LED SCREENS & VIDEO WALLS

Digital signage generally means commercial LCD panels and totems — a single sealed unit you mount and plug in. LED is a different category: a grid of modular cabinets, and almost every decision that matters — pixel pitch, brightness, cabinet depth, power draw, service access — is made before a single tile is hung, not built into a fixed product bought off a shelf. That's also what makes LED far brighter and able to be built to any size or shape, which is why it works on facades, columns and large walls where an LCD panel physically can't scale. The other practical difference is servicing: LED cabinets are modular with front or rear access, so a failed module is a tile swap rather than replacing the whole screen, which isn't how a sealed LCD panel works.

It comes from viewing distance, not from a spec sheet default. A boardroom where people sit two metres away needs a much finer pitch than a concourse column read from fifteen, because pixel pitch determines the distance at which individual pixels stop being visible and the image resolves as a picture instead of a grid of dots. Get it wrong in either direction and it's a real problem: too fine a pitch for the distance wastes money on resolution nobody can see, and too coarse a pitch for a close-viewing room means the image never resolves properly no matter how good the content is. We size pitch at survey against the actual nearest viewing position for that specific installation, rather than quoting a standard pitch and hoping the room works around it.

Yes. Segmented cabinets can wrap a column on all faces or follow a radius, which is how concourse and lobby feature installations are usually built rather than forced flat against a surface that isn't flat. The cabinets are engineered around the actual column or wall geometry rather than the installation being adapted to fit a standard flat panel, and the segmentation is detailed so the wrap reads as one continuous curved surface without visible faceting at the joins between cabinets. This is decided at the same stage as pixel pitch and brightness — against the specific room and structure, not as an add-on option — since a curved installation has different structural and viewing-distance considerations than a flat wall would.