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What is LCD Video Wall?

What is LCD Video Wall?

When discussing display technology, Liquid Crystal Display(LCD) is one of the most common in use today.

LCDs are very popular because they are conveniently thin and require little power.

From the name, LCDs use liquid crystals to polarize light and form a display, a technology first used in 1967.

This article will take you through everything you need to know about an LCD video wall. But first, let's answer the question, what is an LCD video wall?

Table of Contents

  • What Is LCD Video Wall?
  • How Do LCD Screens Work.
  • Polarization Of Light.
  • How Does Liquid Crystal Display Color?
  • Types Of Displays
  • Impact Of Liquid Crystal Displays
  • What Are Some Of The Advantages Of Liquid Crystal Displays
  • Disadvantages Of an LCD
  • Tips On Choosing Your LCD Video Wall.

So, What Is LCD Video Wall?

An LCD video wall is a screen setup that uses the light-modulating properties of liquid crystals aligned with polarizers to produce images. The video wall will consist of flat panels making up a prominent display.
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How Do LCD Screens Work.

To better understand how a Liquid Crystal Display works, we have to go back in history to the discovery of liquid crystals.
During the 1880s, a scientist named Friedrich Reinitzer was experimenting on a carrot. During this experiment, he realized that some liquids exhibit a liquid crystal state.
A liquid crystal state is a phase where a substance has both properties of solid and liquid at the same time. 
Reinitz later discovered that this liquid crystal could rotate the polarization of light. But what is the polarization of light?

Polarization Of Light.

Light is both a particle and a wave. To understand how liquid crystals work, we will focus more on light wave properties.
Light travels through vibrations in different directions, just like a wave. This light is referred to as unpolarized light.
If we pass the unpolarized light through a small slit, only light traveling in one direction could pass through. This light is referred to as polarized light. 
If we had two slits, one rotated 90°, the light vibration would be unable to pass through the second slit. 
It is where liquid crystals come in handy. With liquid crystals, we can rotate the polarized light in any direction.
With this technology, RCA produced the first liquid crystal display in 1967. However, it was unsuitable for home use as it required a lot of energy.
That was the start of the revolution of liquid crystal displays. The advancement of this technology came to realize the Liquid Crystal Displays we know today. 

How Does Liquid Crystal Display Color?

To make a color LCD, the display is divided into several rectangles referred to as pixels. Each pixel comprises three sub-pixels, each of which is an individually controlled LCD segment. 
We have a red, green, or blue color filter over each sub-pixel between the second filter and the protective glass. 
By controlling the light passing through each color filter, we can create any color we desire.
We can effectively come up with images and readable text through the combination of millions of pixels.  
That is precisely how a color LCD works. The more pixels an LCD has, the better the quality of images it will display.
Since liquid crystal displays portray high-quality images, they are often applied to make high-quality video walls. 
Here at BrWall, we offer a series of LCD video wall panels that you can use to display any content you want.

Types Of Displays

LCDs are classified depending on the light source. When it comes to providing a light source, there are three kinds of LCDs:

Reflective LCD

A reflective LCD uses a mirror to reflect ambient lighting into the layers of filters and liquid crystals.
An excellent example of a reflective LCD is that found on a simple calculator. It uses the least energy since no backlight is needed to function correctly.

Transmissive LCD

A light source, such as a fluorescent lamp or LED on a transmissive LCD, is directed to a diffuser to create a uniform lighting pattern over the LCD surface. 
An electroluminescent panel may also be used, which gives off uniform light over its surface. The backlight will then pass through the layers of the LCD.
Transmissive LCDs are primarily used on smartphones and even TVs. It is easy to see the image on the screen in the dark, but you'll have to increase the backlight in an area with ambient light, like the sun.

Transflective LCD

A transflective LCD uses a special polymer sheet between the backlight and the LCD. This polymer sheet is known as the transfection.
This transfection can pass and reflect light, giving you the best of both worlds. 
Transflective LCD can be viewed without a backlight but will offer one if needed.
The disadvantage of this display is that it can suffer from poor contrast due to the loss of light transmission.

Impact Of Liquid Crystal Displays

Liquid Crystal Displays have a significant impact on modern world technology. Companies have used this technology to manufacture smartphones, televisions, laptops, smartwatches, and computer monitors.
One of the most recent applications of LCDs is making video walls. They are preferred since they can improve the quality of a simple image, making a good impression on the viewers.
Even though there are other flat panel displays, such as OLED and plasma, LCDs are still the most popular. At least for now. 

What Are Some Of The Advantages Of Liquid Crystal Displays

Liquid crystal displays significantly impact the modern world regarding their usability. Their applications have been seen due to the various advantages that come with LCDs. 
Below are some of the advantages of Liquid crystal displays:

It lacks Geometric Distortion

Geometric distortion is the improper scatter positioning in the image output according to their accurate positioning in a proper image on a display plane. 
With LCDs, geometric distortion is a thing of the past. They offer a well-positioned image that will truly satisfy your viewing experience.

