Vehicle Display Lateral Vibration Haptic Feedback
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Solution Overview
Problem
Conventional haptic feedback systems using perpendicular vibration in vehicle displays often cause unpleasant tactile sensations due to repeated skin contact and electric shock-like feelings.
Innovation Solution
A display apparatus utilizing a lateral vibration type suspension bracket with a leaf spring structure, incorporating magnetic parts and coils to generate lateral vibration, providing a more natural and convenient haptic feedback experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If perpendicular vibration is used for haptic feedback, then vibration stimulation is generated, but unpleasant tactile sensation and electric shock-like feeling occur
Solution Approach 1:
The patent inverts the conventional perpendicular vibration approach by implementing lateral vibration through the suspension bracket. Instead of vibrating the display module perpendicular to the screen surface, the magnetic part and coil generate lateral vibration that moves the floating panel horizontally, providing natural tactile feedback without electric shock sensations.
Solution Approach 2:
The patent replaces the conventional mechanical perpendicular vibration mechanism with an electromagnetic system consisting of a magnetic part and coil. This electromagnetic mechanism generates lateral vibration forces that act on the floating panel through the suspension bracket, achieving haptic feedback without the harmful effects of traditional mechanical perpendicular vibration.
2Reliability
If conventional suspension spring and actuator are used separately, then haptic function is achieved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent merges the suspension spring and actuator functions into a single integrated structure. The suspension bracket incorporates both the spring element for mechanical support and the magnetic part with coil for actuation, eliminating the need for separate components and reducing assembly complexity while maintaining reliable haptic functionality.
Solution Approach 2:
The suspension bracket is designed as a multi-functional component that simultaneously provides mechanical suspension, structural support, and haptic actuation. The magnetic part and coil are integrated into the bracket structure, allowing it to serve as both a structural element and an actuator, thereby 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 system enables fast reaction speed and adjustable vibration patterns, reducing the unpleasant sensations associated with perpendicular vibration while integrating the functions of conventional suspension springs and actuators, simplifying assembly and facilitating desired haptic output control.
Implementation Method 1
Magnetic parts and coils may be disposed at a connection area between the suspension brackets and the LCD bracket, and the magnetic parts and the coils may generate lateral vibration
Data Source
AI summary
A display apparatus for a vehicle according to one embodiment of the present invention includes a display module, a floating panel positioned on a surface of the display module, a pair of suspension brackets which are connected to a rear side of the floating panel with a gap therebetween, and a liquid crystal display (LCD) bracket of which both ends are connected to and surrounded by the pair of suspension brackets.