Minimum viewing distance: The pixel value expressed as "mm" in the metric unit system is expressed as "mt". For example, for a screen with a 6mm pixel distance, the closest viewing distance will be 6 meters.
Ideal viewing distance: It is 3 times the pixel value expressed as "mm" in the metric unit system, expressed as "mt". For example, the ideal viewing distance for a screen with a 6mm pixel distance will be 18 meters.
Maximum viewing distance: It is expressed as "mt", expressed as 10 times the screen area expressed as "m2" in the metric unit system. For example, regardless of the pixel distance, the maximum viewing distance for a screen with a screen area of 10m2 will be 100m.
The above expressions are of course INDOOR/OUTDOOR, SMD/DIP/COB/etc. These are industry-accepted calculations made independently of the technologies and content to be used. The size of the screen content, especially the content expressed as TEXT, also affects viewing distances. A large character's view distance will be longer, and a small character's view distance will be shorter. The alphabet system used will also create differences in character size recommendations. For example; For text using the Latin alphabet, the character size must be at least 1/300 of the viewing distance.