Display Device Module Cover Bending Prevention

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Solution Overview

Problem

Display devices face the challenge of module covers being easily bent, which can lead to structural integrity issues and functionality problems, especially around fastening holes.

Innovation Solution

Incorporating a cushion in the vicinity of the fastening holes on the module cover, which is designed with multiple layers of varying thickness, including a depressed part for the cushion, to enhance structural support and prevent bending.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the module cover is made thin and lightweight, then the display device can be ultra-slim, but the module cover becomes easily bent and loses structural integrity

Engineering Contradiction:
Improvethickness of module coverVSAvoidresistance to bending of module cover
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The module cover is designed with varying thickness: the central area is thin to maintain ultra-slim profile, while the peripheral area (within 10mm of edges) is thicker (1.5-2mm) to provide structural strength and prevent bending. This local quality differentiation resolves the contradiction between thinness and strength.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The module cover is segmented into different thickness zones: a thin central region and a thicker peripheral region. This segmentation allows each zone to serve its specific function - the thin center reduces overall thickness while the thick perimeter provides structural support and bending resistance.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If fastening holes are provided in the module cover for wall mounting, then the display device can be installed on walls, but the module cover becomes vulnerable to bending around the hole areas

Engineering Contradiction:
Improvewall mounting capabilityVSAvoidstructural integrity around fastening holes
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

Ribs are pre-formed around the fastening holes to provide structural reinforcement before the fastening operation. These ribs act as cushions that prevent bending and maintain structural integrity in the vulnerable hole areas, allowing wall mounting without compromising stability.

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

Solution Approach 2:

The module cover incorporates ribs (structural elements) integrated with the cover body (base material) to create a composite structure. The ribs provide additional stiffness and strength around fastening holes while maintaining the overall thin profile of the cover.

Inventive Principle:
Principle #40Composite materials

3Volume of moving object

If the module cover is made thin to achieve ultra-slim design, then the display device profile is improved, but the cover requires additional reinforcement structures that increase complexity

Engineering Contradiction:
Improveoverall thickness of display deviceVSAvoidstructural reinforcement features
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The reinforcement features (ribs and variable thickness zones) are merged into the module cover as integral parts rather than separate components. This combining approach provides necessary structural support while avoiding the complexity of additional separate reinforcement pieces, maintaining a clean ultra-slim design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3255624B1Display device
Publication Date: 2021.06.02 LG ELECTRONICS INC
  • EP3255624B1 patent drawingFigure 1
  • EP3255624B1 patent drawingFigure 2
  • EP3255624B1 patent drawingFigure 3

AI summary

Provided is a display device. A display device according to the present invention comprises a display panel (100); a module cover (200) disposed on the rear surface of the display panel and having at least one or more fastening holes (271); and a cushion covering the vicinity of the fastening hole disposed on the front surface of the module cover, wherein the vicinity of the fastening hole includes a plurality of layers and the cushion is disposed on top of the plurality of layers. According to the present invention, a module cover cannot be easily bent as a cushion is disposed in the vicinity of a fastening hole.