Touch Panel Vibration Control for Multi-Finger Tactile Feedback
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Solution Overview
Problem
Conventional electronic devices with touch panels cannot provide a realistic control feel for complex operations, such as using multiple fingers, as they only generate vibrations for simple touch operations.
Innovation Solution
An electronic device with a touch panel, a vibrating section, and a vibration control section that changes the vibration pattern when a user lifts one finger off the panel while others remain on, simulating the tactile sensation of complex operations by adjusting vibration amplitude, frequency, or pattern based on finger movement and position changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vibration is generated for simple touch operations, then tactile feedback is provided to the user, but realistic control feel for complex multi-finger operations cannot be achieved
Solution Approach 1:
The vibration control section dynamically changes vibration patterns based on touch operation types. When multi-finger operations are detected, the system adjusts vibration amplitude, frequency, or waveform differently from single-finger operations, providing context-appropriate tactile feedback that matches the complexity of the user's input
2Adaptability or versatility
If vibration amplitude and frequency are increased for complex operations, then realistic control feel is achieved, but energy consumption increases
Solution Approach 1:
The system changes vibration parameters (amplitude, frequency, waveform) based on the detected touch operation type. For multi-finger operations, specific parameter combinations are applied to create realistic control feel, while single-finger operations use lower-energy vibration patterns, optimizing energy consumption according to operational complexity
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
This approach allows users to experience a realistic control feel during multi-finger operations by dynamically varying the touch panel's vibrations, enhancing the tactile feedback and operational recognition.
Implementation Method 1
A voltage is applied to a piezoelectric element fixed to the touch panel so as to generate vibrations to the touch panel
Data Source
AI summary
An electronic device presents, to the user, a realistic control feel in response to a complicated operation such as an operation using multiple fingers. An electronic device 10 includes a touch panel 11 to be touched by the user, a vibrating section 13 for vibrating the touch panel 11, and a vibration control section 33 for controlling the vibration of the vibrating section 13. The vibration control section 33 changes the vibration of the vibrating section 13 when, after the user touches the touch panel 11 with multiple fingers, the user lifts at least one of the multiple fingers off the touch panel 11 with at least one other of the multiple fingers remaining on the touch panel 11.