一种发光辅助材料及其制备方法和应用
By using 9-alkyl-9-phenylfluorene as the core light-emitting auxiliary material in OLED display devices to connect aryl and aromatic amine groups, the carrier migration problem between the hole transport layer and the light-emitting layer is solved, improving the device's lifetime and efficiency while reducing the driving voltage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JILIN OPTICAL & ELECTRONICS MATERIALS CO LTD
- Filing Date
- 2026-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing OLED display devices, the localization of carrier migration between the hole transport layer and the light-emitting layer leads to a high hole transport barrier and a low migration rate, which affects the color purity, efficiency, and lifespan of the device.
A luminescent auxiliary material using 9-alkyl-9-phenylfluorene as the parent core is used to adjust the HOMO and LUMO energy levels by connecting aryl and aromatic amine groups on both sides, thereby reducing the hole injection energy barrier, improving the hole transport rate and luminescence efficiency, and extending the conjugated system to avoid excessive molecular aggregation.
It effectively improves the lifespan and luminous efficiency of OLED devices, while reducing the driving voltage and improving the stability and luminous efficiency of the compound.
Smart Images
Figure CN121895173B_ABST