A spherical LED display — a self-supporting LED ball screen viewed from all directions — has become the signature centerpiece of science museums, shopping atriums and city landmarks. But a sphere is not a flat screen bent into shape; it is its own engineering discipline. Having delivered ball screens from 2 m to 26 m — including a 26 m-diameter full outer-sphere display in the Philippines — here is what actually matters when specifying one.
Step 1: Pick the Size Class
- 2–5 m-diameter exhibit spheres — gallery exhibits, brand activations, hanging spheres above lobbies. Fast to install, often interactive.
- 6–12 m-diameter atrium and museum spheres — the classic science-center centerpiece; visible from multiple floors, often combined with floor screens or show stages.
- 15–26 m landmark spheres — outdoor or building-mounted icons, engineered like media facades with full structural calculations. Our 26 m Philippines sphere and 6 m Hezheng landmark sphere sit at both ends of this class.
Step 2: Match Pixel Pitch to Viewing Distance
Spheres are watched close — sometimes from 2 m away in a museum. Indoor exhibit spheres typically run P1.8–P2.5; plaza and landmark spheres watched from tens of meters can relax to P4–P6 with higher brightness for daylight. Rule of thumb: minimum comfortable viewing distance ≈ 3× pitch in meters.
Step 3: Understand the Structure
Every curved panel is individually computed and numbered for its position on the sphere. The load path — panel, sub-frame, primary steel or building attachment — is designed against wind load (outdoor), seismic requirements and maintenance access. Outdoor spheres add IP65 waterproof modules, UV-resistant surfaces and drainage detailing. Ask any supplier for the structural calculation package early; it is where cheap spheres fail.
Step 4: Plan Content Mapping From Day One
Content on a sphere wraps 360° horizontally and vertically — files must be authored or mapped to the exact panel layout. We deliver a calibrated playback and mapping system with the sphere, so standard video assets (even fisheye or equirectangular formats) can be adapted without re-rendering the whole library.
Quick Specification Checklist
| Item | What to Confirm |
|---|---|
| Diameter & coverage | Full sphere, openable, or partial shell — and mounting (floor, hanging, building-top) |
| Pixel pitch | Set by closest viewing distance; indoor P1.8–P2.5, outdoor P4+ |
| Environment | Indoor / outdoor — IP rating, brightness, wind & seismic loads |
| Structure | Self-supporting steel vs building attachment; load data for your structural engineer |
| Maintenance | Front/rear service access, lift or catwalk strategy |
| Content | Mapping system, formats accepted, who authors the show |
| Certification | CE / FCC / UL 62368-1 for export markets |
A sphere is a landmark investment — the structure and content pipeline matter as much as the LEDs. Get the engineering package reviewed before you compare prices.
Have a site in mind? Send us the location, diameter idea and viewing distances via the inquiry form — we will return a configuration proposal with pitch, structure and content options within one business day.