Vibration Control for Foldable Electronic Devices
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Solution Overview
Problem
Flexible electronic devices with oscillators inside face challenges in transmitting vibration energy effectively due to the flexible screen absorbing the energy, making it difficult to sense vibrations externally.
Innovation Solution
A method and device that acquire folding parameters of the flexible screen, such as the number of folds, and adjust the vibration parameters of the vibration driving unit accordingly, ensuring that the vibration energy is not completely absorbed by the screen, allowing it to be sensed externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the oscillator is wrapped in the flexible screen with multiple folding layers, then the electronic device has good flexibility and can be folded freely, but the vibration energy generated by the oscillator is absorbed by the flexible screen and cannot be sensed outside the electronic device
Solution Approach 1:
The patent applies dynamics by making the vibration parameter adjustable based on the folding state. The system transitions from a fixed vibration parameter to a dynamic one that changes according to the number of folding layers, allowing the vibration driving unit to compensate for energy absorption by the flexible screen in folded states.
Solution Approach 2:
The patent changes the vibration parameter (such as vibration frequency or amplitude) based on the folding parameter detected by the folding sensor. This parameter change allows the system to adapt the vibration output to counteract the energy absorption effect of the flexible screen when folded.
2Device complexity
If the vibration parameter is fixed, then the electronic device structure is simple, but the vibration cannot be effectively transmitted when the screen is folded
Solution Approach 1:
The patent implements feedback by using the folding sensor to detect the folding state and feed this information back to the control system. The control system then adjusts the vibration parameter based on this feedback, creating a closed-loop control system that ensures effective vibration transmission regardless of the screen's folding state.
Data Source
AI summary
A method for controlling vibration of an electronic device having a flexible screen and a vibration driving unit, which includes: acquiring a folding parameter of the flexible screen; and adjusting a vibration parameter of the vibration driving unit in the electronic device according to the folding parameter. With the method according to the disclosure, the vibration parameter of the vibration driving unit in the electronic device may be adjusted to different folding states, so that the vibration energy generated by the vibration driving unit could be sensed.