Display Device Sagging Prevention Structure

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Solution Overview

Problem

As the size and weight of display devices increase, they are prone to sagging, which can lead to assembly convenience issues, leakage phenomena during joint coupling, and fatigue fracture.

Innovation Solution

A display device with a housing that includes a first base frame and a second base frame assembled with a lower frame, where the lower frame is fixed to at least one base frame using fixing pins, preventing sagging and improving assembly convenience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the size of the display device is increased, then the display area is improved, but sagging occurs due to increased weight

Engineering Contradiction:
Improvedisplay areaVSAvoidsagging
Core Design Contradiction:
Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The housing is divided into multiple base frames (first base frame, second base frame, third base frame) that are separately assembled and fixed to the lower frame. This segmentation allows each base frame to independently support portions of the display panel's weight, distributing the load and preventing sagging while maintaining a large display area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Base frames are disposed in different directions (first direction, second direction, third direction) relative to the lower frame, creating a three-dimensional support structure. This multi-directional arrangement provides comprehensive support against sagging in various orientations while preserving the large horizontal display area.

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

2Area of stationary object

If the size of the display device is increased, then the display area is improved, but assembly convenience deteriorates

Engineering Contradiction:
Improvedisplay areaVSAvoidassembly convenience
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The housing structure is segmented into multiple independently assembleable base frames that can be attached to the lower frame separately. This modularity simplifies the assembly process for large display devices by allowing components to be assembled in stages rather than requiring complex one-piece construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple base frames are nested around the display panel, with each base frame fitting into the overall housing structure. This nested arrangement allows for systematic assembly where components are progressively integrated, improving assembly convenience while supporting large display areas.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Strength

If joint coupling is performed, then structural connection is achieved, but leakage phenomenon occurs

Engineering Contradiction:
Improvestructural connectionVSAvoidleakage phenomenon
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

Fixing pins serve as intermediary elements between the base frames and the lower frame, providing a controlled connection interface. These fixing pins ensure proper alignment and sealing at the joints, maintaining structural connection strength while preventing leakage phenomena at the coupling points.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Ease of operation

If conventional joint structures are used, then assembly is simplified, but fatigue fracture occurs

Engineering Contradiction:
Improveassembly simplicityVSAvoidfatigue fracture
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The joint structure is segmented into multiple fixing pins distributed across the base frames rather than using few large connectors. This distribution of connection points reduces stress concentration at any single location, preventing fatigue fracture while maintaining assembly simplicity through standardized fixing pin components.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12211402B2Display device having sagging prevention structure
Publication Date: 2025.01.28 LG ELECTRONICS INC
  • US12211402B2 patent drawing
  • US12211402B2 patent drawing
  • US12211402B2 patent drawing

AI summary

A display device is disclosed. The display device of the present disclosure comprises: a housing extended to be long; a roller provided inside the housing; and a display panel which is wound around or unwound from the roller, wherein the housing includes first and second base frames assembled together with a lower frame, the lower frame is assembled together with or fixed to the first base frame and/or the second base frame by at least one fixed pin so as to prevent sagging caused by a weight increase.