Curable Color Filter Composition for Edge Shape and Adhesion
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Solution Overview
Problem
Existing curable compositions used in the production of color filters and solid-state imaging elements often result in patterned cured products with insufficient edge shape quality, leading to defects and reduced adhesiveness.
Innovation Solution
A curable composition comprising a colorant, a resin, and a thiol compound, where the thiol compound has a thiol value between 6×10−6 mmol/g to 6×10−4 mmol/g or a content of 1 ppm to 99 ppm, improving curing properties and edge shape retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing curable compositions are used, then the curing process can be completed, but the edge shape of the patterned cured product is insufficient
Solution Approach 1:
The patent applies parameter changes by precisely controlling the thiol value of the thiol compound within a specific range (6×10−6 mmol/g to 6×10−4 mmol/g) and adjusting the content of the thiol compound (1 ppm to 99 ppm). These parameter optimizations enable the composition to achieve excellent edge shape retention and high curing reliability simultaneously, resolving the contradiction between manufacturing precision and reliability.
Solution Approach 2:
The patent uses a composite material system comprising a resin, a colorant, and a thiol compound with specific molecular weight characteristics (300 or more). This composite formulation enhances both the edge shape definition and the overall reliability of the cured product by combining materials with complementary properties that address both manufacturing precision and defect reduction.
2Strength
If existing curable compositions are used, then the composition can be cured, but the adhesiveness is reduced
Solution Approach 1:
The patent optimizes the thiol value parameter within the range of 6×10−6 mmol/g to 6×10−4 mmol/g and controls the thiol compound content at 1 ppm to 99 ppm. These parameter adjustments simultaneously improve adhesiveness and maintain excellent edge shape, resolving the contradiction between strength and manufacturing precision.
Solution Approach 2:
The patent introduces local quality by incorporating a thiol compound with specific local molecular characteristics (molecular weight of 300 or more) into the composition system. This localized molecular property enhancement improves interfacial adhesiveness while preserving the overall edge shape definition of the patterned cured product.
3Reliability
If existing curable compositions are used, then the composition can be applied, but defects increase in the patterned cured product
Solution Approach 1:
The patent applies parameter changes by setting the thiol value within 6×10−6 mmol/g to 6×10−4 mmol/g and the thiol compound content within 1 ppm to 99 ppm. These optimized parameters reduce defects and improve reliability while maintaining ease of manufacture through straightforward composition formulation and processing.
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 curable composition achieves excellent edge shape retention, enhanced adhesiveness, and reduced defects in the patterned cured products, making it suitable for high-resolution applications such as color filters and solid-state imaging elements.
Implementation Method 1
A curable composition comprising a colorant, a resin, and a thiol compound
Implementation Method 2
a polymerizable compound; and a photopolymerization initiator
Data Source
AI summary
Provided are a curable composition including a colorant, a resin, and a thiol compound, in which a thiol value is 6×10−6 mmol/g to 6×10−4 mmol/g; a curable composition including a colorant, a resin, and a thiol compound, in which a content of the thiol compound is 1 ppm to 99 ppm; a cured product of the curable composition; a color filter including the cured product; and a solid-state imaging element and an image display device including the color filter.