Samsung display co., ltd. (20240138221). ORGANIC LIGHT-EMITTING DEVICE simplified abstract
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- 1 ORGANIC LIGHT-EMITTING DEVICE
ORGANIC LIGHT-EMITTING DEVICE
Organization Name
Inventor(s)
ORGANIC LIGHT-EMITTING DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240138221 titled 'ORGANIC LIGHT-EMITTING DEVICE
Simplified Explanation
The organic light-emitting device and display apparatus described in the patent application include a unique structure with multiple sub-emission layers emitting light of different wavelengths. Here are some key points to note:
- The device consists of a first electrode, a second electrode, an emission layer, a hole control layer, and an electron control layer.
- The emission layer contains multiple sub-emission layers that emit light of different colors without overlapping.
- Each sub-emission layer includes a host material and a color light-emitting dopant, forming an exciplex with a triplet energy equal to or greater than the dopant's triplet energy.
Potential Applications
The technology described in the patent application could be used in:
- High-resolution displays
- Lighting applications
- Wearable technology
Problems Solved
This technology addresses issues such as:
- Color accuracy in displays
- Energy efficiency in lighting
- Uniformity in emission across the display
Benefits
The benefits of this technology include:
- Improved color reproduction
- Energy savings
- Enhanced display quality
Potential Commercial Applications
The technology could find commercial applications in:
- Smartphone displays
- Television screens
- Automotive lighting systems
Possible Prior Art
One possible prior art in this field is the use of exciplex-based organic light-emitting devices for improved color rendering and efficiency.
Unanswered Questions
How does the exciplex formation impact the overall efficiency of the device?
The exciplex formation in the emission layer is crucial for achieving the desired color emission. However, the exact impact of this exciplex on the device's efficiency needs further investigation.
What are the challenges in scaling up this technology for large-area displays?
While the technology shows promise for small-scale applications, scaling it up for larger displays may pose challenges in terms of manufacturing processes and cost-effectiveness.
Original Abstract Submitted
an organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.
