Solid Color Film Host-Guest Structure Prevents Dye Agglomeration
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Solution Overview
Problem
The absorption of shoulder peaks by rhodamine-based dyes leads to agglomeration, causing the absorption of blue and green light, which decreases brightness and affects the color gamut in display technologies.
Innovation Solution
A solid color film is created using a host-guest structure formed by bonding a carboxyl group-containing rhodamine-based dye with aminoadamantane through a chemical bond, supported on a cucurbituril host structure, preventing agglomeration and enhancing light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If rhodamine-based dye is used to remove stray light and improve color gamut, then the purity of three primary colors is improved, but the dye agglomerates and absorbs blue and green light, reducing brightness
Solution Approach 1:
The patent introduces adamantane as an intermediary substance that bonds with the rhodamine-based dye through covalent bonding. This intermediary structure acts as a spacer that prevents dye molecules from agglomerating while maintaining their light-absorbing functionality for stray light removal, thus resolving the contradiction between brightness and color gamut
Solution Approach 2:
The patent creates a composite material system consisting of rhodamine-based dye molecules bonded to adamantane structures. This composite structure combines the light-absorbing properties of the dye with the spatial spacing capability of the adamantane framework, preventing agglomeration and maintaining both brightness and color gamut performance
2Manufacturing precision
If the concentration of rhodamine-based dye is increased to improve color gamut, then the absorption of stray light is enhanced, but the agglomeration effect is strengthened, absorbing more blue and green light and reducing brightness
Solution Approach 1:
Adamantane serves as a mediator between dye molecules, providing a rigid structural framework that maintains optimal spacing even at higher dye concentrations. This allows the system to achieve better color gamut through increased stray light absorption while the adamantane spacer prevents excessive agglomeration that would otherwise cause excessive blue and green light absorption
Solution Approach 2:
The patent changes the molecular structure parameter by bonding the dye to adamantane, which fundamentally alters the aggregation behavior of the dye molecules. This structural modification allows the system to tolerate higher effective dye concentrations for improved color gamut without suffering from the detrimental agglomeration effects that would reduce brightness
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
This approach improves the brightness and display quality by preventing the rhodamine-based dye from absorbing blue and green light, while maintaining a high color gamut, and the adamantane and cucurbituril provide thermal stability for better film preparation.
Implementation Method 1
a guest structure supported on the host structure and formed by bonding a carboxyl group-containing rhodamine-based dye and an aminoadamantane through a chemical bond, wherein the guest structure is bonded to the host structure through the adamantane to form a host-guest structure
Data Source
AI summary
The present invention provides a solid color film, a preparation method thereof and a display device. The solid color film includes a transparent substrate and a solid color material dispersed in the transparent substrate, and the solid color material includes a host structure formed of cucurbituril and a guest structure supported on the host structure and formed by bonding a carboxyl group-containing rhodamine-based dye and an aminoadamantane through a chemical bond, wherein the guest structure is bonded to the host structure through the adamantane to form a host-guest structure.