How to install a videowall with LCD technology in control centers? (Part II)

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In the second part of this article, we will focus on the remaining steps for installing an LCD Wall in a control center. You can read here the previous steps where we talked about the assembly, the choice of supports, the associated equipment, aesthetics and the location of the equipment.

In this second part, we will delve into the remaining steps, which are equally important to ensure a successful installation and optimal performance of the LCD Wall in the control center and ensure an effective and impressive visual experience in the installation process, from the proper arrangement of LCD panels to the precise configuration of the controller and the necessary care to keep the system in optimal condition over time.

1. ORDER OF INSTALLATION OF THE SCREENS

It is essential to be clear about the assembly order for the screens since this must be in order by rows from bottom to top. It is recommended to initially position the monitors at a certain distance to later approach them with meticulous attention, since they are very sensitive to side impacts.

To achieve a uniform distribution of the images and maximize visibility, start with the bottom row of the videowall, and continue with the subsequent placement of the monitors in the upper rows, always beginning with a sufficient initial position to avoid bumps and adjusting the proximity between monitors. This will create an even distribution of images and help minimize gaps between screens and prevent accidents during mounting.

2. CALIBRATION AND START-UP OF SCREENS

The calibration and start-up of the screens is a critical step in the installation of a video wall, since it ensures that it works optimally, providing the best image quality. Proper calibration allows all videowall screens to display content consistently and accurately, avoiding uniformity and display distortion issues.

To achieve a proper calibration, it is important to follow certain key steps, including:

  • Adjusting the brightness and contrast of each screen individually: a suitable brightness will ensure that the content is seen clearly, while a well-configured contrast will provide adequate reproduction of shadows and details.
  • Resolution settings: Make sure each display is set to the same video resolution to avoid compatibility issues and ensure a crisp, clear image.
  • Aspect ratio settings: it is essential that all screens have the same aspect ratio, to avoid image distortions.
  • Verification of video signal reception: Once all the screens have been configured, it must be verified that each screen is receiving the video signal correctly and that the image is being displayed uniformly.

It is important to note that calibration and commissioning can be complicated processes and may require the use of specialized tools and equipment. Therefore, it is advisable to work with a qualified, professional installer to ensure proper calibration and successful commissioning.

3. CONTROLLER CONFIGURATOR

The graphics controller is the central component that manages and processes the video signal sent to the individual displays in the videowall.

Once all the LCD video wall displays are installed and running, it is necessary to configure the graphic controller to ensure a correct and consistent display of the content. This includes adjusting the resolution of the screens and their layout.

The graphic controller must be configured according to the desired grid arrangement, as well as registering all the sources that are going to be displayed from the video wall.

In particular, GESAB’s graphic controller units, DataWall, have an HTML5-based operating application that allows authorized users to select the grid, open fonts on the screen, place them in different positions, and save and retrieve system configurations.

As it is based on an HTML5 interface, it can be accessed from any device with a web browser (PC, tablet or mobile) and with a connection to the same network as the DataWall unit.

4. MAINTENANCE

Finally, to keep the LCD Wall working properly, it is important to carry out annual preventive maintenance by specialized technical personnel. It should verify the correct state of the connections, power supplies and state of the monitors. If damaged or worn cables are detected, it is important to replace them to avoid connection problems or loss of image quality.

It is also important to clean to remove accumulated dust and dirt. Specific instructions must be followed to avoid damage to the screens. Soft, non-abrasive cloths can be used together with appropriate cleaning solutions to remove dust, smudges, or fingerprints from the surface of the displays.

Sometimes a new calibration of the screens may be necessary to readjust its brightness and colorimetry to recover homogeneity throughout the viewing surface.

These are some of the practices that can be carried out to ensure the optimal performance of the videowall and prolong its useful life in control centers.

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