An LED processor is specialized hardware that bridges standard video sources and LED display technology. It's an essential component in most LED wall installations, responsible for signal processing and panel control.
Core Functions
Input Processing
- Accept multiple video sources (HDMI, DisplayPort, SDI, DVI)
- Decode compressed streams
- Switch between sources seamlessly
Scaling & Mapping
- Scale content to match LED wall resolution
- Map video output to physical LED panel arrangement
- Handle non-standard configurations (curved, L-shaped, artistic)
Color Processing
- Calibration data management
- Gamma correction
- Color temperature adjustment
- Brightness control
Data Conversion
- Convert video to proprietary LED protocols
- Generate data streams for receiving cards
- Time the data transmission to receiving cards
Panel Control
- Power management
- Temperature monitoring
- Module status reporting
- Firmware updates to receiving cards
LED Processor Brands
Major manufacturers include: - Novastar: Popular for rental and fixed installations - Colorlight: Wide range from basic to broadcast grade - Brompton: Premium broadcast and virtual production - Megapixel VR: Specialized for LED volumes - ROE Visual: Integrated with their LED products
Each brand uses proprietary receiving cards and protocols, so the processor must match the LED panels.
Processor Categories
Entry-Level
- Basic scaling and source switching
- Single output, limited resolution
- Small installations
Professional
- Multiple inputs and outputs
- Advanced color processing
- Medium to large installations
Broadcast/Premium
- Genlock and frame sync
- HDR processing
- On-camera LED volume support
- Mission-critical applications
Do You Always Need a Processor?
Some LED configurations accept direct HDMI input to receiving cards, bypassing dedicated processors. This works for: - Simple, single-source installations - When CMS software handles all processing - Cost-sensitive projects with basic needs
SPARC integrates with major LED processor brands, providing unified control regardless of the underlying hardware while adding advanced content management capabilities.
