- 专利标题： Organic electroluminescent materials and devices
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申请号： US16044583申请日： 2018-07-25
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公开(公告)号： US11744141B2公开(公告)日： 2023-08-29
- 发明人: Zhiqiang Ji , Alexey Borisovich Dyatkin , Jui-Yi Tsai , Walter Yeager , Edward Barron
- 申请人： UNIVERSAL DISPLAY CORPORATION
- 申请人地址： US NJ Ewing
- 专利权人： UNIVERSAL DISPLAY CORPORATION
- 当前专利权人： UNIVERSAL DISPLAY CORPORATION
- 当前专利权人地址： US NJ Ewing
- 代理机构： Duane Morris LLP
- 主分类号： H10K85/30
- IPC分类号： H10K85/30 ; C07F15/00 ; C09K11/06 ; H10K50/11 ; H10K85/40 ; H10K85/60 ; H10K101/10 ; H10K102/10
摘要：
A compound having the formula [LA]yIr[LB]x is disclosed, where LA is selected from one of the following:
The compounds have at least one pyridyl dibenzo-substituted ligand that coordinates to metal center from the sterically hindered position as exemplified by LA. Because of this unique configuration, the compounds display better photo-physical and thermal properties and can be used in OLED devices to improve their performance, particularly with respect to the device's lifetime.
The compounds have at least one pyridyl dibenzo-substituted ligand that coordinates to metal center from the sterically hindered position as exemplified by LA. Because of this unique configuration, the compounds display better photo-physical and thermal properties and can be used in OLED devices to improve their performance, particularly with respect to the device's lifetime.
公开/授权文献
- US20190051844A1 ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 公开/授权日：2019-02-14
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