18518166. LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME simplified abstract (Samsung Display Co., LTD.)
Contents
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
Organization Name
Inventor(s)
TSUYOSHI Naijo of Yongin-si (KR)
SUNG-SOO Bae of Yongin-si (KR)
CHANGWOONG Chu of Yongin-si (KR)
LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18518166 titled 'LIGHT EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
The abstract describes a light emitting device with two light emitting units, each containing different layers with specific components.
- The first emission layer includes a first host, a phosphorescence sensitizer, and a first fluorescence dopant.
- The second emission layer includes a second host different from the first host, and a second fluorescence dopant.
- The first fluorescence dopant has a highest occupied molecular orbital (HOMO) energy level of about -5.2 eV or less, while the second fluorescence dopant has a HOMO energy level of about -5.2 eV or more.
Potential Applications: - Lighting applications - Display technologies - Signage and advertising
Problems Solved: - Enhanced light emission efficiency - Improved color rendering - Increased energy efficiency
Benefits: - Brighter and more vibrant light output - Energy savings - Customizable color options
Commercial Applications: Title: Advanced Light Emitting Device for Enhanced Illumination This technology can be used in various commercial applications such as: - LED lighting products - Display screens - Automotive lighting systems
Questions about the technology: 1. How does the use of different hosts in the emission layers affect the overall performance of the light emitting device? 2. What are the specific advantages of having fluorescence dopants with different HOMO energy levels in the device?
Original Abstract Submitted
A light emitting device of an embodiment includes a first light emitting unit including a first emission layer, and a second light emitting unit including a second emission layer. The first emission layer includes a first host, a phosphorescence sensitizer, a first fluorescence dopant, the second emission layer includes a second host which is different from the first host, and a second fluorescence dopant, the first fluorescence dopant has a highest occupied molecular orbital (HOMO) energy level of about −5.2 eV or less, and the second fluorescence dopant has a HOMO energy level of about −5.2 eV or more.
