Touch Sensing Display Panel Segmented Sub-Sensing Series
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Solution Overview
Problem
Capacitive touch sensing display panels face issues with low yield and damage due to electrostatic discharge during manufacturing and usage, leading to broken sensing series and increased waste.
Innovation Solution
The implementation of a touch sensing panel design with intersecting sub-sensing series and conductive branches, which are arranged in mesh structures and connected via sensing signal transmission lines, reducing the likelihood of signal disruption and enhancing electrostatic discharge protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sensing series are used without sub-division, then the structure is simple, but the reliability is low due to electrostatic discharge and manufacturing defects
Solution Approach 1:
The sensing series are divided into multiple sub-sensing series (first sub-sensing series and second sub-sensing series) that are electrically connected through conductive branches. This segmentation ensures that if one sub-sensing series is damaged due to electrostatic discharge or manufacturing defects, the signal can still be transmitted through alternative paths, thereby improving reliability without requiring complete redesign of the sensing circuit.
2Productivity
If single-layer sensing series are used, then the manufacturing process is simple, but the yield is low due to electrostatic discharge damage
Solution Approach 1:
The sensing series are segmented into multiple sub-sensing series connected by conductive branches, creating redundant pathways. This segmentation increases manufacturing yield because if one path is damaged during fabrication or usage, alternative paths can compensate, reducing the impact of electrostatic discharge and fabrication defects.
Solution Approach 2:
The conductive branches are pre-configured to connect multiple sub-sensing series, creating a protective network before electrostatic discharge or manufacturing defects occur. This beforehand cushioning ensures that potential damage to one sensing path does not cripple the entire sensing system, thereby improving overall yield.
3Object-affected harmful factors
If traditional sensing series without conductive branches are used, then the structure is simple, but the resistance to electrostatic discharge is insufficient
Solution Approach 1:
The sensing series are divided into multiple sub-sensing series connected by conductive branches, creating a distributed protective network. This segmentation provides multiple pathways for electrostatic discharge to dissipate, reducing the risk of damage to any single sensing element and improving overall electrostatic discharge protection.
Data Source
AI summary
A touch-sensing display panel including a display panel and a touch-sensing unit is provided. The touch-sensing unit includes a plurality of first sensing series, a plurality of second sensing series and a plurality of sensing signal transmission lines. Each of the first sensing series includes a plurality of first sub-sensing series and a plurality of first conductive branches connected with the first sub-sensing series. Each of the second sensing series includes a plurality of second sub-sensing series and a plurality of second conductive branches connected with the second sub-sensing series. The first sensing series and the second sensing series are intersected. Further, each one of the first sensing series and each one of the second sensing series is electrically connected to one of the sensing signal transmission lines, respectively.