The Pitch of giant SMD screens is an argument often put forward by screen retailers as a guarantee of quality. However, the pitch is just one technical characteristic among many others that will define a screen. So what is the pitch of a giant screen? Nothing to do with the synthetic summary of a story or with the small filled brioche.
Pitch remains one of the major characteristics of giant SMD screens. Indeed, it will depend on and influence other factors. Understanding the notion of Pitch also means explaining the visual quality of an LED screen. This also helps to explain and modulate the cost of a giant screen according to its intended use.
First, it’s important not to confuse Pitch and Pixel. The pixel represents each point of light in an image on the screen. In the most frequent cases on an LED screen, each pixel is represented by an LED.
The pitch of a giant screen corresponds to the distance between the center of each pixel. Specifically, the distance that separates the center between two LEDs vertically and horizontally. It is also called pixel pitch, real pitch, or physical pitch. It is generally expressed in millimeters.
This data is symbolized by a P followed by a number, for example, P6 for a pitch of 6mm. This pitch will thus define the density of the LED per square meter. It is easily found in the technical details of digital SMD Screens because this data is essential.
THE RELATIONSHIP BETWEEN PITCH, IMAGE QUALITY, AND SIGHT DISTANCE
As mentioned earlier, the pitch is directly correlated to pixel density. That’s why it impacts the image quality. Indeed, the more the pixels are spaced out, the more the “empty” space between each of them will be large and visible. The image will then appear “pixelated” to us. So the smaller/finer the pitch, the clearer the visual rendering will be.
However, it is important to clarify that a thin pitch is not suitable for all situations. Indeed, a certain pitch will be interesting only if it is determined according to the visibility distance. Indeed, the value of the pitch will make it possible to know the optimal reading distance and vice versa.
The pitch thus makes it possible to define the minimum reading distance. On the other hand, it does not impact the maximum reading distance, which is dependent on the screen size. Thus, to determine the minimum distance to see a sharp image on the screen, the size of the pitch is thus converted into meters.
As a result, a pitch 6 screen, called “P6” with a distance of 6 mm between each LED will be seen clearly from a distance of 6 m. Similarly, for a 1.9 mm pitch screen, a distance of 2 m will then be sufficient. This is how we can determine the pitch of a screen according to the distance of visibility.
This is why it is not always necessary to put a very fine pitch when the reading distance is important. Especially since the density of LEDs will see a direct impact on the purchase price of the screen.