What does P-number mean?
LED display screen can be seen everywhere in our life. We often hear the saying of P-number.
P of LED display screen means “point” in English. What does P of LED display screen mean? It refers to the distance between the midpoint of two lamp beads. For example, the distance between the midpoint of two lamp beads is 2mm for LED display P2, and the distance between two lamp beads is 3mm for P3. If extended, LED display P2 is more suitable for viewing, and the viewing distance is 2m away. If viewed in a place of 1m, the effect is not very good. Similarly, LED display P10, the distance between two lamp beads is 10 mm, and the viewing effect is particularly good at 10 meters away. I believe you already know what led display means.
In addition, it should be noted that the smaller the number of P on the LED display, the clearer it is, and of course, the more expensive it is. In other words, in principle, P2 on the LED display is clearer than P10 on the LED display, and the price is more expensive. Is it true that the clearer the better, the more expensive the better? No, it depends on your needs and viewing distance. It’s just right.
When it comes to the meaning of LED display, mini optoelectronics can popularize science for everyone. LED display can be divided into indoor and outdoor, and the general models are p1.25, p1.56, p1.667, p1.875, P2, p2.5, P3, P4, P5, P6, P8, P10, etc. As for which model to choose, it depends on your budget, needs and viewing distance. If you ask a professional engineer, you will get a professional answer.
In addition, we need to remind you that led display is a big project with high cost, complex structure and long service life. It involves the strength of product manufacturers, product quality, price, construction, after-sales and other aspects. We must not only compare the price, but also comprehensively compare the above mentioned aspects.
What is the pixel pitch?
The pixel pitch is center to center distance of adjacent pixels measured in millimeters. In a plan term, pixel pitch shows the gap between the pixels of LED display. The smaller pixel pitch means there is smaller empty space between the pixels and there are more number of pixel, results in higher resolution and higher image quality. Figure below illustrate the pixel pitch for a high resolution SMD LED module and standard resolution DIP LED module.
What is effect of pixel pitch size on image quality?
Pixel pitch determine the resolution, minimum viewing distance and best viewing distance of LED screen. The smaller the pixel pitch, the more pixel and results in more details and higher image quality. So if you need to show high resolution images or video on your display, you need LED display with small pixel pitch. The following figure shows the pixel pitch effect on image quality.
Pixel pitch affect the viewing distance too. The minimum viewing distance is the distance that you can watch image and video with acceptable level of pixilation. The smaller pixel pitch, the smaller gap between the pixel and less pixilation of the image. Therefore, the viewer can stand closer to your display.
How to choose the best Pixel Pitch size?
To choose the optimum pixel pitch two factors should be considered, the viewing distance and the required image resolution. Smaller pixel pitches are better all the time and deliver you better image quality but, it costs more. You may decrease the expenses of LED display buy using larger pixel pitch and still have almost same image quality if the viewing distance is longer than best viewing distance. The best viewing distance of a pixel pitch is the distance that your eyes won’t be able to the gaps between pixel anymore if you go further away.
Take an LED sign with P10 modules (pixel pitch of 10mm). The minimum viewing distance for P10 is 10m and the best viewing distance is 20m. So, if people watch it from 10m to 50m away, they can see an acceptable image quality with a fading level of pixilation from 10m to 20m and a very good image quality after 20m. So you may want to increase the image quality using P8 or even P6 module for close range. But If the viewing distance was from 20m to 50m, there was no point to use smaller pixel pitch with higher resolution. Because, the viewing distance was already more than best viewing distance of P10.
As a rough estimation, P10 (10mm pixel pitch) is suitable for any outdoor application with viewing distance of 10m and more. P8 or P6 (6mm and 8mm pixel pitch) can also be used if target audience are in closer distance. For indoor applications, P6 may suit any advertising needs with viewing distance of 6m and more. P4 (4mm pixel pitch) can also be used if your audience are closer such as LED video wall in retail environment. For better estimation of pixel pitch you can use the following table.
|LED Modules||Pixel Pitch||Minimum Viewing Distance||Best Viewing Distance|