Display Panel Sound Generation Partition Material Design

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional display apparatuses face issues with sound quality due to speakers being positioned below or behind the display panel, leading to sound being directed away from the user and interference with surrounding surfaces, which disrupts the immersive experience and deteriorates sound quality.

Innovation Solution

A display apparatus with a sound generation device that vibrates the display panel to direct sound forward, utilizing a partition with different materials on its sides to manage sound waves and reduce wave phenomena, enhancing sound quality by ensuring sound travels directly to the user.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If a speaker is provided in the display apparatus, then sound can be generated, but the sound advances toward a lower or rear portion of the display panel instead of the front portion, disrupting user immersion and deteriorating sound quality

Engineering Contradiction:
Improvesound quality deteriorationVSAvoiduser immersion experience
Core Design Contradiction:
Object-generated harmful factorsVSEase of operation

Solution Approach 1:

The patent inverts the conventional speaker placement by positioning the sound generation device at the front surface of the display panel instead of below or behind it. This inversion allows sound to propagate directly toward the user, eliminating the harmful effect of sound being directed away from the front and thereby resolving the contradiction between sound quality and user immersion experience

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the spatial dimension of sound generation from a rear/bottom position to a front surface position. By integrating the sound generation device into the front surface of the display panel, the sound propagation direction is fundamentally altered to move toward the user, thus resolving the contradiction between sound quality and user immersion

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Object-generated harmful factors

If a speaker is provided in the display apparatus, then sound can be generated, but the speaker occupies space that imposes restrictions on design and spatial disposition

Engineering Contradiction:
Improvesound quality deteriorationVSAvoiddesign restriction
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the sound generation function with the display panel structure by integrating the sound generation device into the front surface of the display panel. This combination eliminates the need for a separate speaker component, thereby removing the design restrictions and spatial disposition limitations that would otherwise be imposed by a conventional speaker

Inventive Principle:
Principle #5Merging (Combining)

3Object-generated harmful factors

If a speaker is provided in the display apparatus, then sound can be generated, but sound quality is deteriorated due to interference with sound reflected on the wall or floor

Engineering Contradiction:
Improvesound quality deteriorationVSAvoidsound reflection interference
Core Design Contradiction:
Object-generated harmful factorsVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the sound propagation direction by positioning the sound generation device at the front surface, causing sound to travel forward toward the user rather than backward toward reflective surfaces. This inversion eliminates the harmful effect of sound reflection interference from walls or floors, thereby resolving the contradiction between sound quality and sound reflection interference

Inventive Principle:
Principle #13The other way round (Inversion)

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 solution effectively directs sound towards the user, improving sound quality by minimizing interference with surrounding surfaces and maintaining a sleek design by eliminating the need for external speakers.

Implementation Method 1

one or more sound generation devices configured to vibrate the display panel to generate sound

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

a partition between the display panel and the supporting member, the partition including: a first side in a horizontal direction, and a second side in a vertical direction

Methodology Applied
Scientific EffectSound wave propagation: Sound

Data Source

PatentUS10921852B2Display apparatus
Publication Date: 2021.02.16 LG DISPLAY CO LTD
  • US10921852B2 patent drawing
  • US10921852B2 patent drawing
  • US10921852B2 patent drawing

AI summary

A display apparatus includes: a display panel configured to display an image, one or more sound generation devices configured to vibrate the display panel to generate sound, a supporting member configured to support the display panel, a partition between the display panel and the supporting member, the partition including: a first side in a horizontal direction, and a second side in a vertical direction, one or more first pad parts on the first side of the partition, and one or more second pad parts on the second side of the partition, wherein a first of the one or more first pad parts includes a different material from a material of a first of the one or more second pad parts.