How to estimate the best viewing distance for an LED display?

The easiest way to estimate the best viewing distance is based on the distance of two pixels of the LED display module. For example: P10mm outdoor LED display, this "10mm" means the distance of the two pixels nearby. You can estimate that approximately 10 meters is the nearest distance to watch the LED screen. And the 10M * 3 =30 M is the most suitable viewing distance. So, here comes the conclusion:

P10 LED display screen: best viewing distance: 10-30M

P12 LED display screen: best viewing distance: 12-36M

P16 LED display screen: best viewing distance: 16-48M

P20 LED display screen: best viewing distance: 20-60M

What is the farthest viewing distance? This is based on the height of the LED screen. For example, P10 LED display, if it is 3 meter high, then the farthest viewing distance is 3M * 30 =90M.

Here comes the final conclusion:

1. Color mixing distance, RGB three colors mixture to become a single color distance: pixel spacing (mm) * 500/1000

2. Minimum viewing distance that can show the distance of the smooth image: pixel pitch (mm) * 1000/1000

3. The most appropriate viewing distance to the viewers that can see a high degree of clear picture distance: pixel spacing (mm) * 3000/1000

4. The most distant viewing distance: screen height (M) x 30