Color-Resist Composition for Display Panels
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Solution Overview
Problem
The existing color-resist compositions used in display panels often result in unsatisfactory inclination angles at the edge of the color-resist pattern, leading to issues like light leakage and display chromatic aberration.
Innovation Solution
A color-resist composition comprising a photocurable resin and a photosensitive monomer with a specific chemical structure, where the ratio of the photocurable resin to the photosensitive monomer is set between 0.3 to 0.7, enhancing the crosslinking degree and improving the hardness and inclination angle of the color-resist film layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional color-resist materials are used in the yellow light process, then the color-resist layer can be formed, but the inclination angle at the edge is unsatisfactory (either too large or too small)
Solution Approach 1:
The patent changes the chemical composition parameters of the color-resist material by introducing a specific photosensitive monomer with a defined chemical structure (containing carboxyl groups and vinyl unsaturated double bonds) and controlling the molecular mass (500-1200), thereby optimizing the curing characteristics to achieve an acceptable inclination angle at the edge
Solution Approach 2:
The patent creates a composite color-resist material system combining a photocurable resin with a specific photosensitive monomer, where the photosensitive monomer contains functional groups (carboxyl, hydroxyl, ether) that participate in crosslinking reactions, resulting in improved edge inclination angle and display performance
2Shape
If the inclination angle at the edge is too large, then a steeper chamfer pattern is formed, but light leakage occurs
Solution Approach 1:
The patent optimizes the chemical composition parameters of the color-resist material to achieve optimal curing characteristics that produce an acceptable inclination angle (not too steep), thereby preventing light leakage while maintaining the chamfer pattern
3Shape
If the inclination angle at the edge is too small, then the edge has a long trail, but display chromatic aberration occurs
Solution Approach 1:
The patent modifies the chemical composition by introducing a specific photosensitive monomer with controlled molecular mass and functional groups, which optimizes the curing process to achieve an acceptable inclination angle that prevents both excessive edge trails and chromatic aberration
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 proposed solution effectively improves the hardness and inclination angle of the color-resist film layer, thereby enhancing the display effect and overall performance of the display panel by reducing light leakage and chromatic aberration.
Implementation Method 1
During the process of exposing to light, the part that is exposed to light generates active free radicals under the irradiation of ultraviolet light due to the action of a photoinitiator, arising crosslinking reaction, and finally forming a network structure corresponding to different color-resist patterns
Data Source
AI summary
Embodiments of the present disclosure provide a color-resist composition and a display panel, and the color-resist composition includes a photocurable resin and a photosensitive monomer. The photosensitive monomer has a chemical structure provided by the embodiments of the present disclosure. The photocurable resin is correspondingly selected from the photocurable resin in the embodiments of the present disclosure. The crosslinking degree of the photocurable resin can be enhanced by adding the photosensitive monomer to the photocurable resin during a preparation process to form a color-resist film layer, which improves the overall performance of the display panel.