Conductive Structure with Copper-Manganese Darkening Layer
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Solution Overview
Problem
Existing touch screen panels with metal fine patterns suffer from high reflectance and glare due to their conductive metal electrodes, which affect visibility and touch recognition speed, especially in large-area applications.
Innovation Solution
A conductive structure body comprising a substrate, a conductive pattern layer, and a darkening pattern layer made of a copper-manganese-based material (Cu a Mn b O c N d) is introduced, where the darkening pattern layer is applied on at least one surface of the conductive pattern layer to reduce reflectance and improve absorbance, thereby enhancing visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductive pattern layer is used in touch screen panels, then conductivity and touch recognition speed are improved, but light reflectance and glare increase, reducing visibility
Solution Approach 1:
A darkening pattern layer is introduced as an intermediary between the conductive pattern layer and the external environment. This intermediate layer absorbs excess light and reduces glare while allowing the underlying conductive pattern to maintain its electrical functionality for touch recognition
Solution Approach 2:
The patent creates a composite structure combining a conductive pattern layer (for electrical conductivity) with a darkening pattern layer (for optical control). The composite material approach allows simultaneous achievement of high conductivity for fast touch recognition and low reflectance for improved visibility
2Speed
If the conductive pattern layer is made more conductive to improve touch recognition, then touch recognition speed increases, but the metal electrode's reflectance and glare worsen
Solution Approach 1:
The patent segments the functional requirements by separating the conductive pattern layer (optimized for electrical conductivity and touch recognition speed) from the optical control function (handled by the darkening pattern layer). This segmentation allows each layer to be optimized independently for its specific function without compromise
3Illumination intensity
If a darkening pattern layer is added to reduce reflectance, then visibility improves, but the structure complexity and manufacturing process increase
Solution Approach 1:
The darkening pattern layer serves multiple functions simultaneously: it reduces light reflectance and glare, improves visibility, and can be integrated with the conductive pattern layer formation process. This multi-functionality approach adds minimal structural complexity while achieving multiple benefits
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 copper-manganese-based darkening pattern layer significantly reduces light reflectance and glare, improving the visibility of the conductive pattern and enhancing touch recognition speed by minimizing the influence on conductivity, making it suitable for large-area touch screen panels and display devices.
Implementation Method 1
a darkening pattern layer provided on at least one surface of the conductive pattern layer, in which the darkening pattern layer includes a copper-manganese-based material... improve absorbance of the conductive pattern layer, thereby preventing light reflection
Data Source
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AI summary
The present specification relates to a conductive structure body and a method for manufacturing the same.