Dual-Support Haptic Module for Large Touchscreen Vibration Stability
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Solution Overview
Problem
Existing haptic feedback technologies for vehicle-mounted touchscreen displays face challenges in providing stable and reliable haptic feedback due to the large size and mass of the display, leading to vibration attenuation and instability, which affects driving safety and interaction effectiveness.
Innovation Solution
A haptic feedback module design that includes a touch control module, a bottom plate, and an actuator connected through separate supporting portions to improve stability and reliability, allowing for effective haptic feedback on the touch control face, even with large displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional haptic feedback structure is used with large vehicle-mounted touchscreen displays, then the display size increases, but the haptic feedback stability and reliability deteriorate due to vibration attenuation
Solution Approach 1:
The patent divides the haptic feedback structure into multiple independent components: a first supporting portion connecting the actuator to the touch control module, and a second supporting portion connecting the actuator to the bottom plate. This segmentation allows each component to be optimized independently for vibration transmission, solving the reliability issue while maintaining large display area
Solution Approach 2:
The patent introduces a dual-support structure that provides haptic feedback support from two different directions/dimensions: one support from the touch control module side and another from the bottom plate side. This multi-dimensional support system enhances vibration transmission stability across large display areas
2Area of stationary object
If the display mass increases for larger screens, then the display area increases, but the vibration transmission effectiveness decreases
Solution Approach 1:
The dual supporting portion structure acts as a counterbalancing system that compensates for the increased mass of large displays. By providing support from both the touch control module and bottom plate, the system counteracts the vibration attenuation caused by display mass, maintaining effective force transmission
3Device complexity
If a simplified support structure is used, then the device complexity decreases, but the haptic feedback stability deteriorates
Solution Approach 1:
The patent segments the support function into two distinct supporting portions with different connection points, allowing each to be relatively simple in design while collectively providing enhanced stability. This segmented approach achieves high stability without requiring an overly complex integrated structure
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 design enhances the stability and reliability of haptic feedback, improving driving safety and interaction effectiveness by ensuring consistent and robust vibration transmission, even with large and heavy displays.
Implementation Method 1
the actuator is used for driving the touch control module to vibrate in response to a driving signal
Data Source
AI summary
A haptic feedback module and a haptic feedback device relate to the technical field of electronics. The haptic feedback module includes: a touch control module having a touch control face; a bottom plate disposed on one side of the touch control module facing away from the touch control face; and an actuator disposed between the touch control module and the bottom plate, wherein the actuator is connected to the touch control module through a first supporting portion, the actuator is connected to the bottom plate through a second supporting portion, and the actuator is used for driving the touch control module to vibrate in response to a driving signal, so as to form haptic feedback on the touch control face.