Sound Generating Device with Display-Panel Vibration for Front Audio
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Solution Overview
Problem
Existing display apparatuses face challenges in providing clear sound output without hindering user immersion due to sound traveling away from the front surface, and speakers occupy valuable space, limiting design and disposition.
Innovation Solution
A display apparatus with a sound generating device that vibrates the display panel to direct sound towards the front surface, incorporating a supporting member, a sound generating device with a magnet and coil configuration, and a connection part to connect the supporting member to the sound generating device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a speaker is provided in a set apparatus, then sound output is achieved, but the speaker occupies valuable space and limits design freedom
Solution Approach 1:
The patent merges the sound generating device with the display panel by integrating the vibration generation mechanism directly into the panel structure. The display panel itself serves as the sound output medium, eliminating the need for separate speaker units and thereby reducing overall device volume while maintaining sound output functionality.
Solution Approach 2:
The display panel is designed to serve dual functions: visual display and sound generation. By making the panel itself capable of vibration-based sound output, the invention creates a multi-functional component that replaces both the display and speaker functions, thus saving space and improving design flexibility.
2Device complexity
If sound travels toward the rear surface of the display panel, then the display panel structure is simple, but sound quality is degraded due to interference from reflections
Solution Approach 1:
Instead of having sound travel toward the rear surface as in conventional designs, the patent inverts the sound propagation direction by directing it toward the front surface of the display panel. This reversal eliminates sound quality degradation caused by reflections from walls and floors, as the sound now travels in the intended listening direction from the outset.
3Length of stationary object
If the display panel is made thinner for better design, then aesthetic appearance is improved, but structural strength and vibration capability may be compromised
Solution Approach 1:
The patent employs parameter changes in the vibration generation mechanism to enable effective sound output from thinner panels. By adjusting vibration frequency, amplitude, and distribution patterns, the system achieves sufficient acoustic performance despite reduced panel thickness, allowing both aesthetic and functional requirements to be met.
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
Enhances sound quality by directing sound towards the front surface and reduces space requirements by integrating the sound generating mechanism within the display panel.
Implementation Method 1
a coil outside the bobbin
Implementation Method 2
configured to vibrate the display panel to generate sound
Data Source
AI summary
A sound generating device includes a plate, a frame outside of the plate, a magnet at the plate, a bobbin around the magnet, a coil outside the bobbin, and a connection part connected to the frame. The connection part includes a plurality of first connection parts configured around the frame and connected to the frame, and a second connection part configured around the frame and connected to the plurality of first connection parts. The connection part is configured to vibrate together with a vibration of the frame.