Touch Panel Reinforcing Layer for Wire Fracture Prevention
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Solution Overview
Problem
Traditional touch-control pattern structures face durability and reliability issues due to the thickness of the insulating layer, which can lead to fracture at the jumping parts of the wires, affecting the reliability of the touch panel.
Innovation Solution
A capacitive sensing layer with intersecting electrode groups and an insulating layer, along with a reinforcing layer made of conductive materials placed at the intersections of the electrode groups at the edge of the insulating layer, to prevent fracture and enhance durability and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insulating layer thickness is increased to prevent coupling puncture between conductive units, then the reliability of touch panel is improved, but the jumping parts of the wire at the edge of the insulating layer容易发生 fracture, reducing durability
Solution Approach 1:
The patent applies local quality by adding a reinforcing layer specifically at the jumping parts of the wire where they contact the insulating layer edge. This localized reinforcement targets the specific area prone to fracture without requiring changes to the overall insulating layer thickness, thus maintaining reliability while improving durability at the critical stress point.
Solution Approach 2:
The patent uses composite materials by combining the original wire material with a reinforcing layer material (such as transparent conductive oxide or metal) at the jumping parts. This composite structure provides both the electrical conductivity needed for touch sensing and the mechanical strength required to prevent fracture at the vulnerable wire-insulating layer interface.
2Illumination intensity
If the conductive layer thickness is reduced to approximately 500-1000 angstrom to maintain transparency, then the optical performance is improved, but the mechanical strength of the wire is reduced, increasing susceptibility to fracture
Solution Approach 1:
The patent applies local quality by concentrating the reinforcement material at the jumping parts of the wire rather than throughout the entire conductive layer. This allows the conductive layer to remain thin (500-1000 angstrom) for optical transparency while adding mechanical strength only where it is critically needed at the wire bends and contacts.
Solution Approach 2:
The patent uses composite materials by creating a layered structure where a thin conductive layer (for transparency) is combined with a reinforcing layer (for mechanical strength) at specific locations. The reinforcing layer may consist of transparent conductive oxide or metal particles that provide both mechanical support and electrical conductivity.
Data Source
AI summary
A touch-control pattern structure is provided to reinforce capacitive sensing layer to increase the durability and reliability. The touch-control pattern structure comprises a capacitive sensing layer having two intersected electrode groups and a insulating layer located between the two intersected electrode groups at intersections of the two intersected electrode groups, and a reinforcing layer placed on the capacitive sensing layer at the intersection of the two intersected electrode groups at the edge of the insulating layer. Furthermore, the method of forming the touch-control pattern structure is also provided.