WHAT SHOULD YOU KNOW BEFORE BUYING A LED SCREEN?

GUIDE TO CHOOSE AND UNDERSTAND THE TECHNICAL PERFORMANCE OF A LED SCREEN

LED SCREEN BRIGHTNESS

Advertising LED screens have a higher brightness than LED TVs and other screens. Brightness is measured by using nits or candelas per m2. The higher the luminosity level, the higher the level of brightness.

 

Screens with higher brightness are pricier and use more electrical power. Hence, it is important to choose a screen with the right brightness for your needs, so you won’t pay more for something that is not necessary. Non-weatherproof indoor LED screens use LEDs with lower light output, but water-resistant outdoor LED screens need to use brighter LEDs.

 

Choose your equipment’s brightness depending on the lighting of the future screen location. * Shown on the picture.

INDOOR AND OUTDOOR LED SCREENS BRIGHTNESS

One of the most common misconceptions is related to the confusion between brightness and weather protection. This error is induced by dishonest sellers who offer expensive and excessive outdoor LED screens to customers who do not need them, just to get a higher commission. The deception consists in not informing that there are indoor screens with higher brightness, that can look as bright and sharp as outdoor screens.

 

These indoor LED screens do not have weather resistant features because they do not need it. This can save you a lot of money, because it makes the price of the screen much higher. The truth is that screen brightness is completely independent of its weather protection.

FREQUENTLY ASKED QUESTIONS ABOUT INDOOR AND OUTDOOR LED SCREENS

WHAT IS THE REAL DIFFERENCE BETWEEN OUTDOOR AND INDOOR SCREENS?

The real difference is the protection of its internal components against rain and other extreme weather conditions. The brightness of an outdoor screen is THE SAME as the brightness of a high-brightness indoor LED screen.

I WANT TO INSTALL A LED SCREEN IN A WINDOW DISPLAY. WHAT KIND OF SCREEN DO I NEED?

You need an indoor LED screen, since your screen will not be exposed to rain or any other external elements. You can choose the brightness of your screen depending on the sunlight your window displays receives during the day. If your shop window receives indirect light from the sun, you can choose standard or high-brightness screens. If your shop window receives an intense and direct sunlight, we recommend asking for a VERY HIGH LUMINOSITY LED screen.

WHY IS IT A BAD IDEA TO PUT AN OUTDOOR DISPLAY IN A SHOP WINDOW?

Why are you overpaying for features that you won’t use? Indoor LED screens with very high brightness offer the same or higher brightness levels. All this with the advantage of not having to pay extra for making screen frames and its components water-resistant.

CAN AN INDOOR LED SCREEN PERFORM WELL IN A WINDOW DISPLAY?

Of course. Indoor LED displays made by Visual Led are UV resistant, and are able to resist heat and dust. No matter how much sunlight your window display or showcase receives, the components of our screens will work perfectly. Some sellers of low-quality LED screens will tell you that you need an outdoor screen because the components of their screens are not prepared to receive prolonged sunlight exposure.

CAN AN INDOOR LED SCREEN PERFORM WELL IN A WINDOW DISPLAY?

It depends on the lighting conditions of the place where the screen will be installed. As a rule of thumb, indoor LED screens with very high brightness are used only in areas exposed to direct sunlight, like windows or window displays facing south. Depending on the incidence of sunlight, it may be advisable to opt for lower brightness screens, which have lower prices.

VIEWING ANGLE FOR LED SCREENS

The viewing distance is an important value to define the interval between two possible pixels. For example, if we have a 3 x 2m screen, we can choose a pixel pitch of 10 mm if we want an optimal vision from 8 m away. But if we want to reduce its viewing distance, making it closer, then it’s better to choose a pixel pitch of 8 mm.

SO, IS IT ALWAYS BETTER TO GET THE SMALLER PIXEL PITCH?

Not really. Remember that smaller pitches are more expensive. If we take the previous example (3×2 m LED screen) and set 10 m viewing distance, the image quality will be the same, whether the pixel pitch is 10 mm or 8 mm. Choosing a smaller pixel when it is not necessary is a waste of money.

HOW TO CHOOSE THE BEST PIXEL PITCH FOR A LED SCREEN

When buying a LED screen, doubts often arise. One of the most common is how to select the right pixel pitch. It is natural to want to get the best image quality. In fact, it is easy to find examples of  bad pixel pitch choices: distorted images that cannot be perceived correctly at any distance.

 

Some people (and sellers) believe that distance from the screen is the only variable that matters to get the best image quality. They mistakenly calculate pixel pitch based only on this and do not think about the size of the LED screen.

 

As technical advice, the first thing you have to do is to calculate the total number of pixels that has the screen we want to buy. The amount cannot be less than 30.000 pixels.

HOW DO WE CALCULATE THE TOTAL NUMBER OF PIXELS ON A SCREEN?

Very simple: you can check how many pixels are in one square meter of each pitch in the following table.

For example, if we want a screen of 2×1 m, it’s necessary to convert the size into square meters, which is done multiplying the base measurement by the height measurement. The surface of a 2×1 m screen is 2 m2. Now, we have to look for a pixel pitch value that, after being multiplied by the surface size, gives us a value greater than 30,000 pixels.

 

Let’s multiply the surface of our screen by the 10 mm pixel pitch (equivalent to 10.000 pixels/m2, according to the previous table). 2 m2 x 10.000 pixels/m2 = 20.000. Therefore, this value would not be valid for video: it would only be suitable for text viewing.

 

Let’s try with another resolution in 8 mm (equivalent to 15,625 pixels/m2, according to the previous table). In this case, 2 m2 x 15,625 pixels / m2 = 31,250. Now we do get a suitable value necessary for images and videos reproduction.

 

If you still have doubts about the pixel pitch you would need, it is better to get professional advice from experts with a long experience and hundreds of successful projects.

WHAT ARE THE BEST BRANDS OF LEDs FOR SCREENS?

Brand names are not a way to measure good quality, it is better to look for reliability. The reliability of a LED model is measured in rates per thousand. The higher rate per thousand, the better quality and reliability of the led.

WHAT IS THE MAINTENANCE ACCESS OF A LED SCREEN?

The maintenance access tells us where you can find and access the elements inside the screen.

 

Rear maintenance screens require a space behind the screen to get inside access. Sometimes, these screens can incorporate doors that must be fully operative to perform maintenance tasks. If you are installing a rear maintenance LED screen, be sure to leave the space necessary for staff access and door opening.

 

LED frontal maintenance screens are designed for wall installations or similar, where we will access their internal parts from the front. The frontal maintenance screens are slightly more expensive than those of the rear type, due to the mechanisms they integrate to grant a frontal access.