| Business Objective | Primary use | Define whether the screen will be used for advertising, live events, retail messaging, presentations, public information, or a combination of uses. | Start with the use case Content type, viewing distance, operating hours, and audience size should determine the specification. |
| Location | Indoor or outdoor environment | Confirm exposure to sunlight, rain, dust, wind, temperature changes, humidity, and possible physical impact before selecting the cabinet and protection level. | Outdoor planning Use weather-resistant construction and verify the required IP rating with the supplier. Indoor screens generally require less environmental protection. |
| Image Quality | Pixel pitch | Pixel pitch is the distance between the centers of adjacent LED pixels. A smaller pitch normally provides finer detail at close viewing distances, while a larger pitch can be suitable for distant viewers. | Typical selection logic Close viewing: approximately 1.2–2.5 mm; medium distance: approximately 2.5–4 mm; long-distance outdoor viewing: approximately 4–10 mm or more. |
| Viewing Experience | Viewing distance and angle | Measure the nearest and farthest audience positions. Check horizontal and vertical viewing angles if people will watch from the side or from different floor levels. | Useful estimate A commonly used starting estimate for minimum viewing distance is about 1 metre per millimetre of pixel pitch, followed by an on-site visual assessment. |
| Brightness | Ambient light conditions | The screen must remain readable without creating excessive glare. Brightness control should support automatic or scheduled adjustment for changing daylight conditions. | Typical ranges Indoor applications often use roughly 500–1,500 nits; outdoor applications commonly require about 4,000–8,000 nits, depending on direct sunlight and local conditions. |
| Content Performance | Refresh rate and grayscale | Choose a refresh rate suitable for the content. Higher refresh rates help reduce scan lines and flicker in camera footage, while adequate grayscale supports smooth transitions and natural-looking images. | Content-dependent For ordinary signage, standard professional specifications may be sufficient; for broadcast, stage, and camera-facing use, request a high-refresh-rate configuration and test it on camera. |
| Screen Structure | Cabinet size and weight | Confirm module and cabinet dimensions, total screen weight, front or rear service access, mounting method, and the structural capacity of the wall, frame, roof, or ground support. | Engineering requirement Obtain a structural review for permanent or elevated installations. Do not rely only on the screen's display-area dimensions. |
| Power Planning | Power consumption and distribution | Request both average and maximum power figures. Plan circuits, cable routes, protection devices, grounding, ventilation, and access to disconnect equipment. | Allow operating margin Use the supplier's measured consumption data and reserve capacity for startup load, peak brightness, control equipment, and future expansion. |
| Reliability | Operating schedule and thermal management | Match the product to the planned daily operating hours. Evaluate fans, heat dissipation, cabinet ventilation, temperature limits, and protection against moisture and condensation. | Long-term operation Ask for documented operating-temperature limits, environmental tests, and a thermal management plan rather than relying on a generic service-life statement. |
| Supplier Selection | Technical capability | Select a supplier that can provide a site survey, optical simulation, structural coordination, electrical drawings, control-system setup, commissioning, and operator training. | Evidence to request Review relevant project references, test reports, installation procedures, spare-parts availability, and the qualifications of the installation team. |
| Supplier Selection | Warranty and service terms | Read the warranty exclusions and service response terms carefully. Confirm coverage for modules, power supplies, receiving cards, control equipment, labor, and transportation. | Contract clarity Document warranty duration, response time, replacement procedure, remote support, on-site support, and the responsibilities of both parties. |
| Installation | Permits and site survey | Check local requirements for planning permission, façade changes, electrical work, wind loading, road visibility, public safety, and advertising structures before ordering equipment. | Complete before fabrication Verify dimensions, mounting points, access routes, lifting equipment, cable paths, power location, network connectivity, and emergency access during the survey. |
| Installation | Commissioning and acceptance | Test brightness uniformity, color consistency, dead pixels, refresh performance, content playback, network control, power protection, weather sealing, and emergency shutdown procedures. | Acceptance checklist Record test results, photographs, configuration files, as-built drawings, user accounts, and training completion before final handover. |
| Maintenance | Preventive maintenance | Schedule inspections for modules, connectors, power supplies, fans, filters, cabinet seals, cables, grounding, support structures, and control-system logs. | Recommended practice Perform routine visual checks regularly, clean according to the supplier's instructions, and arrange professional inspections at least annually or more often in harsh environments. |
| Maintenance | Spare parts and repair access | Confirm whether modules and key components can be replaced from the front or rear. Keep compatible spare parts and record module locations and configuration data. | Reduce downtime Maintain a practical spare-parts plan based on screen size, operating hours, environmental exposure, and the supplier's recommended replacement items. |
| Total Cost | Lifecycle budget | Compare more than the purchase price. Include structural work, permits, electrical upgrades, installation, transportation, control software, energy, cleaning, repairs, spare parts, and future replacement. | Compare total cost of ownership Request an itemized quotation with equipment, labor, taxes, logistics, commissioning, warranty, training, and recurring maintenance listed separately. |