Location: Gulf Region, Middle East Application: Government Command & Dispatch Center Product: Nexus Series — Flip Chip COB Fine Pitch LED Display Pixel Pitch: P0.9375 Screen Area: 96 ㎡ Year: 2024

① PROJECT OVERVIEW

A government command and control center in the Gulf Region deployed 96 ㎡ of Choco Nexus P0.9375 Flip Chip COB displays across its primary operations wall — replacing a legacy LCD spliced array that produced visible bezels across critical surveillance feeds. The installation has operated continuously at 7×24 h since commissioning with zero module failures recorded.

② THE CHALLENGE

The facility required a seamless multi-source display wall capable of simultaneously rendering 32 independent HD video feeds from traffic, security, and emergency response systems — all at operator viewing distances of 1.5–2.5 m. The existing LCD video wall introduced 3.5 mm physical bezels between panels, fragmenting map overlays and reducing situational awareness during incident response. Critically, the procurement team required a verified 100,000-hour operational lifespan with a maximum mean-time-to-repair (MTTR) of 15 minutes per module, as any extended downtime carries direct public safety implications. The installation timeline was fixed at 21 days from site access to full commissioning — non-negotiable due to facility operational scheduling.

③ THE CHOCO SOLUTION

Choco specified the Nexus Series at P0.9375 — delivering 1,137,777 dots/㎡ across a 600×337.5 mm die-cast aluminum cabinet format. At the operator's standard working distance of 2 m, the pixel structure is visually imperceptible, rendering map overlays and HD video feeds as a single continuous image with no inter-panel disruption.

Flip Chip COB encapsulation was the decisive technical factor: with no exposed wire bonds or individual SMD lens components, each module achieves 360° physical protection against the micro-vibration and thermal cycling inherent in 7×24 h environments. The 10,000:1 contrast ratio and 3,840–7,680 Hz refresh rate ensured legible rendering of both high-contrast security feeds and low-luminance thermal imaging overlays within the same screen array.

Front-access maintenance design allowed Choco's commissioning team to complete the 96 ㎡ installation, calibration, and full-wall color uniformity verification within 18 days — three days ahead of the fixed deadline. All CCC, CE, RoHS, and FCC documentation was supplied at handover.

④ PROJECT OUTCOMES

• 96 ㎡ delivered in 18 days — 3 days ahead of the fixed commissioning deadline, zero rework required post-installation
• Zero module failures in 12 months — 7×24 h continuous operation since commissioning; 0% unplanned downtime recorded
• Sub-10-minute MTTR — front-access fast-lock module replacement verified at 8 minutes per module during acceptance testing
• 32 simultaneous HD feeds — rendered across a seamless COB surface at 1,137,777 dots/㎡ with no bezel interruption

⑤ CLIENT QUOTE

"The bezel-free surface and sub-10-minute module swap were the two requirements we could not compromise on. Choco delivered both, and the screen has run without interruption since day one." — Director of Infrastructure, Government Operations Authority (name withheld per confidentiality agreement)

⑥ PRODUCT SPECS

⑦ FAQ

What pixel pitch is recommended for a command center viewed from 2 m? P0.9375 is the standard specification for operator distances of 1.5–2.5 m. At this pitch, pixel structure is visually imperceptible at 2 m, meaning HD map overlays, text labels, and multi-feed video grids all render without visible pixelation. P1.25 is viable from 2 m but begins to show pixel structure on fine text at 1.5 m — relevant where operators lean toward the screen during incident review.

How does Flip Chip COB maintain performance in 7×24 h operation? Flip Chip COB eliminates the two primary failure modes in continuous-run environments: wire-bond fatigue from thermal cycling and SMD lens delamination from sustained heat exposure. With no exposed bonding wire and a sealed resin surface, Nexus modules maintain brightness uniformity above 97% through rated lifespan — verified at Choco's COB aging test workshop before shipment.

What is the typical lead time for a 96 ㎡ command center installation? Standard production lead time for Nexus Series is 15 working days from confirmed deposit. On-site installation of 96 ㎡ with a 4-person crew typically takes 5–7 working days, inclusive of cabinet alignment, module seating, and full-wall color calibration. Total project timeline from purchase order to commissioned display: 20–25 working days.