Color Conversion Panel Nanocrystal Layer Spacing
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Solution Overview
Problem
Conventional liquid crystal displays experience light loss and reduced color reproducibility due to the polarization layer and color filter, necessitating the development of a color conversion display panel that enhances reliability and display quality.
Innovation Solution
A color conversion display panel with a first and second color conversion layer including semiconductor nanocrystals, a transmission layer, and a blue light cutting filter, where the distances and thicknesses between layers are optimized, and an overcoat layer with a planar side to accommodate a seamless polarization layer, improving light management and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a color filter and polarization layer are used in conventional liquid crystal displays, then color reproduction is achieved, but light loss increases and display quality deteriorates
Solution Approach 1:
The patent uses quantum dot layers that convert light wavelengths to produce colors directly, replacing the conventional color filter approach. The quantum dots emit specific wavelengths when excited by blue light, eliminating the need for absorbing color filters and reducing light loss while maintaining color reproduction quality
Solution Approach 2:
The patent removes the polarization layer from the display structure, which is a conventional component that causes significant light loss. By extracting this component and using quantum dot-based color conversion instead, the display achieves better light efficiency without sacrificing display quality
2Reliability
If multiple color conversion layers are added to improve color reproduction, then color quality enhances, but device complexity increases
Solution Approach 1:
The patent divides the color conversion function into multiple thin quantum dot layers, each responsible for specific color wavelengths. This segmentation allows for precise color control while keeping each individual layer simple and manageable, reducing overall structural complexity compared to using thick conventional color filters
Solution Approach 2:
The patent uses composite quantum dot structures with different core-shell compositions to achieve specific color emissions. These composite materials provide enhanced color reproduction through quantum confinement effects while maintaining thin layer profiles, avoiding the need for complex multi-layer conventional color filter systems
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 optimized configuration enhances the reliability and display quality of the color conversion display panel by reducing light loss and improving color reproducibility, ensuring stable and high-quality image rendering.
Implementation Method 1
a blue light cutting filter disposed between the color conversion substrate and the first color conversion layer
Implementation Method 2
a first color conversion layer and a second color conversion layer disposed on a color conversion substrate and including semiconductor nanocrystals
Data Source
AI summary
A color conversion display panel includes a first color conversion layer and a second color conversion layer disposed on a color conversion substrate and including semiconductor nanocrystals, and a transmission layer, wherein a first distance between the first and second color conversion layers is different from a second distance between one of the first and second color conversion layers and the transmission layer.