Title:
THERMALLY ACTIVATED DELAYED FLUORESCENCE BLUE LIGHT MATERIAL, SYNTHESIS METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/237901
Kind Code:
A1
Abstract:
The present invention relates to the technical field of organic light-emitting materials, and specifically relates to a thermally activated delayed fluorescence blue light material, a synthesis method therefor and use thereof. The thermally activated delayed fluorescence blue light material has the following general formula(I): The thermally activated delayed fluorescence blue light material provided in the present invention has a novel structure, a lower energy level difference between singlet state and triplet state, a fast reverse intersystem crossing constant (kRISC) and a high photoluminescence quantum yield (PLQY). By fine-tuning the structure of electron acceptor units, the electron acceptor units will have different electron accepting capacities, thereby realizing fine-tuning of the spectrum in the range of deep blue light.
Inventors:
LUO JIAJIA (CN)
HUANG JINCHANG (CN)
YANG LIN (CN)
ZHANG QU (CN)
HUANG JINCHANG (CN)
YANG LIN (CN)
ZHANG QU (CN)
Application Number:
PCT/CN2019/105069
Publication Date:
December 03, 2020
Filing Date:
September 10, 2019
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C07D219/02; C07D401/14; C07D413/14; C07F7/08; C09K11/06; H01L51/50; H01L51/54
Foreign References:
| CN106397318A | 2017-02-15 | |||
| KR20170057729A | 2017-05-25 |
Attorney, Agent or Firm:
ESSEN PATENT & TRADEMARK AGENCY (CN)
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