Adjacent Touchscreen Tracking Across Hinges and Screen Gaps
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Solution Overview
Problem
Touch operations across the boundary between separate or hinged capacitive touch screens often result in anomalies and undesirable results, such as failed drag operations, due to discontinuous touch detection and sensitivity issues at hinge areas.
Innovation Solution
Implementing a method that uses a relaxed threshold for capacitive sensor data analysis to track continuous touch events by predicting the location of the touch event on adjacent screens, allowing for hover detection and accounting for gaps or discontinuities, and discouraging hard presses on sensitive hinge areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a strict threshold is used for capacitive sensor data analysis, then measurement precision is improved, but touch event detection reliability deteriorates at hinge areas and screen boundaries
Solution Approach 1:
The patent applies different threshold values for capacitive sensor data analysis depending on the location on the touch screen. A first (stricter) threshold is used for normal screen areas to maintain measurement precision, while a second (relaxed) threshold is used for hinge areas and screen boundaries to improve touch event detection reliability in these problematic regions.
2Stability of the object's composition
If continuous touch tracking is enforced across screen boundaries, then drag operation continuity is improved, but false touch detections increase due to hover artifacts
Solution Approach 1:
The patent dynamically adjusts the threshold for capacitive sensor data analysis based on the detected touch event characteristics and location. When a touch event is detected in a hinge area or near screen boundaries, the system relaxes the threshold to maintain continuous drag operation tracking, while applying stricter thresholds in normal areas to avoid false detections from hover artifacts.
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
Enables seamless tracking of continuous touch events across adjacent screens, reducing the likelihood of failed drag operations and preventing damage to sensitive hinge areas by using a relaxed threshold for capacitive sensor data analysis.
Implementation Method 1
tracking, through a first capacitive touch surface, a continuous touch event
Data Source
AI summary
Methods and devices for tracking continuous touch events, such as drag operations, across adjacent capacitive touch surfaces. The adjacent capacitive touch surfaces may include a foldable touch screen having a hinged area between the two capacitive touch surfaces. The adjacent capacitive touch surfaces may include separate touch screens separated by a gap. The methods and devices may enable hover detection, predictive continuation of a touch operation, and simultaneous touch resolution.