Colored Composition Dye Multimer Light Fastness Low Oxygen
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Color filters produced using dye multimers with xanthene dye structures experience deteriorated light fastness when exposed to low oxygen concentrations over extended periods.
Innovation Solution
A colored composition with a specific water content range (0.01% to 3.0% by mass) and toluene concentration (0.01 ppm to 13 ppm) is used, incorporating a dye multimer with a xanthene dye structure having both cationic and anionic moieties, along with sodium and potassium ions, to maintain light fastness under low oxygen conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a dye multimer with xanthene dye structure having cationic and anionic moieties is used, then developability is improved, but light fastness deteriorates under low oxygen concentration conditions
Solution Approach 1:
The patent applies parameter changes by precisely controlling the water content (0.01-3.0% by mass) and toluene concentration (0.01-13 ppm) in the colored composition. This parameter optimization resolves the contradiction by maintaining the dye multimer's developability while preventing its degradation under low oxygen conditions, thereby preserving light fastness.
2Productivity
If the colored composition is stored for a long period under low oxygen concentration, then production efficiency is maintained, but dye degradation occurs leading to poor light fastness
Solution Approach 1:
The patent applies preliminary action by pre-optimizing the composition formulation with specific water content (0.01-3.0% by mass) and toluene concentration (0.01-13 ppm) before storage. This preliminary preparation ensures that the dye multimer remains stable during long-term storage under low oxygen conditions, preventing degradation and maintaining light fastness without compromising production efficiency.
3Reliability
If water content is increased to prevent dye degradation, then light fastness is improved, but pattern line width uniformity deteriorates
Solution Approach 1:
The patent applies parameter changes by establishing a precise water content range (0.01-3.0% by mass) that simultaneously achieves both light fastness and pattern line width uniformity. This optimized parameter range prevents excessive water from causing line width variations while maintaining sufficient stability against dye degradation.
4Reliability
If toluene concentration is increased to maintain composition stability, then light fastness is improved, but impurity generation increases
Solution Approach 1:
The patent applies parameter changes by optimizing toluene concentration to a specific range (0.01-13 ppm) that balances composition stability with impurity control. This precise concentration level provides sufficient stability to prevent dye degradation and maintain light fastness while keeping toluene-induced impurities at acceptable levels.
Data Source
AI summary
Provided are a colored composition which can maintain good light fastness even when placed under an environment having a low oxygen concentration for a long period of time, a cured film, a color filter, a method for producing a color filter, a solid-state image sensor, and an image display device.The colored composition includes a dye multimer (A) and a solvent (B), in which the dye multimer (A) has a partial structure derived from a xanthene dye having a cationic moiety, and also has an anionic moiety, and the content of water in the colored composition is 0.01% by mass to 3.0% by mass.