Viewing Distance - choosing the right pixel pitch
As a general rule, multiply the pixel pitch by 10 to determine the optimum distance in feet that a wall should be viewed from. In a typical house of worship setting, higher pixel pitch LED walls will save money when a longer viewing distance is acceptable.
Since each pixel is represented by a single diode, LED walls produce the highest contrast image on the market, with the darkest blacks and have no backlights like an LCD display wall.