Traditionally LED screens have been made using individual, ‘discreet' LEDs, with a cluster of red, green and blue LEDs creating each pixel which were spaced apart evenly.  

In recently years SMD technology has enabled us to create LED screens with much higher resolution with mature techonoly supply chain of demand.

SMD LED screens use tiny ( the size of a pin head) Red/Blue and Green diodes, set very close together in a single package measuring only a few millimeters across.

SMD screens have much shorter viewing distances than discreet screens and because of their compact package size can be made with much higer resolutions.