Metal Vibration Reflector for Display Panel Bass Response
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Solution Overview
Problem
Existing display apparatuses face challenges in delivering clear sound output due to interference from walls and grounds, leading to degraded sound quality and reduced viewer immersion.
Innovation Solution
A display apparatus with a vibration generation module on the rear surface of the display panel, comprising a vibration element and a vibration reflecting member, which vibrates the panel to output sound directly to the front, enhancing sound quality by amplifying vibration energy and improving low-pitched sound band characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If sound is output from a sound device in general display apparatuses, then sound is transmitted to the viewer, but sound quality is degraded due to interference between sounds reflected from wall and ground
Solution Approach 1:
The invention extracts the sound generation function from a separate sound device and integrates it directly into the display panel by using the display panel itself as the vibration element. This eliminates the need for additional sound output structures that would require space behind the display, thereby avoiding sound interference from wall and ground reflections while maintaining clear sound transmission to the viewer.
Solution Approach 2:
The display panel serves dual functions: displaying images and generating sound. By making the display panel itself the vibration element, the invention combines the display function and sound generation function into a single component, eliminating the need for separate sound devices and their associated spatial requirements that lead to sound interference.
2Object-affected harmful factors
If a vibration element is placed on the rear surface of the display panel, then sound is output to the front region, but low-pitched sound band characteristics are insufficient
Solution Approach 1:
The invention uses mechanical vibration of the display panel itself to generate sound. By applying vibration to the display panel, sound waves are produced that propagate to the front region, improving sound output direction. The vibration characteristics are optimized to enhance low-pitched sound band performance.
Solution Approach 2:
The invention optimizes the vibration parameters (frequency, amplitude, distribution) of the display panel to improve low-pitched sound band characteristics. By carefully controlling the vibration parameters, the system achieves better bass response and overall low-frequency sound quality while maintaining sound output to the front region.
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 apparatus improves sound pressure and frequency characteristics, particularly in low-pitched sound bands, by reflecting and amplifying vibration energy, resulting in enhanced sound output and increased viewer immersion.
Implementation Method 1
a vibration generation module configured to vibrate the display panel
Implementation Method 2
a vibration reflecting member on the rear surface of the display panel and spaced apart from the vibration element
Data Source
AI summary
An apparatus for outputting sound includes a vibration plate, a vibration element at a rear surface of the vibration plate, and a vibration reflecting member spaced apart from the vibration element to face a lateral surface of the vibration element. The vibration reflecting member includes a metal material.