Panel-Vibrating Display Audio Layout for Forward Sound Projection
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Solution Overview
Problem
Existing display apparatuses face issues with sound quality and viewer immersion due to speakers projecting sound away from the front of the display panel, leading to degraded sound quality and limited design options.
Innovation Solution
A display apparatus with integrated sound generators, including coil-type and piezoelectric-type generators, positioned in the display and non-display areas to vibrate the panel and generate sound directly towards the viewer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a speaker is provided in a display apparatus, then sound can be supplied, but the sound is projected toward the rear or lower portion of the display panel instead of toward the front, diminishing viewer immersion
Solution Approach 1:
The patent inverts the conventional speaker placement by positioning sound generators at the front of the display panel rather than at the rear, causing sound to propagate toward the viewer directly instead of away from them. This inversion resolves the contradiction by making the sound projection direction align with the viewer's position, thereby enhancing immersion experience.
2Reliability
If a speaker is provided in a display apparatus, then sound output is achieved, but sound quality is degraded due to interference with sound reflected on wall or floor
Solution Approach 1:
The patent inverts the sound projection direction by placing sound generators at the front of the display panel, causing sound to travel forward toward the viewer rather than backward toward reflective surfaces. This eliminates harmful sound reflections from walls and floors, thereby improving sound quality while maintaining reliable sound output.
3Reliability
If providing a speaker in a set apparatus such as a television, then sound generation is achieved, but the speaker occupies space and limits design and spatial disposition
Solution Approach 1:
The patent merges the sound generation function with the display panel structure by integrating sound generators directly into the front of the display panel. This combination eliminates the need for separate rear-mounted speakers, freeing up space and providing greater design flexibility while maintaining effective sound generation.
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 quality and viewer immersion by directing sound forward, improving stereo effect and reducing spatial constraints.
Implementation Method 1
at least one coil-type sound generator on a rear surface of the optical module
Implementation Method 2
at least one piezoelectric-type sound generator in the non-display area
Implementation Method 3
each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
A display apparatus includes a display panel including a display area configured to display an image and a non-display area, at least one first sound generator in the display area, and at least one second sound generator in the non-display area, wherein each of the at least one first sound generator and the at least one second sound generator is configured to vibrate the display panel to generate sound.