Bent Back Cover With Elastic Molding Part For Display Devices

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Solution Overview

Problem

Existing display devices face issues with foreign matter infiltration and damage due to gaps between the display panel and the support structure, which affect the device's appearance and functionality, and require additional components for rigidity and heat dissipation.

Innovation Solution

A display device with a back cover featuring a bent structure and an elastic material molding part that encloses a vertical extension portion, including uneven surfaces and through holes to enhance bonding and prevent separation, along with a metal inner plate for increased rigidity and heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a gap is formed between the display panel and the support structure for expansion and assembly convenience, then ease of operation is improved, but foreign matter infiltration and damage to the display panel occur

Engineering Contradiction:
Improveassembly convenienceVSAvoidprotection against foreign matter infiltration
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A molding part made of elastic material is introduced as an intermediary component between the display panel and the back cover. This molding part fills the gap that necessarily exists for assembly convenience, preventing foreign matter infiltration while allowing the display panel to expand and contract. The elastic material acts as a mediator that maintains both assembly ease and protection against contamination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If the back cover is made rigid for structural support, then strength is improved, but heat dissipation capability deteriorates

Engineering Contradiction:
Improvestructural rigidityVSAvoidheat dissipation
Core Design Contradiction:
StrengthVSLoss of energy

Solution Approach 1:

The back cover is constructed using a composite structure combining a rigid base material for structural support with thermally conductive materials or structures integrated into it. This composite construction allows the back cover to maintain its strength and rigidity for structural support while simultaneously providing effective heat dissipation pathways for the display panel.

Inventive Principle:
Principle #40Composite materials

3Strength

If additional components are added to the back cover for rigidity and heat dissipation, then strength and heat dissipation are improved, but device complexity increases

Engineering Contradiction:
Improveback cover rigidityVSAvoidnumber of components
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The back cover is designed as a multi-functional component that simultaneously provides structural support, heat dissipation, and protection against foreign matter infiltration. By integrating multiple functions into a single component rather than adding separate components for each function, the design maintains strength and heat dissipation capabilities while minimizing device complexity.

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

Solution Approach 2:

The functions of structural support, heat dissipation, and gap filling are merged into the back cover assembly. The rigid portion provides structural support and mounting surfaces, while the integrated molding part provides gap filling and foreign matter protection. This merging of functions reduces the total number of components while achieving all necessary objectives.

Inventive Principle:
Principle #5Merging (Combining)

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 minimizes the border gap, prevents foreign matter infiltration, increases bonding force, enhances rigidity, and improves heat dissipation, resulting in a more robust and aesthetically pleasing display device.

Implementation Method 1

a molding part made of an elastic material which surrounds a vertical extension portion of the back cover

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an inner plate of a metal material disposed on the inner surface of a horizontal portion of the back cover

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10691163B2Display device
Publication Date: 2020.06.23 LG DISPLAY CO LTD
  • US10691163B2 patent drawing
  • US10691163B2 patent drawing
  • US10691163B2 patent drawing

AI summary

Disclosed aspects relate to a display device. By forming a back cover, which is the support structure constituting the display device, in a bent structure and forming a molding part made of an elastic material to enclose the vertical extension portion, a border gap, which is a clearance between the side surfaces of the display panel and the side surface support structure, can be minimized to maintain an excellent external appearance of the display device, and to prevent infiltration of foreign matter and damage of the display panel, which may be caused by the gap between the display panel and the support structure. By disposing a metal inner plate on the inner surface of the horizontal portion of the back cover, the rigidity of the back cover can be increased, the thickness of the back cover can be decreased, and heat generated from the display panel and the like can be smoothly dissipated.