The pixel pitch (i.e., dot spacing) of an LED display screen refers to the distance between adjacent pixels, which directly affects the clarity and viewing effect of the screen. Common LED display screen pixel pitch include P1.25, P1.56, P2, P2.5, P3, etc.

1. **P1.25 and below**: Display screens with this pixel pitch have extremely high pixel density and very delicate images, which are suitable for close viewing. However, in places such as churches, which usually have a large viewing distance, it may be too expensive and unnecessary.
2. **P2 to P2.5**: Display screens with this pixel pitch have achieved a good balance between clarity and cost, and are suitable for indoor places such as churches. It can not only ensure clear images, but also control costs.
3. **P3 and above**: Display screens with this pixel pitch are relatively affordable, but may be slightly inferior in clarity, and are suitable for places with a long viewing distance or low clarity requirements.

The viewing distance of the church is usually far away because the auditorium may be located in the middle and back of the church. Therefore, when choosing an LED display, you need to ensure that the screen content can still be clearly seen at the maximum viewing distance.

1. The relationship between viewing distance and pixel pitch: Generally speaking, the closer the viewing distance, the smaller the required pixel pitch; the farther the viewing distance, the required pixel pitch can be appropriately increased. In the church, due to the long viewing distance, a display with a slightly larger spacing, such as P2.5 or P3, can be selected.
2. Specific calculation: If the church’s auditorium is far away from the display (such as more than 10 meters), a display with a spacing of P2.5 or larger can be selected. At the same time, the pixel pitch selection can be further adjusted according to the viewing distance of the front row of the audience. For example, if the front row of the audience is about 5 meters away from the display, a P2.5 display can be selected to ensure a clear picture.

The choice of screen size needs to be determined according to the specific size and layout of the church.

1. Adapt to the church size: The screen size should adapt to the width and height of the church to ensure that the audience can fully see the screen content. At the same time, it is necessary to consider the installation location of the screen, such as whether it is hung on the wall or suspended in the air.
2. Consider the viewing angle: The larger the screen, the wider the viewing angle, but the distribution of the audience in the church also needs to be considered. If the auditorium is located on the sides or back of the church, a larger display screen needs to be selected to ensure that the audience in these locations can also see the screen content clearly.

Based on the above analysis, the following is a comprehensive recommendation for the LED display screen used in the church:

Spacing: P2.5 or P3, which can ensure clear pictures and control costs.

Viewing distance: Choose the appropriate spacing and screen size according to the distance of the church’s auditorium.

Screen size: Determine according to the specific size and layout of the church to ensure that the audience can see the screen content completely.

In addition, when choosing an LED display screen, other factors need to be considered, such as brightness, contrast, color gamut, refresh rate, etc. These factors will jointly affect the display effect and viewing experience of the display screen. Therefore, it is recommended to communicate with a professional LED display screen supplier when choosing to ensure that the most suitable display screen for the church is purchased.