What it actually decides.
Pixel pitch is measured in millimetres, centre to centre. A 2.6mm panel has its LEDs 2.6mm apart; a 4.8mm panel, 4.8mm apart. Lower numbers pack more pixels into the same area.
It is routinely misread as a quality ranking, as though 2.6 were simply better than 4.8. It is not. It is a viewing-distance decision. The working rule of thumb is that the pitch in millimetres is roughly the closest comfortable viewing distance in metres — about 2.6 metres for a 2.6mm wall, about 4.8 metres for a 4.8mm one. Nearer than that and a viewer starts resolving individual diodes instead of an image.
Which is why the right pitch is set by the room. A ballroom where the front row is three metres from the screen wants a fine pitch. A festival field where nobody stands closer than fifteen metres does not — and paying for a 2.6mm wall there buys resolution no human eye in attendance will ever see, at a higher price per square metre.
It runs the other way too. A coarse pitch specified for a room with close seating produces a screen that looks correct in the photographs and grainy to the people who paid to be in the front row.
We own this equipment.
LED video wall rental — owned inventory, our own crew, and a site survey before anything is specified.