Touch Screen Panel Wiring Arrangement for Narrow Border
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Solution Overview
Problem
The increasing number of touch control electrodes in touch screen panels leads to a larger border area due to the arrangement of peripheral wirings, which hinders the design of a narrow border.
Innovation Solution
The wirings connected to the touch control electrodes are rearranged to be located within gaps between the electrodes, rather than in the border area, and are insulated by isolation lines to prevent interference, allowing for a more compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of touch control electrodes is increased to improve accuracy, then measurement precision is improved, but the border area increases due to more wirings
Solution Approach 1:
The patent relocates the wirings from the border area (two-dimensional plane outside touch control area) into the gaps between electrodes within the touch control area itself. This dimensional reorganization allows wirings to be positioned in previously underutilized spaces, reducing border area while maintaining the increased number of electrodes for high accuracy.
Solution Approach 2:
The wirings are nested within the gaps formed by adjacent touch control electrodes. Instead of placing wirings externally in the border area, they are embedded in the inter-electrode spaces, effectively nesting the wiring structure within the electrode array structure to minimize overall border requirements.
2Ease of manufacture
If wirings are arranged in the border area to connect touch control electrodes, then ease of manufacture is improved, but the border area increases
Solution Approach 1:
The patent segments the wiring arrangement into two types: first wirings connected to first touch control electrodes and second wirings connected to second touch control electrodes. These are arranged in different gaps between electrodes, allowing independent optimization of each wiring path and simplifying the manufacturing process while reducing border area.
Solution Approach 2:
By moving wirings from the border region to the internal gap regions between electrodes, the patent utilizes previously unused spatial dimensions within the touch control area, thereby reducing border area without complicating the wiring arrangement process.
3Area of stationary object
If wirings are placed close to touch control electrodes to reduce border area, then area is reduced, but mutual interference occurs
Solution Approach 1:
The patent introduces isolation lines as intermediary structures between the wirings and touch control electrodes. These isolation lines act as mediators that prevent direct electromagnetic coupling and interference between adjacent electrodes and wirings, allowing close positioning while eliminating harmful interference effects.
Solution Approach 2:
The harmful electromagnetic field or signal interference is extracted or blocked by the isolation lines positioned between wirings and electrodes. The isolation lines remove or prevent the harmful interaction while allowing the wiring to remain close to electrodes for compact design.
Data Source
AI summary
This disclosure provides a touch screen panel, comprising: a plurality of first touch control electrodes extending in a first direction; a plurality of second touch control electrodes extending in a second direction intersecting with the first direction; a plurality of first wirings, one end of each first wiring being connected to a corresponding first touch control electrode, and the other end of each first wiring being connected to an integrated circuit, wherein each first wiring is located within a gap formed by the corresponding first touch control electrode and the adjacent second touch control electrode and extends along the second direction.