Tactile Feedback Apparatus for Touch Panel Interaction
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Solution Overview
Problem
Touch panel interactions lack realistic tactile feedback, relying solely on visual responses without providing a sensory reaction when a user interacts with the screen.
Innovation Solution
A tactile feedback apparatus comprising a signal generator and a tactile feedback structure that generates a tactile feedback signal through electrical properties, creating an action force when an object surface is touched, simulating sensations like roughness by varying the action force based on the driving signal's characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch panel interaction is used, then ease of operation is improved, but tactile feedback is lost
Solution Approach 1:
The patent applies mechanical vibration by driving a vibration element to generate tactile feedback signals that simulate surface textures. The vibration element produces vibrations corresponding to different surface characteristics (e.g., rough, smooth, concave-convex), providing realistic tactile sensation during touch panel interaction without compromising ease of operation.
Solution Approach 2:
The patent changes vibration parameters (frequency, amplitude, waveform) to simulate different surface textures. By adjusting these parameters dynamically based on the virtual surface being interacted with, the system provides appropriate tactile feedback for different operational contexts, maintaining both ease of operation and tactile realism.
2Object-generated harmful factors
If tactile feedback structure is added, then tactile sensation is improved, but device complexity increases
Solution Approach 1:
The patent merges the tactile feedback structure with the touch panel assembly, integrating the vibration element into the existing device architecture. This combination approach provides tactile feedback functionality while minimizing additional complexity by sharing structural components and control systems with the touch panel.
Solution Approach 2:
The patent employs a flexible vibration transmission structure that can be integrated into the touch panel surface. This flexible membrane or film structure allows vibration transmission while maintaining the thin-profile design, avoiding bulky mechanical components and reducing overall device 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
The apparatus provides users with a tactile sensation similar to concave-convex changes on the object surface, enhancing the interaction experience by offering a sensory feedback that mimics real-world surface interactions.
Implementation Method 1
generates an action force together with the object surface due to electrical fields
Data Source
AI summary
A tactile feedback apparatus is provided, which includes a signal generator and a tactile feedback structure. The signal generator provides a driving signal. The tactile feedback structure is connected to the signal generator and provides a tactile feedback signal in response to the driving signal when an object surface is touched or a housing of the tactile feedback apparatus is touched. The tactile feedback signal is related to a tactile sensation. The tactile feedback signal is related to an electrical property of the driving signal.