Organic electroluminescent device and compound for organic electroluminescent device
By using nitrogen-containing ring groups and phenanthroline bonded compounds in the electron transport region of the organic electroluminescent device, the problems of high driving voltage, low efficiency and short life in the prior art are solved, and an organic electroluminescent display with low driving voltage, high efficiency and long life are realized.
Patent Information
- Application Number
- CN202110453018.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-05-12
- Filing Date
- 2021-04-26
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2041-04-26
AI Technical Summary
Existing organic electroluminescent displays have shortcomings in terms of driving voltage, light emission efficiency and life, and it is difficult to meet the needs of low driving voltage, high efficiency and long life.
A compound represented by a specific compound is used as the electron transport layer material, which is represented by Formula 1, including a bonding structure containing nitrogen ring groups and phenanthroline or phenanthroline, for constructing an electron transport region of an organic electroluminescent device.
The low driving voltage, high light emission efficiency and long life characteristics of the organic electroluminescent device are realized. By adjusting the structure of the compound, the rate of electron transmission is controlled, thereby improving the overall performance of the device.