Resin Composition with Phenyl-Based Compound for Quantum Dot Stability
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Solution Overview
Problem
Current quantum dots-containing resin compositions for light conversion layers in display devices exhibit poor storage stability at room temperature, affecting the stability and performance of the light conversion layer and the devices using them.
Innovation Solution
A resin composition comprising quantum dots, an alkali-soluble resin, an ethylenically unsaturated monomer, a photoinitiator, a solvent, and a phenyl-based compound, which includes specific compounds that enhance viscosity stability, patterning ability, and pattern stability, forming a light conversion layer with improved resolution and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional quantum dots-containing resin composition is used for light conversion layer, then the light conversion layer can be manufactured, but the storage stability at room temperature deteriorates
Solution Approach 1:
The patent modifies the chemical composition parameters of the resin by introducing a phenyl-based compound with specific molecular structure (Formula 1 or Formula 2) and controlled content (0.01-5 parts by weight per 100 parts resin). This parameter change in the resin composition fundamentally improves the storage stability at room temperature while maintaining the light conversion function.
Solution Approach 2:
The patent creates a composite resin composition by combining quantum dots, alkali-soluble resin, ethylenically unsaturated monomer, photoinitiator, and the specially designed phenyl-based compound. This composite material approach leverages the synergistic effects of each component to achieve both good storage stability and light conversion performance.
2Manufacturing precision
If resin composition is optimized for patterning ability, then the light conversion layer achieves good resolution, but the viscosity stability may deteriorate
Solution Approach 1:
The phenyl-based compound with specific structural parameters (Formula 1 or Formula 2) and controlled content range (0.01-5 parts by weight) simultaneously optimizes both viscosity stability and patterning ability. The specific molecular structure parameters of the phenyl-based compound enable it to function as both a viscosity stabilizer and a patterning promoter.
Solution Approach 2:
The phenyl-based compound serves multiple functions simultaneously: it acts as a viscosity stabilizer, a patterning agent, and maintains the light conversion performance. This multi-functionality resolves the contradiction between achieving good patterning ability and maintaining viscosity stability.
3Illumination intensity
If quantum dots are added to improve brightness and color purity, then the display quality improves, but the storage stability of the resin composition deteriorates
Solution Approach 1:
The phenyl-based compound acts as an intermediary substance between the quantum dots and the alkali-soluble resin. It mediates the interaction to prevent aggregation or degradation of quantum dots during storage, thereby maintaining both the brightness enhancement and the storage stability.
Solution Approach 2:
The patent formulates a composite resin composition where quantum dots are stably integrated with the phenyl-based modified resin matrix. This composite structure protects the quantum dots while maintaining their optical properties, achieving both improved brightness and enhanced storage stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resin composition provides a light conversion layer with good viscosity stability, patterning ability, and pattern stability, suitable for light emitting devices, enhancing the brightness and color purity of display devices.
Implementation Method 1
a photoinitiator (D)
Implementation Method 2
a light conversion layer including quantum dots is disposed in display devices
Data Source
AI summary
A resin composition, a light conversion layer and a light emitting device are provided. The resin composition includes a quantum dot (A), an alkali-soluble resin (B), an ethylenically unsaturated monomer (C), a photoinitiator (D), a solvent (E) and a phenyl-based compound (F). The phenyl-based compound (F) includes at least one of a compound represented by following Formula (F-1) and a compound represented by following Formula (F-2). Based on a total usage amount of the resin composition as 100 parts by weight, a usage amount of the phenyl-based compound (F) is 0.05 to 5 parts by weight.In Formula (F-1) and Formula (F-2), the definition of R1, R3, R4, Y, Z, m, n and p are the same as defined in the detailed description.