Display Panel Sound Generation via Partitioned Vibration Control
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Solution Overview
Problem
Conventional display apparatuses face challenges in directing sound output towards the viewer, resulting in inferior sound quality due to sound waves being directed rearward or downward, and the physical presence of separate speakers limits design and space in devices like TVs.
Innovation Solution
A display apparatus with a sound generating device attached to the rear surface of the display panel, utilizing a supporting member and partitions with varying compression force deflections or densities to direct sound waves forward, eliminating the need for separate speakers and enhancing sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a separate speaker is installed in a display apparatus, then sound can be provided, but the sound travels toward the rear surface or under the display panel instead of toward the viewer, degrading sound quality
Solution Approach 1:
The patent combines the sound generating device with the display panel by attaching it to the rear surface, making the display panel itself serve as the sound output medium. This eliminates the need for separate speakers and directs sound toward the viewer through the panel's vibration.
Solution Approach 2:
The display panel serves dual functions: visual display and sound generation. By making the panel capable of both displaying images and emitting sound through vibration, the invention eliminates the need for dedicated speaker components.
2Ease of manufacture
If a separate speaker is installed in a display apparatus, then sound can be provided, but the speaker occupies space and limits design and space disposition flexibility
Solution Approach 1:
The sound generating device is merged with the display panel structure, eliminating separate speaker components and freeing up internal space for other design considerations.
Solution Approach 2:
The display panel performs both visual and audio functions, reducing the overall component count and simplifying the device structure while improving design flexibility.
3Ease of manufacture
If a sound generating device is attached to the rear surface of the display panel, then sound can be generated, but vibrations may mutually overlap in specific areas causing excessively high or low vibration, degrading sound quality
Solution Approach 1:
The rear surface of the display panel is divided into multiple vibration regions with different vibration characteristics. By segmenting the vibration areas and controlling their respective vibrations, the patent prevents harmful vibration overlap and maintains uniform sound quality across the panel.
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 waves towards the viewer, improving sound quality and offering greater design flexibility by integrating sound generation into the display panel, thus enhancing user immersion and reducing physical constraints.
Implementation Method 1
a sound generating device for generating sound by vibrating the display panel
Implementation Method 2
a plurality of partitions at a predetermined interval from the sound generating device, wherein the partitions have different compression force deflections
Data Source
AI summary
Disclosed is a display apparatus that may include a display panel configured to display an image by emitting light, a supporting member disposed on a rear surface of the display panel, a sound generating device disposed between the supporting member and the display panel, and a plurality of partitions at a predetermined interval from the sound generating device, wherein the partitions have different compression force deflections.