Deformable Display Hinge Coordinate Correction for Digital Pens
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Solution Overview
Problem
In foldable electronic devices, inputs using a digital pen in the hinge area of a deformable display can lead to errors due to differing physical curvatures and shapes, affecting input tracking accuracy.
Innovation Solution
The electronic device includes a processor that detects input movements with a digital pen, identifies if the input occurs in a hinge area, corrects the input coordinates based on intensity and hovering positions, and adjusts the input position accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a digital pen input is used on a deformable display, then the display can receive touch inputs and perform operations, but input tracking accuracy deteriorates in the hinge area due to different physical curvature and shape
Solution Approach 1:
The patent applies local quality by implementing different coordinate correction strategies for different areas of the display. The hinge area, which has different physical curvature, receives specialized coordinate correction based on its unique characteristics, while other areas use standard coordinate systems. This allows the display to maintain input accuracy locally in the deformable hinge region while preserving overall touch input capability across the entire display surface.
2Adaptability or versatility
If the display is made foldable to diversify device shapes, then adaptability improves, but input tracking accuracy deteriorates in the hinge area
Solution Approach 1:
The patent implements dynamics by making the coordinate system adaptive and changeable based on the display's folding state. When the display is folded, the hinge area's coordinate coordinates are dynamically corrected according to the actual folding curvature and position. This dynamic coordinate adjustment allows the device to maintain input tracking accuracy across different folding configurations and device shapes, resolving the contradiction between shape versatility and input precision.
3Measurement precision
If coordinate correction is applied to hinge area inputs, then input tracking accuracy improves, but device complexity increases due to additional detection and correction processes
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing coordinate correction values for the hinge area before actual input occurs. The system pre-establishes the relationship between physical hinge positions and coordinate system deviations, so when a digital pen input is detected in the hinge area, the correction can be applied immediately using pre-computed values. This approach improves input accuracy while minimizing real-time processing complexity.
Data Source
AI summary
An electronic device includes a display and a processor. The processor detects movement of an input using a digital pen on the display, determines whether the movement of the input using the digital pen occurs in a hinge area of the display, and determines whether the input using the digital pen needs correcting when it is determined that the movement occurs in the hinge area. The processor identifies an intensity of the input using the digital pen when it is determined that the input needs correcting, identifies a position of the input using the digital pen and a position at which hovering about the input occurs, and corrects a coordinate of the input by using the coordinate of the input of which the intensity is identified and a coordinate of the position at which the hovering occurs.