Touch Panel with Segmented Sensing Electrodes for Bending Endurance
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Solution Overview
Problem
Conventional touch panels lack sufficient bending endurance, leading to potential damage when subjected to flexural stress, which limits their application in flexible products.
Innovation Solution
A touch panel design featuring multiple sensing electrode patterns, materials, and laminated layers in different regions, allowing for enhanced bending endurance by distributing stress more effectively across the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional touch panel structure is used, then the manufacturing process is simple, but the bending endurance is insufficient
Solution Approach 1:
The touch panel is divided into a first bending region and a second non-bending region, with different sensing electrode structures in each region. The first sensing electrode in the bending region has a pattern designed to withstand flexural stress, while the second sensing electrode in the non-bending region uses a conventional design, thereby improving bending endurance without unnecessarily complicating the entire panel structure.
Solution Approach 2:
Different sensing electrode patterns are applied to different regions of the touch panel based on their functional requirements. The bending region uses a specialized electrode pattern optimized for flexibility, while the non-bending region uses a standard pattern, ensuring that complexity is only introduced where necessary to achieve the desired bending endurance.
2Reliability
If the sensing electrode pattern is made more complex to improve bending endurance, then the bending resistance increases, but the manufacturing precision requirements increase
Solution Approach 1:
The touch panel is divided into a first bending region and a second non-bending region, with different sensing electrode structures in each region. The first sensing electrode in the bending region has a pattern designed to withstand flexural stress, while the second sensing electrode in the non-bending region uses a conventional design, thereby improving bending endurance without unnecessarily complicating the entire panel structure.
3Length of moving object
If a monolayer substrate is used to thin the product, then the product thickness is reduced, but the bending endurance deteriorates
Solution Approach 1:
Different sensing electrode patterns are applied to different regions of the touch panel based on their functional requirements. The bending region uses a specialized electrode pattern optimized for flexibility, while the non-bending region uses a standard pattern, ensuring that complexity is only introduced where necessary to achieve the desired bending endurance.
Data Source
AI summary
A touch panel connected to a control circuit and includes a substrate, at least one first sensing series, at least one second sensing series, and at least one third sensing series. The substrate has at least one first sensing region and at least one second sensing region alternatively arranged in a first direction. Each first sensing series extends along the first direction and includes at least one first-first sensing portion located in the first sensing region and at least one second-first sensing portion located in the second sensing region. A pattern or material of the second-first sensing portion is different from that of the first-first sensing portions. Each second sensing series extends along a second direction intersecting with the first direction and is intersected with the first-first sensing portion. Each third sensing series extends in the second direction and is intersected with the second-first sensing portion.