It is important to note that the screen size and the viewing distance play an essential role in determining the pixel pitch with a good resolution. The minimum viewing distance can be approximated by deciding on your audience and the location of your advertising LED display. For example, an advertising LED display is mounted on a wall outside a shop located in an area with a lot of car traffic and minimal pedestrian traffic. This screen should have a viewing distance of 8 meters, as it needs to be visible to car drivers because they are the primary audience in this scenario.

Similarly, the total screen size is also essential as, according to the research, a larger screen is more impactful than a smaller screen, irrespective of the screen resolution. Furthermore, all pixels, regardless of their pitch, will look the same at a certain distance. Thus, viewing distance is crucial for displaying a clearly defined image over an LED screen.

Pixel Pitch: As mentioned earlier, it refers to the distance between adjacent LED clusters on an LED screen. Viewers can view the screen closely without seeing the individual LED lights for a finer pitch. On the other hand, for a higher pitch, the minimum viewing distance increases.  A typical rule is that an efficient viewing distance refers to 10 feet for each millimeter of the pitch. In addition, individual LED lights turn visible at a range closer than the minimum viewing distance, and the whole experience is ruined.

Resolution: The resolution of the advertising LED display is of utter importance because the top quality of the LED display is very different from the top quality of the LCD. Eventually, it comes down to what is displayed, and the appropriate resolution since each LED display module consists of a few hundred pixels and not thousands.

Pixel Pitch is the distance between two LED pixel on the board.So lower the pixel pitch higher the resolution even for small screen and higher the pixel pitch lower the resolution for large screen. 

Resolution is an important factor to measure the visual quality of digital images, photos and videos. A higher resolution signifies the picture contains more pixels, which means it can display more visual information. As a result, a high-resolution picture is sharper and clearer than a low-resolution one.