Partitioned Display Panel With Vibration Devices for Multi-Channel Audio
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Solution Overview
Problem
Display apparatuses face challenges with sound quality deterioration due to speaker interference and limited design spatial disposition, as well as reduced viewer immersion.
Innovation Solution
Incorporation of a vibration device at the rear surface of the display panel to generate sound by vibrating the panel, enabling multi-channel sound output and directing sound towards the front.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate speaker is installed in the display apparatus, then sound output function is provided, but the speaker occupies space and limits design spatial disposition
Solution Approach 1:
The patent merges the speaker function with the display panel by integrating a vibration device directly into the panel structure. The vibration device is disposed at the rear surface of the display panel and vibrates the panel to generate sound, eliminating the need for a separate speaker component and enabling flexible spatial design.
Solution Approach 2:
The display panel serves dual functions: visual display and sound generation. The vibration device enables the panel to function as both a display medium and a sound output device, achieving multi-functionality that reduces component count and design constraints.
2Reliability
If sound output progresses toward rear direction or lower direction, then speaker function is achieved, but sound quality deteriorates due to interference from wall or ground reflections
Solution Approach 1:
Instead of directing sound toward the rear or lower direction where reflections occur, the invention inverts the sound output direction by vibrating the display panel to project sound toward the front surface. This eliminates the harmful reflections from walls or ground that would otherwise degrade sound quality.
Solution Approach 2:
The invention converts the display panel, which would normally just be a visual interface, into a sound generation medium. By vibrating the panel itself, the system turns a potentially harmful surface (that could reflect sound) into a beneficial sound source that directs audio toward the viewer without interference.
3Reliability
If separate speaker is used, then sound output is provided, but viewer immersion is deteriorated
Solution Approach 1:
By combining the display and sound output functions into a single integrated system, the patent creates a more immersive experience. The vibration device disposed at the rear surface of the display panel generates sound that emanates from the display itself, making the viewer feel more engaged and immersed in the audio-visual content.
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
Enhances sound pressure characteristics and improves sound quality by eliminating interference issues, allowing for immersive audio experiences without the need for separate speakers.
Implementation Method 1
a vibration device which is disposed at a rear surface of a display panel and vibrates the display panel to generate a sound
Data Source
AI summary
A display apparatus includes a display device including a display panel configured to display an image and include first to eleventh regions; a first partition between the first region and the third region; a second partition between the second region and the third region; a third partition between the fourth region and the seventh region; a fourth partition between the fifth region and the eighth region; a fifth partition between the sixth region and the seventh region; a sixth partition between the sixth region and the eighth region; and at least one first to eleventh vibration devices respectively at the first to eleventh regions. One or more among the at least one first to eleventh vibration devices are configured with a coil type vibration device, a film type vibration device, or a woofer-integrated vibration device.