Touch Element Non-Overlapping Sensing Series Design
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Solution Overview
Problem
The manufacturing process of capacitive touch elements is complex and costly due to the requirement of multiple processes to form a sensing array without short circuits between overlapping sensing series.
Innovation Solution
A touch element design featuring non-overlapping first and second sensing series on a substrate, with connection lines extending along the edges of the first sensing series to connect second sensing pads, eliminating the need for insulating layers and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If insulating patterns are disposed at positions where sensing series are overlapped to prevent short circuit, then electrical insulation is achieved, but manufacturing process becomes complicated and costly
Solution Approach 1:
The patent removes the insulating patterns from the design by arranging sensing series in a non-overlapping configuration. The connection lines are positioned to connect sensing pads without requiring insulation against overlapping sensing series, thereby eliminating the need for additional insulating layers and simplifying the manufacturing process while maintaining electrical insulation through spatial separation
Solution Approach 2:
The patent segments the sensing array into first sensing series and second sensing series that are spatially separated rather than overlapping. The connection lines are divided into first conductive lines and second conductive lines that extend along edges of sensing series, creating a segmented architecture that avoids the need for insulating patterns at overlap points
2Reliability
If multiple processes are used to form sensing array without short circuits, then electrical insulation is ensured, but manufacturing cost increases
Solution Approach 1:
The patent extracts and removes the insulating patterns from the manufacturing process by designing a configuration where sensing series do not overlap. This eliminates the need for additional insulating layers and reduces the number of manufacturing steps required to prevent short circuits, thereby lowering manufacturing cost while maintaining electrical insulation
Solution Approach 2:
The patent merges the insulation function into the structural arrangement itself rather than adding separate insulating layers. The non-overlapping configuration of sensing series and the edge-along positioning of connection lines inherently provide electrical insulation, combining structural design and insulation functions into a single manufacturing process
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 design simplifies the manufacturing process and reduces costs by eliminating the need for insulating layers and overlapping sensing series, while maintaining effective electrical insulation and sensitivity.
Implementation Method 1
Each of the connection lines includes a first conductive line and a second conductive line. Each of the first conductive lines and the corresponding second conductive line respectively extend along a side and another side of the first sensing series, and each of the connection lines is electrically connected to the second sensing pads located at the two opposite sides of the first sensing series.
Implementation Method 2
The first sensing series and the second sensing series are electrically insulated from each other.
Data Source
AI summary
A touch sensing device including a substrate, a plurality of first sensing series separated from each other and a plurality of second sensing series separated from each other is provided. The substrate has a first surface and a second surface. The first sensing series are disposed on the first surface. Each of the first sensing series includes a plurality of first sensing pads connected to each other. The second sensing series are disposed on the first surface. Each of the second sensing series includes a plurality of second sensing pads distributed between the first sensing series and a plurality of connection lines connecting the second sensing pads. Each of the connection lines extends along an edge of one of the first sensing series, and each of the connection lines is electrically connected to the second sensing pads located at two opposite sides of the first sensing series.