Closed-Loop Display Panel Vibration Sound Direction
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Solution Overview
Problem
Conventional display apparatuses face challenges in directing sound output towards the viewer, resulting in hindered immersion experience and space constraints due to separate speakers, which affect sound quality and design efficiency.
Innovation Solution
A display apparatus with a closed-loop structure featuring vibration generating devices supported by a vibration support that directs sound output towards the front surface, incorporating heat dissipation and sound absorption mechanisms to enhance sound quality and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate speaker is installed in a display apparatus, then sound output function is provided, but the sound traveling direction is toward side or upper/lower portions instead of front surface, hindering immersion experience
Solution Approach 1:
The patent integrates the vibration generating device directly into the display panel structure, merging the sound generation function with the display function. The vibration generating device is positioned at the rear surface of the display panel and vibrates the panel itself to generate sound, eliminating the need for separate speakers and ensuring sound travels toward the front surface where the viewer is located.
Solution Approach 2:
The patent changes the positioning and orientation of the vibration generating device from a separate side-mounted speaker to a rear-surface-integrated device that vibrates the display panel. This dimensional repositioning allows the sound to propagate through the panel in the correct direction (toward the front surface) while maintaining compact integration within the display apparatus structure.
2Adaptability or versatility
If a separate speaker is installed in a display apparatus, then sound output function is provided, but the speaker occupies certain space, limiting design and space disposition
Solution Approach 1:
The vibration generating device is merged with the display panel structure, eliminating the need for separate speaker enclosures and mounting spaces. This integration significantly reduces the overall space occupation while maintaining the sound output function, thereby improving design flexibility and adaptability.
Solution Approach 2:
The display panel serves dual functions: displaying images and generating sound through vibration. This multi-functionality eliminates the need for dedicated speaker space, allowing the same structural component (display panel) to fulfill both visual and auditory output roles, thus optimizing space utilization.
3Ease of operation
If multiple vibration generating devices are used to vibrate multiple display surfaces, then sound output in different directions is achieved, but heat generation increases
Solution Approach 1:
The patent divides the vibration generating devices into multiple independent units positioned at different locations on the rear surface of the display panel. Each device vibrates a specific region of the panel to produce sound in different directions. This segmentation allows for distributed heat generation rather than concentrated heat, and facilitates heat dissipation across multiple contact points with the panel.
Solution Approach 2:
The display panel itself acts as an intermediary heat dissipation medium. The vibration generating devices transfer their generated heat to the display panel, which has a relatively large surface area for heat dissipation. This intermediary approach allows heat from multiple vibration devices to be distributed and dissipated efficiently through the panel structure.
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 towards the viewer, improving immersion and sound quality while minimizing space usage and heat issues, thereby optimizing the display apparatus's performance.
Implementation Method 1
a plurality of vibration generating devices configured to vibrate the plurality of display surfaces
Implementation Method 2
heat occurring in a plurality of vibration generating devices is dissipated through an integrated vibration support
Implementation Method 3
a sound absorption member disposed in each of spaces respectively vibrating a plurality of display surfaces of a display panel, thereby controlling a sound pressure level of a specific frequency domain
Data Source
AI summary
A display apparatus includes a display panel including a plurality of display surfaces having a closed-loop structure and configured to display images in different directions, a plurality of vibration generating devices configured to vibrate the plurality of display surfaces, and a vibration support surrounded by the plurality of display surfaces and configured to support the plurality of vibration generating devices.