Display Panel Acoustic Integration for Thin, Clear Sound Output
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Solution Overview
Problem
Existing display apparatuses face challenges in delivering clear sound output due to sound interference with walls and floors, leading to deteriorated sound quality and increased thickness when speakers are added.
Innovation Solution
Incorporation of a sound generator between the display panel and a supporting member, with vibration members to enhance sound quality and miniaturization, including vibration transfer and generation members to produce both high-pitched and low-pitched sounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a speaker is added to a display apparatus, then sound output capability is improved, but the thickness of the display apparatus increases
Solution Approach 1:
The patent combines the sound generator with the display panel structure by positioning it between the display panel and supporting member, integrating audio functionality into the existing display framework without requiring separate speaker components, thereby improving sound output while avoiding increased thickness
Solution Approach 2:
The display panel serves multiple functions: it acts as both the visual display surface and the sound generation surface. The vibration members enable the display panel to function as both a light-modulating element and an acoustic radiator, eliminating the need for dedicated speaker components
2Length of stationary object
If sound is generated in the lower or rear portion of the display panel, then device thickness is reduced, but sound quality deteriorates due to interference with walls and floor
Solution Approach 1:
The patent directs sound waves to propagate along the surface of the display panel rather than perpendicular to it, utilizing the panel's front surface as an acoustic radiation surface. This dimensional change in sound propagation direction allows clear sound output without requiring increased device thickness or relying on rear/lower portion sound generation
3Reliability
If vibration members are added to enhance sound quality, then sound output capability is improved, but device complexity increases
Solution Approach 1:
The vibration members are integrated into the existing display panel structure rather than being added as separate external components. The same structural elements that form the display panel also serve as the acoustic radiation surface, combining visual and audio functions within a single integrated structure
Solution Approach 2:
The display panel itself serves as the sound generation element through the incorporation of vibration members, eliminating the need for separate speaker components. The display structure provides its own acoustic radiation capability, making the system self-sufficient for both visual and audio output
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 enhances sound quality by minimizing interference and reduces the thickness of the display apparatus while maintaining sound clarity and immersion.
Implementation Method 1
The vibration transfer member may be configured to transfer a vibration having a high-pitched sound band of the sound generator to the display panel to generate sound
Implementation Method 2
The vibration generation member may be configured to vibrate the display panel to generate sound having a low-pitched sound band of the sound generator
Data Source
AI summary
A display apparatus is disclosed. The display apparatus includes a display panel configured to display an image and a supporting member at a rear surface of the display panel. The display apparatus also includes a sound generator between the display panel and the supporting member, and at least one vibration member between the display panel and the supporting member.