Conductive Structure Darkening Layer Reduces Reflectance
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Solution Overview
Problem
Current touch screen panels with metal fine pattern electrodes face issues of high reflectance and visibility problems due to high reflectance and haze values, and require costly and complex manufacturing processes, especially when trying to implement large-area touch screens with improved visibility.
Innovation Solution
A conductive structure body comprising a substrate, a conductive layer, at least one intermediate layer, and a darkening layer is developed, where the darkening layer is applied to reduce reflectance and improve absorbance, thereby enhancing visibility without compromising conductivity, and can be patterned to match the conductive layer for specific applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal fine pattern electrode is used in touch screen panels, then conductivity is improved, but reflectance increases causing visibility problems
Solution Approach 1:
An intermediate layer is introduced between the metal fine pattern electrode and the outer environment. This intermediate layer acts as a mediator that reduces the reflectance of the metal electrode while maintaining its conductivity, thereby solving the visibility problem caused by high reflectance without sacrificing the electrical performance
Solution Approach 2:
The intermediate layer is designed to modify the optical properties of the metal electrode by changing its apparent color and reducing reflectance. Through careful selection of the intermediate layer's optical characteristics, the metal electrode's high reflectance is reduced while maintaining visibility and aesthetic appearance
2Illumination intensity
If the conductive layer is made more transparent to improve visibility, then visibility improves, but reflectance control becomes difficult
Solution Approach 1:
The patent employs a composite structure consisting of the metal fine pattern electrode combined with the intermediate layer. This composite material approach allows the system to simultaneously achieve transparency for visibility and controlled reflectance, as the intermediate layer's optical properties are designed to complement the metal electrode's characteristics
3Ease of manufacture
If conventional manufacturing processes are used for metal fine pattern electrodes, then manufacturing is simpler, but process cost increases and complexity arises
Solution Approach 1:
The formation of the intermediate layer and the metal fine pattern electrode is merged into an integrated manufacturing process. By combining these steps, the patent reduces overall process complexity and cost while achieving the desired optical and electrical properties, rather than treating them as separate complex operations
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 conductive structure body achieves a significant reduction in reflectance, improving visibility and touch recognition speed by reducing surface resistance, making it suitable for large-area touch screens and other display devices.
Implementation Method 1
the darkening layer is applied to reduce reflectance and improve absorbance, thereby enhancing visibility
Data Source
AI summary
The present specification provides a conductive structure body comprising: a substrate; a conductive layer; at least one intermediate layer; and a darkening layer, and a method of manufacturing the same. The conductive structure body may prevent reflectance by the conductive layer without affecting conductivity of the conductive layer, and may improve a concealing property of the conductive layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body.