Acoustically Transparent Display Panel for Compact Audio
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Solution Overview
Problem
Current portable sound generating devices face challenges in balancing smaller size with adequate audio performance, often compromising on sound quality due to reduced speaker module size for thinner designs and larger displays.
Innovation Solution
The integration of a display panel that acts as an acoustically transparent diaphragm, generating sound waves while displaying images related to sound outlets, allowing for virtual sound outlets that can be positioned on the screen, enabling better audio performance without increasing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If speaker module size is reduced to enable thinner designs and larger displays, then device thickness is reduced and display area is increased, but audio performance deteriorates
Solution Approach 1:
The patent merges the display panel and speaker functions into a single integrated structure where the display panel serves as the speaker diaphragm. This combination eliminates the need for a separate speaker module, thereby reducing device thickness while maintaining audio performance through the dual-functionality of the integrated component.
Solution Approach 2:
The display panel is designed to perform multiple functions: it serves as both the visual display surface and the acoustic radiating diaphragm. This multi-functionality allows the device to maintain adequate audio performance with a reduced overall size, as the same component fulfills both display and sound reproduction roles.
2Volume of moving object
If speaker module size is reduced, then device size is reduced, but sound quality deteriorates
Solution Approach 1:
By merging the display panel with the speaker diaphragm, the invention creates an integrated structure that maximizes the effective radiating area within the available device volume. This eliminates the need for a separate speaker module while maintaining sound quality through the large surface area of the display panel acting as the acoustic source.
Solution Approach 2:
The invention transitions from a traditional three-dimensional speaker module to a two-dimensional planar diaphragm structure. The display panel provides a large surface area for sound radiation without requiring significant depth, thereby maintaining sound quality while reducing the volume occupied by the acoustic component.
3Object-generated harmful factors
If physical sound outlets are used, then sound radiation is achieved, but device size increases and privacy is compromised
Solution Approach 1:
The invention creates a virtual sound outlet effect by using the display panel to generate sound waves directly at the display surface. This eliminates the need for physical sound outlets (grilles or openings) while maintaining the appearance of a sleek device design, thereby improving privacy and maintaining compact dimensions.
Solution Approach 2:
The invention extracts the sound radiation function from traditional physical outlets and relocates it to the display panel surface. This extraction eliminates the need for separate sound outlet structures, thereby reducing device size while maintaining sound privacy through direct front-facing sound emission.
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
This solution enhances audio quality by reducing the need for physical sound outlets, allowing for more localized and directed sound emission, improving privacy and maintaining a compact device design.
Implementation Method 1
a speaker associated with the display configured to comprise at least one diaphragm configured to generate sound waves in the direction of the display
Implementation Method 2
the display is configured to display at least one image dependent on the generated sound waves
Data Source
AI summary
In an embodiment an apparatus includes a display panel and a speaker module. The panel has a display layer for displaying images and defines a plurality of apertures penetrating through at least the display layer. The speaker module includes a diaphragm arranged substantially parallel to the display layer. Sound from the speaker diaphragm is directed outside a device through the apertures and the display layer is configured for displaying at least one virtual image in relation to generated sound waves wherein the display panel is acoustically transparent.