Capacitive Touch Panel Insulation and Light Shielding Integration
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Solution Overview
Problem
The manufacturing of capacitive touch panels is complex due to the need for additional light shield programs to address light reflection issues from metal lines, which increases manufacturing difficulty and cost.
Innovation Solution
A mask pattern is used as both an insulation layer to isolate bridging portions of conductive electrodes and a light shield layer, simplifying manufacturing steps and reducing material costs while improving light reflection by thermally treating the mask pattern to form an insulation pattern that covers the side surfaces of conductive patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If additional light shield programs are added after metal lines are completed to improve light reflection, then light reflection is improved, but manufacturing complexity and difficulty increase
Solution Approach 1:
The patent combines the light shield layer and insulation layer into a single integrated layer structure. The light shield layer is formed simultaneously with the insulation layer during the same manufacturing process step, eliminating the need for separate additional light shield programs and reducing manufacturing complexity while maintaining effective light reflection control.
Solution Approach 2:
The patent creates a multi-functional layer that simultaneously performs both light shielding and insulation functions. This integrated layer serves dual purposes: blocking light reflection from metal lines and providing electrical insulation, thereby reducing the total number of manufacturing steps and process complexity.
2Object-affected harmful factors
If multiple separate layers are used for insulation and light shielding, then both functions are achieved, but manufacturing steps and material costs increase
Solution Approach 1:
The patent merges the light shield layer and insulation layer into a single integrated structure that is formed in one manufacturing process step. This consolidation reduces the total number of manufacturing steps, improves production efficiency, and decreases material costs by eliminating redundant processes and materials.
Solution Approach 2:
The integrated layer structure performs multiple functions simultaneously - providing both light shielding and electrical insulation properties. This multi-functionality approach reduces material usage and simplifies the manufacturing bill of materials, thereby reducing overall material costs while maintaining productivity.
3Adaptability or versatility
If metal lines are integrated into color filter substrate structure, then touch line integration is achieved, but additional light shield programs are required increasing manufacturing difficulty
Solution Approach 1:
The patent combines the light shield function and insulation function into a single integrated layer that is formed during the normal touch line fabrication process. This integration allows metal lines to be incorporated into the color filter substrate structure without requiring additional separate light shield programs, thereby maintaining manufacturing ease while achieving full integration.
Solution Approach 2:
The patent creates a universal layer structure that simultaneously provides light shielding, insulation, and integration capabilities. This multi-functional approach enables the metal lines to be fully integrated into the color filter substrate without compromising manufacturing ease, as the same layer structure handles multiple requirements.
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 effectively simplifies the manufacturing process, reduces material costs, and enhances light reflection by using a single mask pattern for both insulation and light shielding, thereby improving the efficiency and quality of capacitive touch panels.
Implementation Method 1
thermally treating a mask pattern of an insulation material to form an insulation pattern substantially covering a side surface of the second conductive pattern
Data Source
AI summary
A panel is provided, including a first conductive pattern and a second conductive pattern. The first conductive pattern includes a first portion and a second portion; the second conductive pattern connects the first portion to the second portion, and an insulation pattern substantially covering a side surface of the second conductive pattern. The insulation pattern is formed by thermally treating a mask pattern of an insulation material. A horizontal distance between an outer side surface of the insulation pattern and an inner side surface adjacent to the second conductive pattern is less than 3 micrometers.