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Case Study: Lincoln Harris Union Tower, North Carolina

Early in the development of the Lincoln Harris Union Tower (Charlotte, NC) designers determined that they needed a high-impact display system for the lobby of this impressive new 33-story, 850,000-square foot commercial use building. The vision was to entertain and inform visitors while providing tenants with a unique advertising platform.

Integration firm Cenero installed a 36’ tall by 64’ wide NanoLumens 4mm direct view LED videowall. Content includes custom, 4K/60 edits produced by Second Story; sources include 16 cable tuners and a Seneca PC powering the Unify artwork produced by Second Story. The huge, three-story videowall is driven by an Extron Quantum Ultra 610 Videowall Processor. The immersive lobby display became a big competitive advantage, and the building was majority leased well before its grand opening. The sheer size of the videowall installation combined with compelling imagery continues to be a key selling point for the building.

The custom 4K/60 content, served by the Seneca PC fills the entire videowall by itself. Alternatively, it can serve as the background for up to 16 source windows that can be freely placed anywhere on the display. Additional requirements included seamless source switching and system automation.

The Quantum Ultra upscales the source content to match the native 4096×2304 resolution of the videowall. Four outputs feed the Nanolumens LED controller with 2048×1152/60 signals. Custom output timing rates and EDID were loaded to the processor to support this unique resolution. A comprehensive set of window configuration presets facilitate ease of use and automated operation during business hours. The support staff can also monitor and manage the videowall remotely.

The Quantum Ultra supports the videowall’s native resolution of 4096×2304 with a modular architecture that allowed the configuration to match the design specs. Other key features include a 400 Gbps HyperLane video bus, frame-locked outputs, output overlap, and adjustable mullion compensation. Also, an embedded operating system that resides on a write-protected, solidstate storage drive and redundant, hot-swappable power supplies ensured reliable operation.

The videowall processor’s 10-card slot frame is configured with seven IIN$HDMI input cards and two OUT4HDMI output cards. The 16 cable tuners are directly connected to HDMI inputs. For the Seneca PC, an Extron DSC HD-HD 4K PLUS A HDMItoHDMI 4K/60 scaler converts video from single path to dual-path 4K/60 to feed into the videowall processor. The scaler also deembeds audio and sends it to the house sound system.

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