LED display parameter series: What is the meaning of pixel pitch, how to choose?

LED display is everywhere in life, small to shop door head red word screen, big to outdoor full-color advertising screen. However, for the LED display terminology, laypeople do not necessarily understand. 【Shenzhen Weigu Electronic Technology Co. Ltd.】The author explains the meaning of "pixel pitch" in plain language from the perspective of the expert to the layman.

1. What is pixel pitch?

Dot pitch, pitch, pixel pitch, these three professional terms are the same meaning, refers to the LED display, a lamp bead center to the adjacent lamp bead center distance, in millimeters.

In the industry, the letter "P" in the word "pixel pitch" is also commonly used to refer to the point spacing for short. For example, the screen with 1.5mm point spacing is called P1.5, and the screen with 2mm point spacing is called P2. Other points are spaced apart, and so on. In addition, the pixel pitch is often called together with the product series name, such as the fine pixel pitch "VG1.25" means the 1.25mm pixel pitch display under the VG series, "VG2.5" means the 2.5mm pixel pitch display under the VG series.

With the progress of SMD and COB lamp bead packaging process, the pixel pitch can be less than 1mm and larger than 10mm. After almost 10 years of development, we have deep research and development capabilities, accumulated rich engineering experience, and the product point spacing covers 0-1mm,1-10mm,10+mm, which is in the leading position in the industry.

2. The importance of pixel pitch.

The smaller pixel pitch means that the pixel density is larger, the resolution is larger, and the viewing distance is closer, the image shown is more delicate, and the final human visual effect is better. Of course, costs are relatively high.

Conversely, the larger the pixel pitch, the smaller the pixel density, the smaller the resolution, the farther the viewing distance, the less delicate the image displayed, and finally in order to obtain a better and more delicate visual effect with a large point spacing, the viewing distance must be extended. Of course, costs are also relatively low.

Key Takeaways:

• Pixel pitch refers to the density of pixels

• A smaller pixel pitch indicates higher pixel density and higher resolution

• Pixel pitch is important because it influences viewing distance

• The smaller the pixel pitch, the closer the viewing distance

• The optimal viewing distance of your screen informs the pixel pitch value

3. How to choose pixel pitch?

From the above discussion, it can be known that the size of the pixel pitch and the viewing distance directly affect people's visual effect.

Indoors, the space is limited viewing distance size itself, in order to better and more subtle visual effect, generally choose the smaller pixel pitch. In the outdoors, there is no limit to the viewing distance of the space, and a smaller pixel pitch can be selected, but in order to lower the cost and higher the cost performance, a larger point spacing is generally selected.

In fact, there is no absolute standard formula for the conversion LED screen of viewing distance and point spacing in the industry.And everyone's subjective visual perception is different. The following author gives the conversion formula calculated by【Shenzhen Weigu Electronic Technology Co. Ltd.】 for reference: (distance unit: meters)

Minimum viewing distance (distance that can display a smooth image)=pixel pitch(mm)×1000/1000

The most suitable viewing distance (the distance that can display a highly clear picture)=pixel pitch(mm)×3000/1000

Farthest viewing distance = Height of screen(m)×30

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