Touch Panel Inspection Tool With Segmented Contact Points
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Solution Overview
Problem
Existing touch panel inspection methods are inefficient and prone to false detection due to simultaneous contact between a stylus and palm during writing operations, particularly in electromagnetic touch technology.
Innovation Solution
An inspection tool with a substrate and protrusions arranged along an inspection trajectory is used, where the stylus moves to generate distinct signals at defined inspection points, allowing efficient detection of sensing channel functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic touch technology is used with a stylus, then false detection caused by palm contact is eliminated, but inspection efficiency decreases due to simultaneous contact between stylus and palm during writing operations
Solution Approach 1:
The inspection tool divides the inspection trajectory into multiple discrete inspection points using protrusions. Each protrusion corresponds to a specific inspection point, segmenting the continuous writing motion into discrete detectable events. This segmentation allows the system to distinguish between intentional stylus contacts at inspection points and unintentional palm contacts, resolving the contradiction between detection accuracy and inspection efficiency.
2Ease of operation
If manual writing inspection is performed, then flexibility is maintained, but inspection precision decreases due to difficulty in identifying valid inspection points
Solution Approach 1:
The protrusions on the substrate serve as an intermediary between the stylus and the touch panel. They physically guide the stylus to precise inspection points and provide tactile feedback to the operator. This intermediary mechanism maintains the flexibility of manual operation while significantly improving inspection precision by eliminating uncertainty about where valid inspection points are located.
Data Source
AI summary
Provided is an inspection tool for a touch panel, including a substrate adapted to be placed on the touch panel and multiple protrusions disposed on the substrate in correspondence to multiple touch inspection points and arranged along an inspection trajectory. An inspection method for a touch panel is also provided.