Screen-Vibrating Display Modules for Integrated On-Screen Sound
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Solution Overview
Problem
Existing display apparatuses with speakers placed on the back or around the display unit fail to provide an integrated audiovisual experience as sound output is blocked or heard from outside the screen, disrupting the synchronization of images and sound.
Innovation Solution
A display apparatus that incorporates a display unit with light source substrates and a screen vibration sound output unit using vibrators to directly vibrate the light source substrates, allowing the display unit to output sound directly from its surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speakers are placed on the back of the display unit, then the display unit can output sound, but the sound is blocked by the display unit and cannot be heard properly
Solution Approach 1:
The patent applies mechanical vibration by using a vibrator to directly vibrate the light source substrates or display modules from the back side, causing the display surface itself to radiate sound waves. This transforms the display surface into a sound radiation surface, eliminating the sound blocking problem while maintaining the sound output function.
Solution Approach 2:
The patent makes the display surface serve dual functions: displaying images and radiating sound. By vibrating the light source substrates or display modules, the display surface becomes both a visual display medium and an acoustic radiation surface, achieving multi-functionality and eliminating the need for separate speaker placements.
2Reliability
If speakers are placed around the display unit, then the display unit can output sound, but the sound is heard from outside the screen disrupting audiovisual integration
Solution Approach 1:
The patent merges the sound output function with the display surface by making the display surface itself radiate sound. This combines the visual and acoustic output functions into a single integrated surface, ensuring that sound appears to originate from the same location as the corresponding visual content, thereby maintaining audiovisual synchronization.
Solution Approach 2:
The patent applies local quality by enabling different regions of the display surface to vibrate and radiate sound corresponding to the visual content displayed in those regions. This allows sound to be emitted from specific locations on the screen that match the visual elements, creating a localized audiovisual experience that maintains synchronization.
3Loss of information
If the display surface is used as a sound radiation surface, then audiovisual integration is achieved, but the structural complexity increases
Solution Approach 1:
The patent applies self-service by using the display module's own structure (light source substrates or display modules) as the vibration transmission medium. The existing structural components of the display unit serve dual purposes: supporting the display function and transmitting vibration for sound radiation, thereby reducing the need for additional dedicated vibration transmission structures.
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 display apparatus creates a sense of integration between images and sound by outputting sound from the display surface itself, enhancing the viewer's experience with synchronized audiovisual perception.
Implementation Method 1
a screen vibration sound output unit configured to vibrate the light source substrates or the display modules from a back side by a vibrator, thereby allowing the display unit to output sound
Data Source
AI summary
The present technology relates to a display apparatus, an output method, and a display module that can create a sense of integration between images and sound.The display apparatus of the present technology includes a display unit that is configured to display an image and that includes display modules combined, the display modules each including multiple light source substrates, and a screen vibration sound output unit configured to vibrate the light source substrates or the display modules from a back side by a vibrator, thereby allowing the display unit to output sound. The vibrator includes a piezoelectric actuator. The present technology can be applied to display apparatuses including large screen display units such as LED displays, for example.