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QF Series

QF Series

Integrated cabinet
Modular design
Common cathode design
Support dual backup

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General Technical Specifications

  • Series Name: QF Series

  • Panel Technology: Advanced Fine-Pitch COB (Chip-on-Board) with Flip-Chip MicroLED Technology

  • Available Pixel Pitches: Features ultra-fine pitch configurations including 0.7mm, 0.9mm, 1.2mm, and 1.5mm (e.g., QF0.7, QF1.2) for pixelation-free, close-proximity viewing.

  • Standard Cabinet Dimensions: 600mm × 337.5mm × 37mm (Perfectly proportioned for native 16:9 widescreen video wall scaling)

  • Standard Operating Brightness: 600 cd/m² (nits)

  • Native Contrast Ratio: Up to 10,000:1

  • Refresh Rate: $\ge$ 3840Hz (Broadcast-grade, flicker-free camera playback)

  • Cabinet Weight: Ultra-lightweight at approximately 4.6 kg per panel

  • Application Category: Command Control Centers / Executive Meeting Rooms / High-End Corporate Showrooms / Premium Broadcast Studios

  • Electromagnetic Safety Compliance: Rigorously tested under strict EMC benchmarks, scoring a massive 40% safety margin below the standard Class A limit.

The Ledman QF Series is a high-performance indoor fine-pitch Ultra-HD LED video wall panel line powered by Ledman’s cutting-edge Flip-Chip COB (Chip-on-Board) encapsulation technology. Built with a highly precise die-cast aluminum integrated cabinet structure that offers excellent electromagnetic shielding, the QF Series is meticulously engineered to satisfy the elite visual demands of critical command control rooms, corporate boardrooms, high-end exhibitions, and luxury indoor advertising displays.

Key Features & Advantages

  • Advanced Flip-Chip COB Packaging: Utilizes next-generation flip-chip architecture directly bonded to the substrate. This slashes individual diode failure rates, optimizes thermal dissipation, and delivers striking Ultra-HD clarity alongside an ultra-high contrast ratio of up to 10,000:1 for deep, uniform ink-black color consistency.

  • Energy-Efficient Common Cathode Architecture: Implements an intelligent common cathode circuit design that splits power distribution directly to individual RGB chips. This cuts overall power consumption by up to 30% lower compared to traditional alternative indoor screens, vastly reducing heat buildup and operational costs.

  • Integrated Modular Cabinet System: Features a 100% modular internal engineering design where critical components—including power supplies, HUB boards, and receiving cards—can be rapidly uninstalled and maintained from the front face using wireless alignment tools. The thin die-cast frames guarantee perfectly flush, seamless panel-to-panel splicing.

  • High-Reliability Dual-Backup System: Supports complete power and signal redundancy routes (double power supply and signal backup). If a primary cable or transmission line encounters an unexpected fault, the backup system switches over instantly to secure uninterrupted uptime for mission-critical operations.

  • SoftView Display Comfort: Engineered as a uniform surface light source rather than a collection of harsh individual point light sources. This structural change emits a significantly softer, eye-friendly visual output that helps prevent operator fatigue and completely eliminates visible moiré effects under professional recording cameras.

  • High-Durability Multi-Layer Protection: Due to the dense protective sealing process of the COB layer, the display panel face is completely waterproof, dustproof, shockproof (impact-resistant), anti-static, moldproof, and moisture-proof, ensuring maximum structural resilience in high-traffic indoor areas.