Tiled LED Display Front Maintenance Using Non-Contact Tile Release
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Solution Overview
Problem
Existing methods for maintaining tiled LED displays face challenges such as the risk of damaging lenses with tools, inconvenience due to heavy magnetic components, and instability during tile removal, especially with increasing resolution and decreasing space between LEDs.
Innovation Solution
A non-contact sensor, such as a magnetic sensor, is used to trigger a motorized mechanism that slides display tiles in and out of the display plane without requiring access through openings, utilizing driver nuts and magnetic pins for support and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a tool is inserted through an opening between adjacent LEDs to trigger a release mechanism, then the tile can be removed for maintenance, but the risk of damaging LED lenses increases due to limited space and operator error
Solution Approach 1:
The patent replaces the manual mechanical tool-insertion system with an automated magnetic release mechanism. Magnetic pins positioned on the support structure interact with a magnetic tool brought from the front, eliminating the need to insert physical tools through openings between LEDs and thus preventing lens damage while enabling tile removal.
Solution Approach 2:
The patent introduces magnetic pins as an intermediary between the support structure and the magnetic tool. These pins transmit the magnetic force without requiring direct contact between the tool and the tile, allowing force application from the front while protecting the LED lenses from mechanical contact.
2Ease of operation
If an iron plate is used for magnetic fastening to enable front maintenance, then tile removal becomes convenient, but the iron plate becomes heavy and difficult to install and transport
Solution Approach 1:
The patent divides the magnetic fastening system into separate components: magnetic pins are positioned on the support structure while corresponding magnetic elements are on the tile. This segmentation eliminates the need for a single heavy iron plate, distributing the magnetic functionality across lighter, separate elements.
Solution Approach 2:
Instead of using a large iron plate covering the entire tile back, the patent places magnetic pins only at specific localized positions where fastening is needed. This reduces the total amount of ferromagnetic material required, significantly reducing weight while maintaining effective magnetic attachment.
3Force
If a magnetic tool is brought close to the iron plate for fastening, then the magnetic force increases sufficiently, but the magnet can collide with LEDs and damage the plastic lenses
Solution Approach 1:
The magnetic pins on the support structure serve as intermediaries that transmit magnetic force from the tool to the tile. The tool interacts with these pins from the front, allowing sufficient magnetic force to be applied without the tool needing to contact or come close to the rear iron plate, thus preventing LED collision.
Solution Approach 2:
The patent changes the interaction dimension by positioning magnetic pins on the support structure rather than on the rear surface of the tile. This allows the magnetic tool to apply force from the front dimension, avoiding the need to approach the rear iron plate and thereby preventing collision with LEDs positioned between the tool and the plate.
4Shape
If there is no opening in the display tile for tool insertion, then the display maintains aesthetic integrity, but access to the release mechanism becomes difficult
Solution Approach 1:
The patent replaces the traditional mechanical keyhole access system with a magnetic field-based release mechanism. The magnetic tool can interact with the magnetic pins through the front surface of the tile without requiring physical openings, maintaining the seamless aesthetic appearance while enabling easy tile removal.
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 method allows for controlled and damage-free access to display tiles, ensuring aesthetic integrity and operational stability during maintenance without direct contact with the display panel.
Implementation Method 1
a non-contact sensor, such as a magnetic sensor, is used to trigger a motorized mechanism
Implementation Method 2
utilizing driver nuts and magnetic pins for support and alignment
Data Source
Figure 1~2A
Figure 2B~3
Figure 4~5
AI summary
A tiled display is described which allows removal of display tiles (30, 40) in a controlled manner as well as access to the back of a display tile of the tiled display without having necessarily an opening in the display tile through which a tool to trigger a release mechanism would have to be inserted. Some of the display tiles can have at least one cylindrical element fastened to the display tile by an intermediary of a fastener positioned at one end of the cylindrical element. The cylindrical element is fixed to such tiles with the fastener. An actuator is provided to pull in the display tile to fit within the plane of the tiled display by activating a non-contact sensor (90) with a dedicated non-contact device in a vicinity of the display tile until the tile slides in. The non-contact device emits a control signal received by the non-contact sensor.