Touch Panel Sensor Grouping for Initial Point Correction
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Solution Overview
Problem
The integration of pressure sensors in touch panels leads to the detection of initial touch points that do not exist, affecting accuracy and causing slowed response speed and increased memory usage due to the need for extensive data processing and storage.
Innovation Solution
Classifying sensors into groups with sequential serial numbers and configuring data structures to record and filter out initial touch points, reducing memory usage and processing time by organizing detected points into headers and data structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detecting mechanisms are used to locate initial touch points, then accuracy is improved, but response speed is severely slowed and memory space is occupied
Solution Approach 1:
The patent segments the large set of pressure sensors into multiple groups, with each group managed by a dedicated detecting mechanism. This segmentation allows parallel processing of initial touch point detection across different sensor groups, significantly improving response speed while maintaining accuracy. The system no longer needs to process all sensors sequentially, but can simultaneously detect initial touch points in multiple segments.
Solution Approach 2:
The patent implements preliminary detection of initial touch points during the manufacturing process or before actual touch input begins. By identifying and recording initial touch points in advance, the system can filter them out during normal operation without requiring real-time processing, thus maintaining both accuracy and fast response speed.
2Measurement precision
If detecting mechanisms are used to locate initial touch points, then accuracy is improved, but memory space is occupied
Solution Approach 1:
The patent extracts only the essential information needed for accuracy - the locations of initial touch points - and stores them in a compact format. Rather than storing complete sensor state data for all sensors, the system only records initial touch point coordinates, significantly reducing memory consumption while maintaining detection accuracy.
Solution Approach 2:
Initial touch points are detected and recorded during manufacturing or system initialization before actual use. This preliminary action allows the system to store minimal data (just the initial touch point locations) rather than requiring memory for continuous monitoring of all sensors during operation.
3Ease of manufacture
If pressure sensors are embedded into touch panel, then cost is lowered and size is reduced, but initial touch points are detected that do not exist
Solution Approach 1:
The patent converts the harmful effect of component characteristic drift that causes false initial touch points into a beneficial detection target. By specifically designing detection mechanisms to identify and flag these initial touch points, the system transforms manufacturing imperfections into detectable patterns that can be filtered out, maintaining accuracy while keeping the cost-effective embedded sensor architecture.
Solution Approach 2:
The system performs preliminary detection and recording of initial touch points during manufacturing or initialization. This allows the embedded sensors to operate as designed (maintaining low cost and small size) while the preliminary detection phase identifies and catalogs the false touch points caused by sensor drift, enabling their subsequent filtering without affecting normal touch detection accuracy.
Data Source
AI summary
While correcting and recording initial touch points on a touch panel, a plurality of sensors on the touch panel are classified into a plurality of first sensing groups assigned with serial numbers, and a plurality of sensors of each the first sensing group are equally divided into a plurality of second sensing groups assigned with serial numbers. After detecting initial touch points on the touch panel, a plurality of headers are generated for the plurality of first sensing groups, and a data structure is generated for each of the sensors having detected initial touch points according to whether first sensing groups corresponding to the headers have the sensors having the detected initial touch points or not. At last, the initial touch points are filtered off from a plurality of detected touch points on the touch panel, according to initial touch point information recorded in loaded data structures.