| 1 | Pixel Pitch and Viewing Distance | Match pixel pitch to the closest normal viewing distance, camera requirements, and the amount of fine text or graphics shown. | For many indoor perimeter applications, approximately 2.5–4.0 mm pixel pitch is a practical starting range. Smaller pitch increases image detail. | A smaller pitch generally raises module cost, processing requirements, and possible replacement expense. |
| 2 | Brightness and Light Control | Confirm adjustable brightness, stable low-brightness performance, and compatibility with indoor lighting conditions and broadcast cameras. | A typical indoor LED display may operate around 800–1,500 nits, with automatic or manual brightness adjustment. | Efficient brightness control can reduce electricity use and limit LED aging caused by unnecessary maximum output. |
| 3 | Control System Compatibility | Check supported input resolutions, refresh rate, scaling, synchronization, signal redundancy, remote monitoring, and integration with existing video sources. | For sports and camera-facing content, look for a refresh rate of at least 3,840 Hz and support for common digital video inputs. | A compatible controller can avoid signal converters, additional processors, installation labor, and future integration charges. |
| 4 | Refresh Rate and Image Quality | Evaluate motion smoothness, scan configuration, grayscale performance, color consistency, and the absence of visible flicker or scan lines. | A refresh rate of 3,840 Hz or higher is commonly selected for broadcast-sensitive indoor environments; test the actual display with cameras before purchase. | Higher image performance may increase initial cost but can reduce the risk of replacing unsuitable hardware after installation. |
| 5 | Cabinet and Mechanical Design | Inspect cabinet weight, module access, mounting method, cable routing, corner protection, and whether front or rear maintenance is possible. | Choose a structure that fits the venue’s load limits and installation geometry, with service access that does not require major dismantling. | Lightweight cabinets and accessible modules can lower structural reinforcement, installation time, and maintenance labor. |
| 6 | Durability and Operating Conditions | Review operating temperature, humidity limits, dust protection, vibration resistance, component quality, and documented environmental testing. | For ordinary indoor spaces, confirm a suitable operating range such as approximately 0–40°C and non-condensing humidity conditions, unless the venue requires more. | Appropriate environmental protection reduces premature module, power-supply, and control-card failures. |
| 7 | Power Efficiency and Heat Management | Compare typical and maximum power consumption, power-supply efficiency, ventilation needs, and heat accumulation in the installation area. | Request both maximum and typical power figures in watts per square metre; do not calculate operating cost from maximum power alone. | Estimate annual energy cost using: average kW × operating hours × electricity rate. Cooling and ventilation costs may also be relevant. |
| 8 | Redundancy and Reliability | Determine whether the system supports backup signal paths, spare power capacity, hot-swappable modules, error alerts, and pixel or module replacement procedures. | For high-visibility venues, consider dual signal paths and separated power circuits where a single failure would create unacceptable downtime. | Redundancy increases purchase cost but can reduce lost event revenue, emergency labor, and extended service interruptions. |
| 9 | Serviceability and Spare Parts | Ask about module interchangeability, calibration tools, diagnostic software, spare-part availability, technician response time, and warranty coverage. | Maintain a small on-site stock of critical modules, power supplies, receiving cards, and cables based on display size and operating risk. | Include spare parts, preventive maintenance, technician travel, software support, and expected downtime in the five-year budget. |
| 10 | Total Cost of Ownership | Compare purchase price, transport, structural work, installation, control equipment, energy, maintenance, software, replacement parts, and disposal. | Build a five-year ownership model and request itemized quotations with clear assumptions for operating hours, electricity rate, warranty, and service response. | Five-year TCO can be estimated as: initial system cost + installation + energy + maintenance + spare parts + software or service fees + removal costs. |