What is LED screen pitch?

LED displays point spacing are ubiquitous in life, ranging from small red signage screens at the front of shops to large outdoor full-color advertising screens. However, laymen may not necessarily understand the professional terms of LED display. The editor of the led display screen explains what the “dot spacing” is from the layman’s perspective in easy-to-understand language.

1.What is the point spacing?

Small Pixel Pitch HD Screen
Small Pixel Pitch HD Screen

Dot pitch, pitch, pixel pitch, these three technical terms have the same meaning, referring to the distance from the center of one lamp bead to the center of the adjacent lamp bead in the LED display, the unit is to mm.

In the industry, the letter “P” in the word “pixel pitch” is also commonly used to refer to the dot pitch for short. For example, a screen with a 2.5mm dot pitch is called P2.5, and a screen with a 3mm dot pitch is called P3. Other point spacing, and so on. In addition, the point spacing is often called together with the product series name.

With the advancement of SMD and COB lamp bead packaging technology, the current point spacing can be smaller than 1mm and larger than 10+mm. After more than ten years of development, Oika has deep research and development capabilities and accumulated rich engineering experience. The product point spacing covers 2.5mm ~ 10+mm, and it is in a leading position in the industry.

2.The importance of point spacing

The smaller the dot pitch, the greater the pixel density, the greater the resolution, the closer the viewing distance, the more delicate the displayed image, and the better the final visual effect for people. Of course, the cost is relatively high

Relatively, the larger the dot pitch, the smaller the pixel density, the smaller the resolution, the farther the viewing distance, and the less delicate the displayed image. Finally, for the larger dot pitch, better and more delicate visual effects can be obtained. The viewing distance must be extended. Of course, the cost is also relatively low.

3.How to choose point spacing

Conversion of viewing distance and point spacing

It can be seen from the above discussion that the size of the dot spacing and the viewing distance directly affect people’s visual effects.

Indoors, the space viewing distance itself is limited. For better and more delicate visual effects, generally choose a smaller point spacing. Outdoors, there is no limit to the viewing distance in space, and a smaller dot pitch can also be selected, but for lower cost and higher cost performance, a larger dot pitch is generally selected.

In the end, you will probably ask, knowing the viewing distance, how do I know how much dot spacing is appropriate?

In fact, there is no absolutely uniform standard formula in the industry for the conversion of viewing distance and point spacing. And everyone’s subjective visual experience is different. The following editor gives the conversion formula calculated by the Oika display screen for reference: (distance unit: meters)

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

The most suitable viewing distance (distance that can display a high-definition picture) = dot pitch (mm) × 3000/1000

The farthest viewing distance = screen height (m) × 30

The dot pitch is the distance between two pixels to reflect the pixel density. The dot pitch and pixel density are the physical properties of the display screen; the information capacity is the quantity unit of the information carrying capacity displayed at one time by the pixel density per unit area. The smaller the dot pitch, the higher the pixel density, the more information capacity can be displayed per unit area at one time, and the closer the viewing distance is. The larger the dot pitch, the lower the pixel density, the less information capacity that can be displayed per unit area at one time, and the longer the distance suitable for viewing.

For outdoor LED displays, P10 or P12 are generally used for short distances, and P16 or P20 are used for farther ones; while for indoor displays, P4, P5, and P6 are generally used. For small display sizes, P3 or P2.5 or even P3 or P2.5 can be used P1.9.

Therefore, the LED display is generally selected, the smaller the dot pitch, the better, the higher the resolution and the clearer the display. However, factors such as cost, demand, and application scope should also be considered comprehensively.


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