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LED poster displays transform retail environments, corporate lobbies, and event venues with plug-and-play portability and tool-free setup. The modular panel architecture enables seamless scalability from single-unit storefronts to large-scale video walls,

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Gravix NexusCOB Fine Pitch LED Display — COB chip close-up
NexusCOB Series — Why COB?

What Is COB LED Technology and Why It Outperforms SMD?

COB (Chip on Board) bonds LED chips directly onto the PCB, eliminating the visible black mask between pixels that you see on traditional SMD displays. The result is a perfectly seamless, high-contrast surface that performs flawlessly at any viewing distance — without pixel grain, color shift, or surface reflections.

  • Pixel pitch as fine as P0.9 — broadcast-grade quality at arm's length
  • Impact-resistant sealed surface — IP54, nano resin coating
  • 40% lower energy consumption than equivalent SMD displays
  • 100,000-hour rated lifespan — lowest total cost of ownership
Explore NexusCOB Indoor Series
FAQ

LED Display Buying Guide

Common questions from AV integrators, event producers, and facility managers worldwide.

COB (Chip on Board) bonds chips directly to the PCB — seamless surface, no black mask, impact-resistant. SMD uses packaged LEDs creating visible pixel gaps at close range. COB delivers contrast ≥10,000:1, uniformity ≥97%, and 100,000-hour lifespan. Best for fine pitch indoor use (P0.9–P1.8): studios, boardrooms, flagship retail.
A simple rule: minimum viewing distance (m) = pixel pitch (mm) × 1.5–2.

• P0.9–P1.5: Studios, control rooms, executive boardrooms (1.5–3m)
• P1.8–P2.6: Conference halls, retail flagships, trade shows (3–5m)
• P3.9–P4.8: Concert stages, arenas, sports events (6–10m)
• P6.25+: Outdoor billboards, highways, building facades (10m+)
Yes. Gravix provides full OEM/ODM services: custom cabinet shapes and dimensions, branded packaging, private-label firmware, compliance documentation under your brand. Our factory R&D team (100+ engineers, 50+ patents) can also develop custom pixel pitches or deep system integrations for enterprise projects.
All products are certified to CE, FCC, RoHS, and CCC. Atlas outdoor models include IP65 and wind-load test documentation. Full compliance packages are available for customs clearance, local authority approvals, and public tender submissions.
All products include a 3-year manufacturer's warranty. Extended 5-year options available. Standard lead time: 15–20 business days for stock configurations; 20–30 days for custom. Shipping from Shenzhen: 3–7 days air freight, 20–35 days sea freight. We handle all export documentation.
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