Flexible Touch Sensor Interlaced Chain Structure
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Solution Overview
Problem
Current flexible touch sensors face challenges due to the poor flexible performance of Indium-Tin Oxide (ITO) materials, and the immature development of alternative flexible materials like silver nanowires and graphene, which hinder the production of flexible touch panels that meet market demands.
Innovation Solution
A flexible touch sensor design featuring interlaced chain structures composed of rigid Indium-Tin Oxide conductors and flexible nanometer silver, graphene, or organic conductors, with insulating layers and a glass substrate, allowing for improved flexibility and production of flexible touch panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ITO material is used in touch panels, then electrical conductivity is improved, but flexible performance deteriorates
Solution Approach 1:
The conductive layer is segmented into multiple ITO patterns arranged in a grid or mesh structure, where each segment is isolated but collectively provides continuous conductivity. This segmentation allows the underlying flexible substrate to bend while maintaining electrical pathways through the distributed pattern network.
Solution Approach 2:
The patent employs thin-film deposition techniques to create ultra-thin ITO layers that can flex with the substrate. The thin-film structure reduces brittleness and enables the conductive layer to conform to bent surfaces while maintaining electrical functionality.
2Adaptability or versatility
If flexible materials like silver nanowires and graphene are used to replace ITO, then flexible performance is improved, but manufacturing capability deteriorates
Solution Approach 1:
The patent uses ITO as an intermediary material that bridges the gap between rigid conventional touch panels and flexible requirements. By optimizing ITO deposition parameters, pattern designs, and layer thicknesses, the system achieves flexible performance using a material with established manufacturing processes, avoiding the need to adopt immature flexible material fabrication techniques.
Data Source
AI summary
This disclosure is related to the field of semiconductor technology, more specifically, to a flexible touch sensor and display device including the flexible touch sensor. The flexible touch sensor is formed through the construction of chain structure formed by flexible conductors and rigid conductors, that is, based on the principle of chains, connecting the rigid conductors and flexible conductors in an interval way, to form a chain structure, and making the manufactured sensor and the display device reach the purpose of being flexible, and the problem caused by the immature of the development of flexible materials that the flexible sensor can't be mass-produced can be effectively solved.