Panel Vibration Display Layout for Viewer-Facing Stereo Sound

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Solution Overview

Problem

Existing display devices suffer from degraded sound quality due to sound being directed away from the viewer, interference with walls, and spatial limitations from speakers, and require additional space for displaying and sounding systems.

Innovation Solution

A panel vibration type display device that generates sound by directly vibrating a display panel, with actuators spaced apart to generate sound by vibrating a display panel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a speaker is disposed at a rear part or lower part of the display panel, then sound can be generated, but the sound quality is degraded due to interference with reflected sound and the sound is not oriented toward the viewer

Engineering Contradiction:

Improvesound generation capabilityVSAvoidsound quality degradation

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent merges the speaker assembly with the display panel assembly, integrating the sound generating function directly into the display structure. The speaker is positioned in substantial alignment with the display panel, allowing sound to be generated and directed toward the viewer's position, eliminating the need for separate speaker placement at the rear or lower parts of the display device.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If a speaker is disposed at the rear part or lower part of the display panel, then sound can be generated, but the sound undergoes diffraction which degrades sound localization

Engineering Contradiction:

Improvesound generation capabilityVSAvoidsound localization accuracy

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The speaker assembly is merged with the display panel assembly, positioning the sound source in alignment with the visual display area. This integration ensures that sound waves propagate directly toward the viewer without significant diffraction, improving sound localization accuracy while maintaining ease of manufacture through unified assembly design.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If a speaker is added to the display device, then sound output functionality is achieved, but the device occupies an undesirably large amount of space

Engineering Contradiction:

Improvesound output functionalityVSAvoiddevice space occupation

Core Design Contradiction:

Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The speaker assembly is integrated with the display panel assembly, combining two functional components into a unified structure. This merging eliminates the need for separate speaker housing and mounting space, achieving sound output functionality without increasing the overall device volume.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated assembly serves multiple functions simultaneously - the display panel provides visual output while the integrated speaker provides audio output. This multi-functionality approach allows the device to achieve both display and sound capabilities within the same spatial footprint, avoiding the need for additional dedicated speaker space.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Ease of manufacture

If sound is directed toward the rear part or lower part of the display panel, then speaker placement is simplified, but the viewer's immersion is disturbed

Engineering Contradiction:

Improvespeaker placement simplicityVSAvoidviewer immersion disturbance

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The speaker assembly is merged with the display panel assembly, positioning the sound source to direct sound toward the viewer's position rather than the rear or lower parts. This integration simplifies placement while simultaneously improving viewer immersion by ensuring sound and visual content are spatially aligned.

Inventive Principle:

Principle #5Merging (Combining)

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 panel vibration type display device generates sound from the central area of the display panel and stereo sound from left and right areas, with the panel vibration type display device.

Implementation Method 1

a plurality of actuators spaced apart from each other in a long axis direction of the display panel and each contacting the display panel at a corresponding one of the first, second, and third areas to generate sound by vibrating the display panel

Methodology Applied

Scientific EffectVibration: Vibration

Data Source

PatentEP4215985B1Panel vibration type sound generating display device background

Publication Date: 2025.12.24 LG DISPLAY CO LTD

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AI summary

A display device includes a display panel having first, second, and third areas; at least three sound generating actuators including first, second, and third actuators each spaced apart from the other two in a long axis direction of the display panel, wherein the first, second, and third actuators each contact the display panel at the first, second, and third areas, respectively, to generate sound by vibrating the display panel; and a support structure at a rear side of the display panel configured to support the at least three sound generating actuators.