Foldable Display Housing With Graphite Cooling and Shock Protection

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Solution Overview

Problem

Existing display devices face challenges in storage and portability, durability, rigidity, heat dissipation, and shock absorption, particularly for portable applications.

Innovation Solution

A display device design featuring a modular structure with a display module, a bottom case, and a top case hinge-connected to the bottom case, incorporating a frame made of high-strength, ultra-light materials for rigidity, heat dissipation structures using graphite sheets, and shock-absorbing components to enhance durability and portability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a display device is designed for portability, then ease of operation is improved, but durability and rigidity deteriorate

Engineering Contradiction:
ImproveportabilityVSAvoiddurability and rigidity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The patent employs composite material structures in the housing and internal components, combining materials with different properties to achieve both light weight for portability and high strength for durability. The housing uses composite construction that maintains rigidity while reducing overall weight, enabling portable display devices to withstand shocks and stresses during transport.

Inventive Principle:
Principle #40Composite materials

2Temperature

If heat dissipation structures are added, then temperature control is improved, but device complexity increases

Engineering Contradiction:
Improveheat dissipationVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent integrates heat dissipation functions into existing structural components rather than adding separate dedicated heat dissipation devices. The housing structure itself incorporates thermal management features, and heat dissipation elements are merged with structural supports, achieving effective temperature control without significantly increasing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If shock absorbing structures are added, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveshock absorptionVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates shock-absorbing materials and structures in advance during the device assembly process, placing cushioning elements at critical locations before final housing closure. This preemptive approach to shock protection integrates seamlessly into the device architecture, improving reliability against drops and impacts without adding complex removable components or post-assembly modifications.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 design facilitates storage and portability, improves durability and rigidity, and provides effective heat dissipation and shock absorption, addressing the limitations of existing display devices.

Implementation Method 1

heat dissipation structures using graphite sheets

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4428653A1Display device
Publication Date: 2024.09.11 LG ELECTRONICS INC
  • EP4428653A1 patent drawingFigure 1
  • EP4428653A1 patent drawingFigure 2
  • EP4428653A1 patent drawingFigure 3

AI summary

A display device is disclosed. The display device includes: a display module including a display panel; a bottom case to which the display module is movably mounted; and a top case hinge-connected to the bottom case.