Touch Display Panel With Piezoelectric Vibration Feedback
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Solution Overview
Problem
Existing touch display devices lack feedback to users during touch operations, providing an unengaging experience as they feel their finger sliding on a smooth surface without tactile sensation.
Innovation Solution
A touch display panel with a touch display module, touch feedback electrodes, and controllers that generate drive signals to provide vibration feedback based on touch position and texture level, enhancing user experience by simulating tactile sensations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a smooth surface is used for the touch display, then ease of operation is improved, but tactile feedback is lost
Solution Approach 1:
The patent applies mechanical vibration by driving piezoelectric elements to vibrate in response to touch input, generating tactile feedback through controlled vibrations that simulate different surface textures while maintaining a smooth physical surface for easy operation
Solution Approach 2:
The system implements feedback by detecting touch position and texture level, then generating corresponding vibrations through piezoelectric elements to provide realistic tactile sensation that matches the displayed image content, resolving the loss of tactile information
2Loss of information
If vibration feedback is added to provide tactile sensation, then tactile feedback is improved, but device complexity increases
Solution Approach 1:
The patent uses thin film piezoelectric elements that can be integrated into the display structure without significantly increasing device complexity, allowing vibration feedback to be generated within the existing form factor
Solution Approach 2:
The patent introduces piezoelectric elements as intermediary components between the touch display and the user's finger, converting electrical signals to mechanical vibrations to provide tactile feedback without requiring complex mechanical structures
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 solution provides a realistic tactile feedback to users during touch operations, improving the user experience by matching vibration intensity with the texture level of the displayed image, thus enhancing engagement and interaction.
Implementation Method 1
Each of the plurality of touch feedback electrodes is operable to vibrate in response to a drive signal applied thereto
Data Source
AI summary
A touch display panel includes a touch display module, a plurality of touch feedback electrodes, and a first controller. Each of the plurality of touch feedback electrodes is operable to vibrate in response to a drive signal applied thereto, thereby providing touch feedback. The first controller is configured to generate and provide the drive signal to at least one of the plurality of touch feedback electrodes corresponding to a touch position.