Display Device Sound Generation Device Spatial Arrangement

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The acoustic characteristics of sound generation devices in display devices deteriorate due to the arrangement and structure of adjacent components such as batteries and frames, leading to interference and reduced performance.

Innovation Solution

The display device is designed with a specific spatial arrangement of the sound generation device and battery, where the sound generation device is positioned adjacent to the frame's long side edges and the battery is positioned adjacent to the frame's short side edges, with optimized distances to minimize interference and maximize acoustic performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the battery is positioned close to the sound generation device to minimize space usage, then device compactness is improved, but acoustic performance deteriorates due to interference from adjacent components

Engineering Contradiction:
Improvedevice compactnessVSAvoidacoustic performance
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent applies local quality by creating different spatial zones around the sound generation device. Specifically, it defines a first distance range (closer to the device) and a second distance range (farther from the device), assigning different functional roles to each zone. The battery is positioned in the second distance range where interference is minimized, while other components can occupy the first distance range, thus optimizing both compactness and acoustic performance through differentiated spatial allocation.

Inventive Principle:
Principle #3Local quality

2Productivity

If adjacent components are arranged close to the sound generation device to reduce overall device size, then manufacturing efficiency is improved, but acoustic performance deteriorates due to interference

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidacoustic performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies parameter changes by establishing specific distance parameters between the sound generation device and adjacent components. It defines a first distance range and a second distance range, with the battery positioned at a second distance that is greater than the first distance. This quantitative parameter specification enables standardized manufacturing while ensuring acoustic performance, thus resolving the contradiction between manufacturing efficiency and acoustic quality.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If the battery and sound generation device are positioned close together, then device complexity is reduced, but acoustic performance deteriorates due to interference from adjacent components

Engineering Contradiction:
Improvestructure simplicityVSAvoidacoustic performance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies dimensionality change by transitioning from a two-dimensional planar arrangement to a three-dimensional spatial arrangement. It defines distance ranges in the vertical dimension (thickness direction of the display device), allowing the battery and sound generation device to be positioned at different heights rather than just different horizontal positions. This vertical separation reduces interference while maintaining structural simplicity.

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

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

This arrangement enhances the acoustic performance of the sound generation device by reducing interference from adjacent components, resulting in improved sound pressure and efficiency.

Implementation Method 1

a vibration device disposed on the display panel and received in the first hole

Methodology Applied
Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS11190866B2Display device
Publication Date: 2021.11.30 SAMSUNG DISPLAY CO LTD
  • US11190866B2 patent drawing
  • US11190866B2 patent drawing
  • US11190866B2 patent drawing

AI summary

A display device includes: a display panel; a frame disposed on the display panel and having a first hole and a second hole spaced apart from the first hole; a vibration device disposed on the display panel and received in the first hole; and a battery disposed on the display panel and received in the second hole. The frame has a first long side edge, a second long side edge opposite to the first long side edge, a first short side edge disposed between the first and second long side edges, and a second short side edge opposite to the first short side edge. The vibration device is disposed adjacent to the first long side edge, and the battery is disposed adjacent to the second long side edge.