Grip Gesture Recognition on Foldable Screens
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Solution Overview
Problem
Foldable-screen terminals face challenges with single-handed control due to screen expansion, leading to low accuracy in recognizing user gripping postures, as existing methods are not suitable for foldable screens and often misinterpret user gestures.
Innovation Solution
A method involving a foldable screen with a first and second screen, where sensor data from a touch sensor on the side bezel of the first screen and touch parameters from the second screen are used to determine the gripping posture, including single-sided and double-sided gripping, improving recognition accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the screen is expanded to foldable size, then the display area is increased, but the control accuracy with one hand deteriorates
Solution Approach 1:
The patent divides the grip recognition problem into multiple independent detection zones: a first detection area on the first screen and a second detection area on the second screen. Each area independently detects touch gestures, allowing the system to accurately identify grip postures (single-handed or double-handed) on the expanded foldable display without compromising recognition accuracy despite the increased overall display area.
2Device complexity
If existing grip recognition methods are used on foldable screens, then the system structure is simple, but the gesture recognition accuracy deteriorates
Solution Approach 1:
The patent extends the grip recognition approach from a single-screen two-dimensional detection to a multi-screen three-dimensional detection space. By adding the second detection area on the second screen, the system creates a spatial dimension for gesture recognition that accurately captures foldable screen usage patterns, enabling precise distinction between single-handed and double-handed grips while maintaining reasonable system complexity.
3Adaptability or versatility
If the screen is unfolded to expand terminal screens, then the screen expansion function is achieved, but the single-handed control range deteriorates
Solution Approach 1:
The patent implements feedback by continuously monitoring touch gestures in both the first and second detection areas and using this information to dynamically adjust the user interface. The system provides feedback about detected grip postures and adapts the interface layout and control element positioning accordingly, enabling effective single-handed operation on the expanded foldable screen by reorganizing controls within reachable areas based on real-time grip detection.
Data Source
AI summary
A method for recognizing gripping posture includes: obtaining first sensor data of a touch sensor arranged on a side bezel of a first screen of a terminal fold able screen, obtaining a touch parameter of a second screen of the terminal fold able screen, and determining a gripping posture of the terminal according to the first sensor data and the touch parameter, where the gripping posture includes single-sided gripping on first side, single-sided gripping on second side or double-sided gripping.