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How to Choose a big Led Screen

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.

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.

What is Pixel Pitch

Pixel pitch describes the density of the pixels (LED clusters) on an LED display and correlates with resolution. Sometimes referred to as pitch or dot pitch, the pixel pitch is the distance in millimeters from the center of a pixel to the center of the adjacent pixel. Since pixel pitch indicates the amount of space between two pixels, a smaller pixel pitch means there is less empty space between pixels. This equates to higher pixel density and improved screen resolution.

So is it better to get 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 best Pixel pitch?

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 to calculate Pixel pitch on Screen?

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.