Touch Panel Electrode Formation Sequence
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Solution Overview
Problem
The existing manufacturing process for touch panels results in reduced transparency and altered resistance of the electrode layer due to volatile materials produced during high-temperature and high-pressured formation, affecting the appearance and touch sensing precision.
Innovation Solution
Forming the electrode layer on both visible and non-visible areas of the cover substrate, followed by a conductive masking layer on the non-visible area, with connecting wires electrically connected through uniaxial conduction, ensuring the electrode layer is formed before the masking layer to avoid interference with its properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the masking layer is formed first and then the electrode layer is formed at high temperature and high pressure, then the electrode layer can be properly formed, but the masking layer produces volatile materials that reduce transparency and change resistance of the electrode layer
Solution Approach 1:
The patent applies preliminary action by forming the electrode layer first on the substrate, and then forming the masking layer subsequently. This reverses the conventional sequence where the masking layer is formed first. By establishing the electrode layer beforehand, the patent prevents volatile materials from the masking layer formation process from contaminating the electrode layer, thereby maintaining the electrode layer's transparency and resistance properties while still allowing proper electrode formation.
2Ease of manufacture
If the masking layer is formed before the electrode layer, then the manufacturing process can proceed, but the volatile materials from the masking layer affect the appearance and touch sensing precision
Solution Approach 1:
The patent applies preliminary action by forming the electrode layer first on the substrate, and then forming the masking layer subsequently. This reverses the conventional sequence where the masking layer is formed first. By establishing the electrode layer beforehand, the patent prevents volatile materials from the masking layer formation process from contaminating the electrode layer, thereby maintaining the electrode layer's transparency and resistance properties while still allowing proper electrode formation.
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
This approach maintains the transparency and resistance of the electrode layer, enhancing the appearance and precision of touch sensing while increasing product yield.
Implementation Method 1
connecting wires formed on the conductive masking layer and that are electrically connected to a plurality of sensing electrodes of the electrode layer through uniaxial conduction of the conductive masking layer
Data Source
AI summary
A touch panel and a method of manufacturing the same are provided. The touch panel comprises: a cover substrate comprising a visible area and a non-visible area, wherein the non-visible area is located in a peripheral area of the visible area; an electrode layer formed on the visible area and the non-visible area of the cover substrate; a conductive masking layer formed on the non-visible area and disposed on a part of the electrode layer that is located on the non-visible area; and a plurality of connecting wires formed on the conductive masking layer and electrically connected to the electrode layer through uniaxial conduction of the conductive masking layer. The present disclosure comprises a method of manufacturing the touch panel. Accordingly, product yield is increased and touch sensing precision is maintained.