Hi~welcome to shenzhen xinmu display technology co., ltd.!
2025-10-13 77
Are you looking at P3 and P4 in the parameter table and getting confused? Or maybe I heard that the mall next door installed a P2.5 screen, but I don’t even know what P is? Don't worry, today we will explain the secret behind this letter.
Simply put, P value is the distance between two lamp beads , the unit is millimeters. For example, in P4, the lamp beads are spaced 4 mm apart. The smaller the number, the denser the dots on the screen. Think of a mobile phone screen - the denser the pixels, the clearer it is, right? The same principle applies to LED screens.
There is a real case: an exhibition used a P10 screen promotional video, but when the audience stood closer, they saw that it was all mosaic. Later, it was replaced with a P6 screen, and the same content instantly looked better. So, if you choose the wrong P value, all your money will be wasted.
physical tag
Most LED screen casings have parameter labels affixed to them, just like the nameplates on the back of electrical appliances. Focus on the words "Pixel Pitch" or "Pixel Pitch", the number following them is the P value.
control system interface
After connecting to the control software, turn to the "Screen Parameters" option in the system settings. Here you can not only see the P value, but also the actual running refresh rate, brightness and other real-time data.
Technical documentation
Regular manufacturers will provide a "Product Specification", and the second chapter must contain pixel structure parameters. If you can't find it in the documentation, it is recommended to change suppliers quickly.
Here is a comparison chart:
| Usage scenarios | Recommended P value range | Things to note |
|---|---|---|
| shopping mall window | P2.5-P4 | Note that the light transmittance should be ≥80% |
| sports venues | P6-P10 | Wind and rainproof structures must be in place |
| stage background | P3-P5 | Adjust brightness with light chasing system |
For example: we chose P6 for the fence screen we made for a stadium in Tokyo. It not only ensures that audiences 50 meters away can see clearly, but also does not make the audience in the front row feel that the picture is rough.
dynamic resolution
Don't just look at the P value number, ask whether it is a static or dynamic parameter. Some screens are marked P3 and will automatically reduce the resolution when actually playing videos.
Lamp bead attenuation rate
It is also a P3 screen. If the lamp quality is poor, it may become an actual P3.5 screen in half a year. It is more reliable to choose products with intelligent brightness compensation technology.
Splicing gaps
Large screens are made of small pieces, and if the gaps are large, the actual display effect will be compromised. Like the aluminum-magnesium-zinc alloy box we use, the seams can be controlled within 0.1mm.
Q: Is the smaller the P value, the more expensive it is?
A: Generally speaking, yes, but it depends on the specific technology. For example, our transparent screen can achieve P4 and maintain 86% light transmittance, which makes sense that it is more expensive than ordinary P4 screens.
Q: How to judge that the manufacturer does not have false standard parameters?
A: Bring a vernier caliper to measure the distance between lamp beads! Or see if there is a third-party testing report. Each of our screens must pass a fully automatic optical detector before leaving the factory.
Q: P value is directly related to clarity?
A: In 90% of cases, yes, but it also depends on the grayscale. Just like a mobile phone screen, a 1080p screen is equipped with 1 billion colors, which is more delicate than the 16.7 million colors of a 4K screen.
Editor's point of view: Choosing an LED screen is like going on a blind date. It's not enough to look at height (P value). You also have to look at connotation (gray scale), family background (strength of the manufacturer), and whether you can live a good life (after-sales service). Next time someone uses a professional term at you, just slap the vernier caliper on the table - you will know if it is a mule or a horse, just measure it!
for more product information and pricing, please contact us .