Organic compound, mixture, composition, organic light-emitting device and display panel
By using an organic compound combining anthracene and benzo[a]phenanthrene-furan fused ring groups as the main material for blue light, the efficiency and lifespan issues of blue OLED materials were solved, achieving efficient energy transfer and improved stability.
CN121108084APending Publication Date: 2025-12-12GUANGZHOU CHINARAY OPTOELECTRONICS MATERIALS LTD
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Patent Information
- Application Number
- CN202511215110.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-27
- Publication Date
- 2025-12-12
AI Technical Summary
Technical Problem
Existing blue OLED materials suffer from low glass transition temperature, severe intermolecular π-π stacking, energy level mismatch, and insufficient carrier mobility, resulting in low efficiency and insufficient lifetime.
Method used
An organic compound consisting of two fused-ring groups, anthracene and benzo[a]phenanthrene-furan, is used as the host material for blue light emission. Through the triplet-triplet annihilation (TTA) effect and electron transport, the energy transfer efficiency is improved and the carrier accumulation is reduced.
Benefits of technology
It improves the stability and lifespan of organic light-emitting devices, reduces the driving voltage, and increases the efficiency of the devices.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses an organic compound, a mixture, a composition, an organic light-emitting device and a display panel. Ar2 is selected from a structure represented by a formula (2). The organic compound provided by the invention is formed by combining two fused ring groups, namely anthracene and benzophenanthrene-furan, has proper excited state energy level and energy transmission efficiency, can improve the exciton utilization rate, reduces quenching, and can be applied to the field of organic light emitting devices, such as organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices, organic light emitting devices and organic light emitting devices. Therefore, the driving voltage of the organic light-emitting device is reduced and the service life of the organic light-emitting device is prolonged.
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