Display Device Top Sound Hole Wall Structure

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Solution Overview

Problem

Conventional display devices with woofers often have their sound holes oriented towards the back or bottom, which can result in bass effects being blocked by objects behind the device, thereby reducing the effectiveness of the sound output.

Innovation Solution

The display device features a back cover with sound holes on its top side and an inner wall structure that encloses the woofer, guiding the sound output through an opening to the top side, minimizing obstruction and enhancing sound reception.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the sound holes are oriented towards the back or bottom side, then the woofer structure is simple, but the bass effect is easily blocked by objects behind the display device

Engineering Contradiction:
Improvewoofer structure simplicityVSAvoidbass effect blockage
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent changes the sound output direction from the traditional back/bottom orientation to the top side of the display device. By forming sound holes on the top side of the back cover and using a wall structure to guide sound upward, the invention utilizes the vertical dimension to redirect bass output away from objects behind the device, effectively solving the blockage problem while maintaining structural simplicity

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

2Object-affected harmful factors

If the sound holes are oriented towards the top side with a wall structure, then the bass effect is less blocked by objects, but the woofer structure becomes more complex

Engineering Contradiction:
Improvebass effect blockageVSAvoidwoofer structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The back cover serves multiple functions: it protects internal components, provides structural support, and acts as a sound guide structure. The wall structure extending from the back cover integrates the sound guidance function into an existing component, avoiding the need for separate sound guiding parts and minimizing overall structural complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The wall structure utilizes the vertical space within the casing by extending upward from the back cover. This three-dimensional arrangement guides sound in the vertical dimension without requiring additional horizontal space or complex external structures, achieving effective sound direction with minimal added complexity

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 configuration allows for improved sound output from the woofer by directing it towards the top, where there are fewer obstructions, thereby enhancing the overall sound effect for the user.

Implementation Method 1

the wall structure encloses the woofer, such that the sound outputted by the woofer is guided to the sound holes through the opening of the wall structure

Methodology Applied
Scientific EffectSound wave propagation: Sound

Data Source

PatentUS10750262B2Display device
Publication Date: 2020.08.18 QISDA CORP
  • US10750262B2 patent drawing
  • US10750262B2 patent drawing
  • US10750262B2 patent drawing

AI summary

A display device includes a casing, a display module and a woofer. The casing includes a back cover. A top side of the back cover has a plurality of sound holes formed thereon. A wall structure extends from an inner surface of the back cover. An opening of the back cover communicates with the sound holes. The display module is disposed in the casing. The woofer is disposed in the casing and located between the display module and the back cover. The wall structure encloses the woofer to guide a sound outputted by the woofer to the sound holes through the opening.