Foldable Display Arm and Case Structure for Heat and Shock Control

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Solution Overview

Problem

Current display devices face challenges in storage and portability, durability, rigidity, heat dissipation, and shock absorption, which hinder their outdoor use and convenience.

Innovation Solution

A portable display device design featuring a modular structure with a display panel, hinge-connected arms, and a case system that includes a bottom and top case, along with heat dissipation and shock absorption mechanisms, such as graphite sheets and a bumper system, to enhance storage, portability, and durability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a portable display device is designed with a compact structure, then storage and portability are improved, but heat dissipation becomes more difficult

Engineering Contradiction:
Improvedevice sizeVSAvoidheat dissipation
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The graphite heat dissipation sheet is integrated within the layered structure of the display device, nesting the thermal management component between functional layers (display panel, bumper, case) to maximize space utilization without increasing external dimensions

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent combines graphite material with the display device structure to create a composite thermal management system, where the graphite sheet serves as a heat spreader within the compact device architecture, enabling effective heat dissipation without increasing device volume

Inventive Principle:
Principle #40Composite materials

2Reliability

If the display device structure is made more robust for durability, then reliability is improved, but weight and size increase

Engineering Contradiction:
ImprovedurabilityVSAvoiddevice weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

A bumper structure is integrated into the display device to provide shock absorption and impact protection, enhancing durability against drops and collisions without requiring a complete redesign of the device housing

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

Solution Approach 2:

The bumper is embedded within the case structure, nesting the protective element within the existing device architecture rather than adding it as an external component, thereby minimizing weight and size increases

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If a hinge connection system is added for portability, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
ImproveportabilityVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The display device is divided into separable components (display module, case, bumper) connected by hinge joints, allowing the device to be folded, collapsed, or disassembled for portable storage while maintaining structural integrity during use

Inventive Principle:
Principle #1Segmentation

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 easy storage and portability, improves durability and rigidity, and effectively manages heat dissipation and shock absorption, making the display device more suitable for outdoor use.

Implementation Method 1

a heat dissipation structure for a portable display device

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

a shock absorbing structure for a portable display device

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP4435558A1Display device
Publication Date: 2024.09.25 LG ELECTRONICS INC
  • EP4435558A1 patent drawingFigure 1
  • EP4435558A1 patent drawingFigure 2
  • EP4435558A1 patent drawingFigure 3

AI summary

A display device is disclosed. The display device includes: a display module including a display panel; an arm having an upper arm that is coupled to a rear of the display module and a lower arm that is hinge-connected to the upper arm; a bottom case to which the lower arm is pivotally connected; and a top case hinge-connected to the bottom case.