Touch Electrode Structure Without Jumpers
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Solution Overview
Problem
Conventional touch panels require complex fabrication processes and are prone to errors due to the use of jumpers and insulating layers, which can lead to reduced yield rates and functionality issues.
Innovation Solution
A touch electrode structure where electrodes are electrically independent, formed by sub-electrodes that cover multiple position units with unique combinations, eliminating the need for jumpers and insulating layers, simplifying the process and improving yield rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If jumpers and insulating layers are used to isolate horizontal and vertical electrodes, then the electrodes can be electrically isolated, but the fabrication process becomes complicated and yield rate decreases
Solution Approach 1:
The electrode pattern is divided into separate horizontal electrode regions and vertical electrode regions that do not intersect. Each region is independently formed through sequential lithography processes, eliminating the need for jumpers and insulating layers to achieve electrical isolation.
Solution Approach 2:
The problematic jumpers and insulating layers are completely removed from the structure. The patent achieves electrical isolation by strategically designing non-intersecting electrode regions, extracting the unnecessary isolation components from the conventional design.
2Reliability
If jumpers are used to connect electrode units, then the electrode function can be maintained, but the structure becomes more complex and prone to errors
Solution Approach 1:
Jumpers are completely eliminated from the electrode structure. The patent achieves electrode connectivity through direct continuous electrode patterns in horizontal and vertical regions, removing the need for jumper components that introduce complexity and failure points.
Solution Approach 2:
Instead of using jumpers to connect separate electrode segments, the patent inverts the approach by creating continuous electrode regions that naturally extend without interruption, achieving connectivity through the absence of breaks rather than through connecting elements.
3Reliability
If more lithography processes are used to dispose jumpers and insulating layers, then electrode isolation can be achieved, but production time increases and productivity decreases
Solution Approach 1:
The patent removes the need for additional lithography processes dedicated to forming jumpers and insulating layers. By designing non-intersecting electrode regions, the isolation function is achieved through the electrode pattern itself, eliminating redundant manufacturing steps.
Solution Approach 2:
The electrode isolation function is merged into the electrode pattern design itself rather than being achieved through separate isolation layers. The horizontal and vertical electrode regions are integrated into a single continuous pattern that inherently provides isolation through its geometry.
Data Source
AI summary
A touch panel and a touch electrode structure thereof are provided. The touch electrode structure defines position units and includes electrodes electrically insulated from each other. Each of the electrodes covers more than one of the position units and comprises a plurality of sub-electrodes electrically insulated from each other. Each of the sub-electrodes includes sub-electrode units. Each of the position units is corresponding to at least one of the sub-electrode units of at least one of the sub-electrode, and combinations of the sub-electrode units of the different sub-electrodes in the respective position units are different. In the touch electrode structure, each electrode can be electrically independent without needing to dispose a jumper and an insulating layer, thus simplifying process steps and improving a yield rate at the same time.