Touch Substrate Conductive Bridges for Static Discharge
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Solution Overview
Problem
In touch panels using FMLOC technology, static electricity accumulation on receiving electrodes can interfere with signal quality due to the lack of bridging structures on these electrodes.
Innovation Solution
The touch substrate incorporates conductive bridges on both transmitting and receiving electrodes, with specific configurations to ensure electrical connections at intersection areas and reduce static discharge, including the formation of conductive bridges on the insulating layer to connect bridging areas exposed by via holes, thereby suppressing static electricity accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive bridges are added to receiving electrodes to suppress static electricity, then signal quality is improved, but device complexity increases
Solution Approach 1:
The receiving electrode is segmented into multiple body segments with conductive bridges connecting adjacent segments at intersection areas. This segmentation allows static electricity to be discharged through specific bridging areas while maintaining the electrode's overall functionality and reducing signal interference.
Solution Approach 2:
Conductive bridges are selectively added only at intersection areas where receiving electrodes cross transmitting electrodes, rather than uniformly across the entire electrode structure. This local application suppresses static electricity at critical points while minimizing additional structural complexity.
2Reliability
If conductive bridges are arranged to connect bridging areas at intersection areas, then static electricity is suppressed, but manufacturing precision requirements increase
Solution Approach 1:
The insulating layer is pre-formed with via holes positioned at specific locations before the conductive bridges are added. This preliminary arrangement of via holes guides the subsequent formation of conductive bridges, ensuring they connect to the correct bridging areas of the electrode segments.
Solution Approach 2:
The insulating layer with via holes acts as an intermediary structure that facilitates the connection between adjacent electrode segments. The via holes expose bridging areas that serve as connection points, making the manufacturing process more controlled and precise.
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
The solution effectively suppresses static electricity on receiving electrodes, enhancing signal quality by ensuring electrical connections and reducing electro-static discharge, without increasing structural complexity.
Implementation Method 1
a part of each first conductive bridge is arranged on a side of the insulating layer away from the base substrate... the each first conductive bridge is configured to electrically connect a pair of first bridging areas exposed by the pair of first via holes
Data Source
AI summary
A touch substrate and a method for manufacturing the same, and a display device are provided. The touch substrate includes: a base substrate; a plurality of first electrodes including body segments arranged in an electrode pattern layer; a plurality of second electrodes including body segments arranged in the electrode pattern layer, wherein the first electrodes and the second electrodes intersect at intersection areas on the touch substrate; and an insulating layer arranged on a side of the electrode pattern layer away from the base substrate and provided with first via holes and second via holes; wherein each first electrode includes a first conductive bridge, each second electrode includes a second conductive bridge, and in an intersection area, two adjacent body segments of a first electrode are electrically connected through the first conductive bridge, and/or two adjacent body segments of a second electrode are electrically connected through the second conductive bridge.