Display Panel Vibration for Forward Sound Direction
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Solution Overview
Problem
Conventional display apparatuses face challenges in delivering accurate sound due to interference from reflected sounds, leading to degraded sound quality and reduced immersion experience, as sound output often travels rearward or downward, away from the viewer.
Innovation Solution
A display apparatus with a sound generating module that vibrates the display panel to direct sound forward, integrated within the rear cover to enhance sound quality and appearance, utilizing a modularized structure that includes a vibration device and a module structure to generate stereo sound without external exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sound device is disposed to output sound, then sound can be generated, but sound quality is degraded due to interference from reflected sounds traveling rearward or downward
Solution Approach 1:
The patent inverts the conventional sound output direction by directing sound forward through the display panel rather than allowing it to travel rearward or downward. The sound generating module vibrates the display panel to project sound waves toward the viewer, eliminating the harmful interference from reflected sounds that occurs when sound travels backward.
Solution Approach 2:
The display panel serves dual functions: it displays images and acts as a vibration plate for sound generation. By integrating the sound generating module with the display panel, the system eliminates the need for separate sound devices that would require additional housing and mounting structures, thereby improving sound quality while maintaining a clean design.
2Reliability
If a sound device is integrated into the display apparatus, then sound can be generated, but the rear appearance design is compromised due to exposure of the sound generating module
Solution Approach 1:
The sound generating module is merged with the display panel structure, where the display panel itself serves as the vibration plate. This integration eliminates the need for separate sound device housings that would expose internal components on the rear surface, thereby maintaining a clean and uniform appearance while preserving sound generation capability.
Solution Approach 2:
The display panel performs its own dual function of displaying images and vibrating to generate sound. The sound generating module utilizes the display panel's structure as the vibration plate, eliminating the need for additional separate components that would compromise the rear design appearance.
3Reliability
If a conventional sound device structure is used, then sound can be output, but assembling between the display module and sound generating module becomes complex
Solution Approach 1:
The sound generating module is integrated with the display module structure, where the display panel serves as the vibration plate. This merging eliminates the need for separate mounting structures and complex assembly procedures, as the sound generation function is incorporated within the existing display module framework.
Solution Approach 2:
The system is divided into modular components where the sound generating module can be independently designed and assembled with the display module. The vibration device, module structure, and display panel are segmented into manageable units that can be assembled through standardized interfaces, simplifying the manufacturing process.
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 solution effectively directs sound forward, improving sound quality and immersion by using the display panel as a vibration plate, while maintaining a clean rear design and enhancing production efficiency through simplified assembly.
Implementation Method 1
a sound generating module disposed at the rear cover to vibrate the display module to generate a sound
Implementation Method 2
a vibration device disposed at the module structure to vibrate the display module
Data Source
AI summary
A display apparatus includes a display module including a display panel configured to display an image, a rear cover on a rear surface of the display module, and a sound generating module at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generating module is covered by the rear cover.