Touch Screen Node Range Adjustment for Bending Error Prevention
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Solution Overview
Problem
Single layer touch input electronic devices often experience touch input errors due to bending of the touch screen panel, leading to unintended touch detection.
Innovation Solution
Implementing a method that determines whether preset node range and touch intensity conditions are met, skipping the reading of coordinates outside these conditions to prevent errors, thereby enhancing user convenience and reducing false touch inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single layer type touch input is used, then transmittance is improved and power consumption is reduced, but touch malfunction frequently occurs due to bending of the touch screen panel
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the node range reading based on touch intensity thresholds. When touch intensity exceeds the threshold (indicating bending), the system changes the parameter of node range from full coverage to restricted area, thereby preventing false touch detections while maintaining accurate touch input recognition under normal conditions
Solution Approach 2:
The system implements feedback by continuously monitoring touch intensity and using this information to control the node range reading process. The feedback loop detects bending conditions through intensity threshold comparison and adjusts the coordinate reading scope accordingly, creating a self-regulating mechanism that maintains touch accuracy despite panel bending
2Measurement precision
If the entire touch screen area is read for coordinates, then touch detection coverage is maximized, but false touch inputs are detected due to bending-induced mutual capacitance changes outside the touched area
Solution Approach 1:
The patent applies partial action by reading coordinates only from specific node ranges rather than the entire touch screen area. When bending is detected through intensity threshold comparison, the system limits coordinate reading to only the affected area, avoiding unnecessary readings in unaffected regions and thereby preventing false touch inputs from being processed
3Speed
If coordinate reading is performed for all areas, then touch input responsiveness is maintained, but processing time increases due to reading coordinates outside the preset node range
Solution Approach 1:
The system implements dynamics by making the coordinate reading range adjustable based on real-time touch intensity conditions. The node range is dynamically expanded or restricted according to whether the touch intensity exceeds the preset threshold, allowing the system to optimize processing time by reading only necessary coordinates while maintaining responsiveness when needed
Data Source
AI summary
A method of operating an electronic device is provided. The method includes determining whether a preset node range condition and a preset touch intensity condition are met, and skipping reading the coordinates of an area outside a preset node range if the preset node range condition and the preset touch intensity condition are not met.