Display Panel Non-Display Sound Generator Layout for Front Audio
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Solution Overview
Problem
Existing display apparatuses face issues with sound quality and immersion experience due to speakers generating sound towards the rear or lower portion of the panel, leading to interference and design constraints.
Innovation Solution
Incorporation of sound generators, including coil-type and piezoelectric sound generators, in the non-display areas of the display panel to generate sound without obstructing the image display, improving sound quality and immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a speaker is provided in the display apparatus, then sound can be supplied, but the sound advances toward the lower or rear portion of the display panel instead of toward the front portion, which deteriorates sound quality and user immersion
Solution Approach 1:
The patent inverts the conventional speaker placement by positioning the sound generator in the non-display area rather than the display area, and inverts the sound propagation direction to face the front portion instead of the rear portion. This inversion resolves the contradiction by making sound advance toward the user while maintaining speaker functionality.
Solution Approach 2:
The patent moves the sound generator from the display area (2D plane) to the non-display area (spatial dimension change), utilizing the z-axis dimension behind the display panel. This dimensional transition allows sound to propagate forward toward the user without interfering with the display function.
2Ease of operation
If a speaker is provided in the display apparatus, then sound can be supplied, but the speaker occupies space which imposes restrictions on design and spatial disposition
Solution Approach 1:
The patent extracts the sound generator from the display area and relocates it to the non-display area. This extraction removes the spatial conflict between the speaker and display components, allowing independent optimization of both functions without design restrictions.
3Ease of operation
If a speaker is provided in the display apparatus, then sound can be supplied, but sound quality is deteriorated due to interference with sound reflected on the wall or floor
Solution Approach 1:
The patent applies preliminary anti-action by positioning the sound generator in the non-display area to preemptively prevent sound interference. By directing sound forward from the beginning rather than allowing rearward propagation that would reflect off walls or floor, the harmful interference is avoided before it can occur.
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 user immersion by directing sound towards the front of the display panel, reducing interference and spatial constraints, while maintaining a slim design.
Implementation Method 1
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
Implementation Method 2
Incorporation of sound generators, including coil-type and piezoelectric sound generators, in the non-display areas of the display panel to generate sound
Data Source
Figure 1A~1B
Figure 2
Figure 3A~3B
AI summary
A display apparatus may include: a display panel including: a display area configured to display an image, and a non-display area, an optical module on a rear surface of the display panel, at least one first sound generator on a rear surface of the optical module, and at least one second sound generator in the non-display area and between the display panel and the optical module.