Foldable Display Sound Units with Magnetic Fixing
Solution Overview
Problem
Foldable display devices face challenges in maintaining high sound quality regardless of their folded or unfolded state due to restricted positioning of sound generation devices, which affects portability and usability.
Innovation Solution
A foldable display device that employs magnetic fixing members to securely position sound output and vibration output units, ensuring optimal sound quality and maintaining the folded state, with units symmetrically arranged relative to the folding axis and adhered to the display panel using adhesive members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound generation devices are positioned to provide optimal sound quality, then sound quality is improved, but device portability and flexibility are restricted
Solution Approach 1:
The sound generation device transitions from a fixed position to a movable position along the folding axis. The device can be positioned at different locations depending on whether the display is in folded or unfolded state, allowing optimal sound quality in each configuration while maintaining portability flexibility
Solution Approach 2:
The position parameter of the sound generation device is changed based on the folding state. By adjusting the device's location along the folding axis according to whether the display is folded or unfolded, the system achieves optimal sound quality for each state without compromising portability
2Reliability
If sound generation devices are repositioned for different folding states, then sound quality is improved, but device complexity increases
Solution Approach 1:
The sound generation device serves multiple functions by being positioned at different locations for different folding states. The same device structure is used in both folded and unfolded configurations, eliminating the need for separate positioning mechanisms for each state 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 magnetic fixing system enhances sound quality by stabilizing sound output units across different device configurations, improving sound pressure intensity and reducing distortion, while maintaining the device's portability and usability.
Implementation Method 1
a foldable display device that maintains a folded state by fixing a sound output unit and a vibration output unit using a magnetic fixing member
Implementation Method 2
adhered to the display panel using adhesive members
Data Source
AI summary
A foldable display device includes: a display panel including a first area and a second area that are symmetrical with respect to a folding axis; a lower member below the display panel; a first sound output unit on a lower surface of the first area; a first fixing part above the lower surface of the first area and overlapping the first sound output unit in a thickness direction; and a first vibration output unit on a lower surface of the second area, wherein the first fixing part and the first vibration output unit are symmetrical with respect to the folding axis.