Magnetic Tiled Display Assembly for Front-Side Alignment

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Solution Overview

Problem

Existing tiled displays face challenges in precise alignment and real-time adjustment of display devices when attached to a wall, leading to visible boundaries and reduced image quality due to machining and adhesion tolerances, making it difficult to check and maintain the spacing and alignment from the front.

Innovation Solution

A method and tool using magnets with rotatable poles to attach and detach display devices from a wall, allowing for real-time alignment and adjustment from the front, reducing the impact on devices and simplifying the fastening process with fewer components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If display devices are attached to the wall from the back using conventional fastening members, then the attachment is secure, but the alignment precision deteriorates due to inability to check from the front

Engineering Contradiction:
Improvealignment precisionVSAvoidalignment checkability
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent inverts the conventional attachment approach by allowing display devices to be attached to the wall from the front rather than from the back. The attaching member engages with the display device case from the front surface, enabling the operator to visually check alignment in real-time while maintaining secure attachment. This inversion resolves the contradiction by making the previously hidden alignment checkable without compromising attachment security.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If multiple fastening members are used to secure display devices, then the attachment reliability improves, but the device complexity increases

Engineering Contradiction:
Improveattachment reliabilityVSAvoidfastening structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into a single attaching member that combines both attachment and alignment functions. The attaching member integrates a fastening structure that secures the display device to the wall while simultaneously providing alignment features such as guide portions that ensure precise positioning. This consolidation reduces the number of separate components needed, thereby reducing device complexity while maintaining or even improving attachment reliability through the integrated design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The attaching member is designed as a multi-functional component that performs multiple tasks: it attaches the display device to the wall, aligns the device in the correct position, and allows for easy detachment and reattachment. This universal design eliminates the need for separate alignment tools and fastening mechanisms, reducing overall system complexity while ensuring reliable and precise attachment.

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

3Manufacturing precision

If display devices are firmly fixed to eliminate boundaries, then the image quality improves, but the ease of maintenance deteriorates

Engineering Contradiction:
Improveboundary eliminationVSAvoiddevice replaceability
Core Design Contradiction:
Manufacturing precisionVSEase of repair

Solution Approach 1:

The patent implements a dynamic attachment system where the attaching member allows for easy detachment and reattachment of display devices. The attaching member engages with the display device case through a mechanism that provides firm fixation during operation (eliminating boundaries and ensuring image quality) but allows for simple removal when maintenance is needed. This dynamic capability resolves the contradiction by enabling both secure fixation for optimal image quality and easy accessibility for maintenance activities.

Inventive Principle:
Principle #15Dynamics

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

Enables precise alignment and easy maintenance of display devices, reducing visible boundaries and assembly time, while minimizing the impact on the devices and lowering manufacturing costs by allowing real-time adjustments and easy replacement.

Implementation Method 1

a magnet configured to rotate around a circumferential direction to tighten a step adjustment member screwed onto the LED base on a backside of the LED display tile

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP3667649B1Tiled display and method of assembling the same
Publication Date: 2023.05.31 LG DISPLAY CO LTD
  • EP3667649B1 patent drawingFigure 1A
  • EP3667649B1 patent drawingFigure 1B
  • EP3667649B1 patent drawingFigure 2

AI summary

There is provided a tiled display including: a plurality of display devices; a plurality of first magnets in contact with a surface of each of the display devices; a wall portion able to be attached to and detached from the display devices; and a plurality of second magnets disposed on a surface of the wall portion such that they are in line with the first magnets, respectively. The second magnets are movable in a direction perpendicular to the surface of the wall portion. Accordingly, it is possible to attach/release the plurality of display devices to/from the wall portion by forming an attractive force and a repulsive force between the first magnets and the second magnets.