Color Conversion Panel Structure for Higher Light Transmission
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Solution Overview
Problem
Existing display devices suffer from light loss and inefficiencies in color conversion, necessitating improvements in color conversion efficiency and light transmission.
Innovation Solution
A color conversion panel comprising a substrate with a transparent filter layer, partitioning wall layers, and multiple color conversion layers, including quantum dots, to enhance light scattering and refractive properties, thereby increasing color conversion efficiency and light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional color conversion structures are used, then the device structure is simple, but color conversion efficiency is low and light loss occurs
Solution Approach 1:
The color conversion panel is divided into multiple functional layers including a transparent filter layer with scatterers, multiple partitioning wall layers (first and second), refractive layers, and color conversion layers. Each layer performs a specific function: the transparent filter layer transmits and scatters light, partitioning wall layers define color conversion regions, refractive layers control light direction, and color conversion layers convert light wavelengths. This segmentation allows optimized light management at each stage, significantly improving color conversion efficiency while maintaining manageable structural complexity through modular design
Solution Approach 2:
The patent introduces multiple dimensional elements to control light propagation: scatterers within the transparent filter layer create three-dimensional light scattering paths, partitioning wall layers create vertical stacking of color conversion regions, and refractive layers add angular control dimensions. The combination of transparent filter layer, partitioning wall layers, and color conversion layers forms a multi-layered three-dimensional structure that manipulates light in multiple spatial dimensions, enhancing color conversion efficiency by ensuring comprehensive light-matter interaction
2Loss of energy
If light transmission is increased, then color conversion efficiency improves, but light scattering and refraction control become more complex
Solution Approach 1:
The transparent filter layer acts as an intermediary between the incident light and the color conversion layers. It contains scatterers that diffuse light uniformly across the color conversion regions, ensuring maximum light transmission while controlled scattering. The refractive layers serve as intermediaries between different optical zones, controlling light direction and preventing cross-contamination between adjacent color conversion regions. These intermediary layers enable efficient light management without requiring direct complex control at each interface
Solution Approach 2:
Different regions of the panel have specialized optical properties: the transparent filter layer has uniform scattering properties across its area, partitioning wall layers have localized light-blocking properties at specific boundaries, refractive layers have position-dependent refraction angles, and color conversion layers have wavelength-specific conversion characteristics. This local quality optimization ensures that each region performs its specific function efficiently, maximizing overall light transmission and color conversion while keeping the overall system manageable
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 solution significantly enhances color conversion efficiency and light purity by utilizing scatterers and refractive layers to scatter and refract light, improving the overall performance of display devices.
Implementation Method 1
The transparent filter layer and the plurality of first partitioning wall layers may include a plurality of scatterers (light scatterers)
Implementation Method 2
a first refractive layer that is on the transparent filter layer and the plurality of first partitioning wall layers
Data Source
AI summary
A color conversion panel and a display device are provided to include: substrate; a transparent filter layer and a plurality of first partitioning wall layers that are on the substrate; a first refractive layer that is on the transparent filter layer and the plurality of first partitioning wall layers; a plurality of second partitioning wall layers that are on the first refractive layer, and overlap the plurality of first partitioning wall layers; and a plurality of color conversion layers that are on the first refractive layer, and in a region defined by the plurality of first partitioning wall layers and the plurality of second partitioning wall layers.