If you are confused about how to choose an appropriate direct-view LED display, then pixel pitch can play a significant role in determining it. It is a technical unit that is used to determine the LED display tiers and to signify the image quality and resolution. It enables LED display manufacturers to distinguish themselves from the competitors.
Other than that, buyers need to consider the following details in order to come up with the right LED display screen,DOITVISION collect the basic knowledge of pixel pitch and resolution:
What is Pixel Pitch
The distance from the center of the LED cluster/package to the next LED package, beside, below and above it measured in millimeters (mm) is referred to as pixel pitch. These packages are usually mounted on backplates and circuit boards, which are called modules.
These modules are grouped together to create larger display surfaces that are required for LED video walls. As for the cost, the wiring, manufacturing process and tiny LED lights in the modules are the important components.
Display and Pitch Resolution
For display assembly, the footprint of video walls is connected to the pixel pitch of the display screen. This idea is particularly important when a person has to create rental led video walls with specific resolutions, like 4K presentation screen.
Planning and Deploying LED Video Wall
Here, the worth mentioning fact is that an LED display module, having a 1.5mm pitch, contains more pixels in a module as compared to a 4mm version due to which, 4K resolution (3,840 x 2,160 pixels) is easy and convenient to go with. Not only this, organizations can also take advantage of this feature and get higher resolution by reducing the size of video wall and use fewer materials than usual.
Viewing and Pitch Distance
There is no doubt in saying that LED pitch is important while considering viewing distance. In case a person gets close to the display screen, he/she can see tiny pixels and gaps between them. That is the time when viewing experience is not satisfactory. So, what is the appropriate viewing distance? Precisely, it is when the visuals are smooth and there are no gaps.
While there are multiple theories about an appropriate ratio and measurement, most of the experts agree that 1mm is a good pixel pitch with 8ft viewing distance. The reason why viewing distance is getting a lot of importance is that it’s not just about the picture quality but project planning and expenses also need its assistance. For instance, one would admire a 1 mm pitch but if it is used at a place where the audience is 30 feet away, then there would be no point in investing on such a premium-priced product. A 3mm LED display screen can get the job done with the similar outcomes.
Nowadays, manufacturers use any of the following 3 methodologies to determine a reasonable viewing distance:
- 10x Rule: It is the easiest method to estimate the Visual Acuity Distance. The calculation is done as: 10 x Pixel Pitch = Estimate Viewing Distance. The resultant is usually in feet.
- Retina Distance or Visual Acuity: Referred to as a formulated method of calculation, it involves an acceptable distance to which, a 20/20 eyesight individual can go without complaining about pixelated image. The formula is: 3438 x pixel pitch (in feet).
- Average Comfortable Viewing Distance: Manufacturers used to estimate a comfortable viewing distance based on their observations and research. This subjective estimation is based on content resolution, type of content and person’s eyesight.
| Pixel Pitch | Visual Acuity Distance | Average Comfortable Viewing Distance |
| 0.90mm | 11ft 3in | 3.44m | 5ft 8in | 1.72m |
| 1.26mm | 14ft 1in | 4.30m | 7ft 1in | 2.15m |
| 1.58mm | 16ft 11in | 5.16m | 8ft 6in | 2.58m |
| 1.90mm | 22ft 7in | 6.88m | 11ft 3in | 3.44m |
| 2.50mm | 28ft 2in | 8.60m | 14ft 1in | 4.30m |
| 3.00mm | 33ft 10in | 10.31m | 16ft 11in | 5.16m |
| 4.00mm | 45ft 1in | 13.75m | 22ft 7in | 6.88m |
| 5.00mm | 56ft 5in | 17.19m | 28ft 3in | 8.60m |
| 6.00mm | 67ft 8in | 20.63m | 33ft 10in | 10.31m |
| 8.00mm | 90ft 3in | 27.50m | 45ft 1in | 13.75m |
| 10.00mm | 112ft 10in | 34.38m | 56ft 5in | 17.19m |
While these methodologies are useful, manufacturers do not completely rely upon their outcomes. Rather, they believe what is suitable for their customers, it will be the appropriate viewing distance.
How to Calculate Total Pixels in an LED Display Screen?
Well, the entire process is quite simple: if someone wants a 3 by 1m IP68 outdoor led screen, then he/she will have to start-off with converting the dimensions into square meters, by getting the product of base and height. So here, it will be 3m2 for an LED screen. The next step is to find the pixel pitch that will be the product of pixels per m2, which is almost 30,000 pixels.
Is it Fine or Not?
LED display manufacturers agree on the fact that buyers are more focused about getting LED display screens having 2mm to 2.5mm pitch. The reason behind is the balance created between budget practicalities and viewing needs. However, in a case where there is not much viewing distance or high resolution is required, 1.5mm pitch would work perfectly.
Wrapping Up
LED display pixel pitch is one of the important factors behind buyers’ decision making. They always focus on whether the picture quality is good or bad because it dictates their viewing experience and possibility of coming back to the manufacturer in the future.
While led display manufacturers are following the above facts, they are still making efforts to improve their LED technologies in order to come up with better and more efficient display screens in the future.
