Title:
HOLE TRANSPORT MATERIAL, PREPARATION METHOD THEREFOR AND ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/120945
Kind Code:
A1
Abstract:
A hole transport material, a preparation method therefor and an electroluminescent device. The main chain of the molecular structure of the hole transport material has a spiroanthracene fluorene structure, and the branched structure of the molecular structure has an aryl or heteroaryl structure. The hole transport material provided can effectively improve the hole injection and transmission performance of organic materials, thereby improving the electron and hole balance of the electroluminescent device, and achieving a lower voltage and a higher efficiency.
Inventors:
WANG YANJIE (CN)
LUO JIAJIA (CN)
BAI KEYAN (CN)
LUO JIAJIA (CN)
BAI KEYAN (CN)
Application Number:
PCT/CN2020/138351
Publication Date:
June 16, 2022
Filing Date:
December 22, 2020
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
C07C211/61; C07C209/10; C07D265/38; C07D307/91; H01L51/54
Domestic Patent References:
| WO2020166875A1 | 2020-08-20 |
Foreign References:
| CN110785401A | 2020-02-11 | |||
| KR20190103790A | 2019-09-05 | |||
| CN109574925A | 2019-04-05 | |||
| CN109912578A | 2019-06-21 | |||
| CN111057005A | 2020-04-24 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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