Display Frame and Bar Mount Structure for Higher Rigidity

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Solution Overview

Problem

Display devices face issues with rigidity, leading to deformation or damage due to tilting or load, which existing structures fail to adequately address.

Innovation Solution

The implementation of a bracket system that includes a module cover with a rigid part and a bar fixing part, coupled with a mount and a coupling part, enhances the torsional and bending rigidity of the display device's frame, minimizing deformation and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a conventional frame structure is used, then the device is simple to manufacture, but the rigidity is insufficient leading to deformation under load or tilting

Engineering Contradiction:
ImproverigidityVSAvoidframe structure
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The frame is divided into multiple segments including a first frame, second frame, middle cabinet, and back cover that can be separately manufactured and then assembled. This segmentation allows each part to be optimized for strength while maintaining manufacturing simplicity through modular construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The middle cabinet is disposed between the first and second frames, and the back cover is coupled to the rear of the middle cabinet, creating a nested structure where components are housed within one another. This nesting approach increases rigidity through layered support while minimizing the overall footprint and simplifying assembly.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Stability of the object's composition

If the frame structure is strengthened to prevent deformation, then the rigidity improves, but the manufacturing complexity increases

Engineering Contradiction:
Improvestructural integrityVSAvoidframe assembly
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The coupling parts are provided in advance on the frames and middle cabinet during manufacturing, with predetermined coupling holes and coupling protrusions. This preliminary preparation of coupling features allows for rapid final assembly while ensuring structural integrity, as the strength-critical components are pre-formed rather than assembled under field conditions.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The middle cabinet serves as an intermediary component that couples the first and second frames together, providing a stable platform for mounting electronic parts. This intermediary structure distributes mechanical loads across multiple connection points, enhancing overall structural stability while simplifying the assembly process through a modular intermediate element.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If additional support structures are added to prevent damage from tilting, then the reliability improves, but the device complexity increases

Engineering Contradiction:
Improveresistance to tilting and loadVSAvoidsupport structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The back cover serves multiple functions: it provides structural support to prevent tilting and damage, houses electronic parts, and completes the enclosure. This multi-functionality approach increases reliability through enhanced support capabilities while avoiding the need for separate dedicated support structures, thereby maintaining simplicity.

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

Solution Approach 2:

The support structure extends in multiple spatial dimensions, with the middle cabinet and back cover creating a three-dimensional framework that resists tilting forces from various directions. By utilizing vertical and depth dimensions in addition to horizontal support, the structure achieves comprehensive anti-tilting protection without requiring excessive horizontal bracing elements.

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

Data Source

PatentEP4075188B1Display device
Publication Date: 2023.11.15 LG ELECTRONICS INC
  • EP4075188B1 patent drawingFigure 1
  • EP4075188B1 patent drawingFigure 2
  • EP4075188B1 patent drawingFigure 3

AI summary

A display device includes: a module cover; a display panel which is positioned in front of the module cover, and is coupled to the module cover; a frame which surrounds a side surface of the module cover, the frame including a first frame adjacent to one side of the module cover and a second frame adjacent to the other side of the module cover opposite to the one side of the module cover; a bar which is positioned behind the module cover, extends long between the first frame and the second frame, and is coupled to the first frame and the second frame; and a mount which is positioned behind the module cover, adjacent to the one side of the module cover, and is coupled to the bar, wherein the mount is coupled to the first frame and the module cover.