Rollable Side-Screen Gestures for Mistouch-Free Volume Control
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Solution Overview
Problem
Rollable display devices lack intuitive and accidental-free methods for adjusting audio output volume due to the absence of fixed control buttons and the risk of involuntary volume adjustments via touch-sensitive displays.
Innovation Solution
A flexible, touch-sensitive display with a predefined multi-touch gesture detection system that adjusts audio output volume based on specific gestures on the curved side screen, such as sliding, pinching, or double-tapping, to provide precise and accidental-free volume control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If physical control buttons are provided on the side surface of the device, then volume control is intuitive and easy to operate, but the side surface must be fixed and cannot be part of the flexible display panel
Solution Approach 1:
The patent replaces physical mechanical buttons with a touch-sensitive interface that detects multi-touch gestures. The controller identifies specific gesture patterns (such as simultaneous touches at predetermined positions) to trigger volume adjustment, eliminating the need for fixed mechanical buttons while maintaining intuitive control on the flexible side surface.
2Ease of operation
If dedicated input regions are provided on the touch-sensitive display panel for volume control, then volume adjustment is accessible, but users may accidentally adjust volume by involuntarily touching the display
Solution Approach 1:
The patent requires a multi-touch gesture with multiple simultaneous touches at specific positions rather than a single touch. This excessive action requirement ensures that accidental single touches during normal display interaction do not trigger volume adjustment, while deliberate multi-touch gestures clearly indicate intentional user input.
Solution Approach 2:
The system provides feedback by requiring a specific gesture pattern (multiple touches at predetermined positions) before activating volume control. This feedback mechanism confirms that the user intends to adjust volume, preventing accidental activation while maintaining ease of use through recognizable gesture patterns.
Data Source
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AI summary
A device and method for detecting a multi-touch gesture (10) for adjusting audio output volume (9) of media content played on a device (1) having a rollable display (4), wherein the multi-touch gesture (10) is a sliding or double-tapping gesture of two fingers detected simultaneously on the curved portion of the display (4) that forms a side screen (5) bent around a roll unit (3); and wherein the multi-touch gesture (10) is only considered valid if the distance (D) or speed (S) of the sliding gesture, and/or the time interval (T) elapsed between tap gestures exceeds a predetermined threshold.