the donor and the acceptor. The donor comprises a donor base unit, and a substituent attached to the donor base unit, wherein the various atoms in the donor base unit are located in a first plane. The receptor comprises a receptor base unit, and a substituent attached to the receptor base unit, wherein the various atoms in the receptor base unit are located in a second plane. The linking group comprises a linking base unit, and a substituent attached to the connected base unit, wherein the various atoms in the linking base unit are located in a third plane.
Inventors:
GAO RONGRONG (CN)
MA KUN (CN)
MA KUN (CN)
Application Number:
PCT/CN2021/096029
Publication Date:
December 02, 2021
Filing Date:
May 26, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
C07D403/10; C09K11/06; H01L27/32; H01L51/50; H01L51/54
Foreign References:
| CN111592527A | 2020-08-28 | |||
| CN110407829A | 2019-11-05 | |||
| CN109585664A | 2019-04-05 |
Other References:
HUANG WENLIANG, EINZINGER MARKUS, MAURANO ANDREA, ZHU TIANYU, TIEPELT JAN, YU CHAO, CHAE HYUN SIK, VOORHIS TROY VAN, BALDO MARC A,: "Large Increase in External Quantum Efficiency by Dihedral Angle Tuning in a Sky- Blue Thermally Activated Delayed Fluorescence Emitter", ADVANCED OPTICAL MATERIALS, vol. 7, 17 July 2019 (2019-07-17), XP055872242
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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