A Novel Class of Blue PhOLED Emitter Materials
- Field
- Advanced Materials
- Patent
- IP00584
Key Problem and Market Opportunity
- OLED are increasingly used to replace LCD as flat panel display technology
- Phosphorescent emitter materials are preferred over florescent emitter materials in the fabrication of OLED because the external quantum efficiency (EQE) is four times higher
- Since the life time of blue phosphorescent emitters are too short for practical applications, current OLED products use red and green phosphorescent emitters and blue fluorescent emitters
- There is a desire to develop blue phosphorescent emitters with high EQE and long lifetime
- The OLED emitter material market is expected to grow at a CAGR of more than 35% from 2017 to reach US$ 2.5 billion by 2020.
Key Advantages of the Technology
- It is a new class of evaporable and solution processable, platinum-based blue-color OLED emitters
| HKU Blue PhOLED emitter | |
|---|---|
| CIE Coordinate | 0.14, 0.16 |
| Current Efficiency at 1,000 nits | 21.64 cd/A |
| Power Efficiency at 1,000 nits | 13.59 lm/W |
| External Quantum Efficiency at 1,000 nits | 16.61% |
Performance Data of Device Prototype (Vacuum Deposited)
Potential Product and Services
- High performance blue phosphorescent OLED emitter materials
Development Status and IP Strength
- US Patent Application No. 15/405,001
- PCT Application No. PCT/CN2017/071047
- Device prototype is available at laboratory scale