screens are a type of electronic flat panel display that us

What is an LCD Display Screen?
LCD (liquid crystal display) screens are a type of electronic flat panel display that uses a liquid crystal glass and transparent electrodes to block or pass light through RGB pixels to display media.
LCDs in the digital signage world are typically used in LFD (large format displays) and tiled monitors/multi-screen tv/spliced display video walls, which is basically a type of video wall made of multiple tv’s combined to make one viewing screen.
LCD/TV display screens are cheaper, have slower refresh rates, and are generally thicker than other types of digital display, but you can still get a decent quality resolution from them.
How do I build my own multi-screen LCD video wall display?
STEP 1: Installation opening dimensions

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Observe the location where you will be installing your LCD video wall display. Get the measurements of the width, height, and depth of your opening space. Also, take note of how you will install the mounting frame. Will it be installed against concrete? in a steel frame? hanging from the ceiling? floor standing? or will it be mobile?
While you are at it, think about where you could have power points and how to run your data points to where you want to be controlling the LCD Display video wall. If you want to have all your control devices in another room, you might have to put in HDMI to ethernet extenders too.
STEP 2: Multi LCD display dimensions and configuration
The next thing you will need to do is plan the configuration of your multiple LCD screen displays. You can either have equal or unequal rows and columns. The simplest and cheapest way to this is with an equal number configuration and I would suggest using 2x2 or 3x3 for beginners. You will be able to source out cheaper video controllers, easier installation, easier serviceability, and will require you less effort to configure screen resolutions.
Equal rows and columns configurations:
Photo By: The Technologenius © 2020, 2x2 Matrix Configuration Video Wall
Photo By: The Technologenius © 2020, 3x3 Matrix Configuration Video Wall
Photo By: The Technologenius © 4x4 Matrix Configuration Video Wall
Photo By: The Technologenius © 2020, 2x2.3x3.4x4 Matrix Configuration Video Wall
Unequal rows and columns configurations:
Photo By: The Technologenius © 2020, 1x3.3x4.creative arrangement Matrix Configuration Video Wall
Photo By: The Technologenius © 2020, 3x4 Matrix Configuration Video Wall
Image for post
Photo By: The Technologenius © 2020, 1x3.3x4.Creatively arranged Matrix Configuration Video Wall
Once you have an idea of the display configuration you want, you need to find out what size LCD display screen will fit in your opening when installed in that configuration. source out a range of potentially available LCD screen monitors or TVs and get their overall sizes, and while you're there looking at the specs, get the mounting screw positions (you will need to know this later, typically it should be using the VESA standard).
Be sure that the overall dimensions of the complete LCD display video wall that you calculate, allows for space gaps all around the perimeter. A lot of TV mounting brackets are mounted onto the frame by lifting it over a hook, so the gap above the video wall should allow for this movement, but you can also find mounting kits with the press and eject, flip-up, and pull out capabilities.
LCD Display Video Wall Dimensions
Photo By: The Technologenius © 2020, LCD Video Wall design dimensions
So as a case study:
lets say you are mounting your LCD video wall against a concrete wall with an opening of 2.3m x 2.3m. You want to install a configuration of 2x2 matrix LCD multi screen horizontal display video wall with 16:9 resolution. You minus 100mm all around the opening size to leave you some room for installation, which then leaves you a dimension of 2.1m x 2.1m.
you divide 2.1m by 2 screens to give you the estimated dimension of a single LCD Screen (2100mm/2 = 1050mm). For a max width of 1050mm you can source out a 46'’ LCD screen with a bevel (the frame of your display screen) of 3.9mm which has a dimension of about W1024mm x H578.6mm (that includes the total of the viewing dimension plus the bevel size on either side of the viewing display).
Therefore your overall multi screen LCD video wall dimension is W2048mm x H1157.2mm (2.04m x 1.1572m), for 2x2 matrix configuration of 46'’ LCD display screens.
So now that you know the hard way of planning your dimensions and LCD screen sizes, the easier way is to source out a complete package for a 2x2 matrix LCD video wall from one supplier and just give them your opening size with the 100mm gap all around. They will recommend you the screen size and also include any mounting equipment required.
STEP 3: LCD display video wall controllers
Source out your LCD video wall controller, also known as an HDMI matrix controller, and check that it has the correct amount of outputs for the number of displays that you intend to use and that it's capable to control the resolution you want to display. It is also worth mentioning that some LCD display screens have inbuilt video wall capabilities in them and does not require you to purchase an extra controller.