They Are Not Affected By Magnetic Field

Unlike other displays like cathode ray tubes, a magnetic field does not affect liquid crystal displays. 
It increases their usability even in companies where electromagnets are used often.

It Is Highly Reliable

Since liquid crystal displays consume very little power during operation, they will produce less heat.
Therefore, they will not require constant checkups to ensure they operate optimally. This feature makes LCDs very reliable for use in long-term operations.
That is why they are still the most common displays in the market, and they are preferred for constructing video walls. 
At brwall, we also have a series of liquid crystal displays and LCD video walls that will genuinely change your viewing experience.

Compact

LCDs are flat panels, and they do not weigh too much. This feature makes them very convenient to carry around. 
Since LCDs are compact, it is easier for companies to create more extensive displays, such as 60 inches or more. 
More extensive displays improve the viewers' viewing experience as they can see images and texts on screen without strain.

High Refresh Rate

Liquid crystal displays have a very high refresh rate. Viewers of the LCD may not notice a flicker when the LCD refreshes. 
It is because the pixels in the liquid crystal displays retain their state while the device is refreshing. 
It offers a good viewing experience, especially when the device is displaying important content.

Disadvantages of an LCD

Of course, every good thing has its downsides. This section of this article will look at some of the disadvantages of LCDs.

Uneven Backlighting

Older models of liquid crystal displays could suffer from uneven backlighting, and some specific areas would be brighter than others. This problem is mainly experienced around the edges of the display.

Limited Viewing Angles

Not all LCDs are affected by this problem. Those LCDs affected by narrowviewing angles will have varying brightness, saturation, color, and contrast levels.

You are more likely to notice this problem when you view this display on the side. However, with the latest technology, viewers are less likely to experience such a problem.

Tips On Choosing Your LCD Video Wall.

Video walls are crucial for companies. They help create awareness of their brand and even improve customer interaction with their brand.
Since video walls have a significant influence in determining the success of a particular brand, choosing the right one is very critical.
In this section of this article, we will share with you some tips you could use when choosing an LCD video wall. 
Follow the tips below to ensure that you choose a liquid crystal display that will serve you just right:

Location

It is imperative to know where you will mount your LCD. You should consider a location that people can easily spot. 
It is the only way to ensure you get the best out of your LCD video wall. A good location will increase the number of impressions you get per day, increasing your company's success.

Content To Display With Your LCD Video Walls

Before determining the content to display on your video wall, you must understand how it will impact your customers.
It is crucial to display content that is appropriate to all ages. Make sure your images are high quality, and your LCD will support it.
High-quality images will directly influence great impressions of your brand. You will enjoy the effectiveness of your LCD when you have great content to display.

Reliability

If you plan to use your video wall all round the clock, you should pick one that is up to that task.
It will disappoint you and your customers when your video wall shuts down due to maintenance issues.
As you choose your LCD video wall, make sure it is guaranteed to work as long as you wish without shutting down.
It is a good way to ensure that your video wall controller results are excellent.

Cost

Different LCDs have different prices. You have to choose an LCD that will serve your purpose. Expensive doesn't necessarily mean better. 
It is worth the investment if the LCD has all the features you are looking for. That is why it is essential to know what you want to do with your LCD before you go ahead and buy it.
Besides, it would be best to ensure that your video wall is within your budget. Don't forget to note down the cost of setting it up too.

Aspect Ratio and Size

The size of your display matters a lot. You would want a large collection that would be easily noticeable by customers.
Make sure you also consider your aspect ratio. A significant aspect ratio with a small display may cause the content to look disfigured.
In return, your content might look unprofessional, and you may not get the best out of your LCD video wall. 
To avoid disappointments, it is always a good idea to take note of the aspect ratio of your LCD video wall.

Flexibility Of Your LCD Video Wall

Your LCD video wall should be flexible in that it can serve your future needs without you having to add any other appliances. It will save you some money when you need to change the content of your video wall.

Therefore, it is vital to consider the purpose of the video wall now and in the future.  
Choosing an LCD video wall will be much easier based on what you want to do now and in the future.
We believe that if you follow the tips that we have shared with you above, you will be able to get the best LCD video wall.
In case you still have trouble choosing an LCD video wall, our team might help you get the product that is just right for you.
Here at BrWall, we have a live demo service where you can get hooked up with an expert who will take you through all our LCDs.
We will also offer you other display solutions to help you get excellent results out of your LCD video wall.

Conclusion

Liquid Crystal technology can make displays due to its rotating polarized light. 
Since LCDs are suitable for constructing video walls since they can produce high-quality images. 
When looking for an LCD video wall, it is always great to consider certain factors before you make a purchase. It is the only way to ensure that you get excellent results out of your video wall.

BRWall is a world-class manufacturer of professional video wall controllers. Their experts are always available to help you with any video wall solution needs. Book a demo here: brwall.com/live-demos  For support, visit brwall.com or contact us anytime at This email address is being protected from spambots. You need JavaScript enabled to view it..

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