Technical FAQ

Both are sealed packaging routes, but they suit different rooms. COB gives the higher contrast and a matte surface, which helps in lit boardrooms and lobbies. MIP packages each pixel before assembly, which makes service and handling easier in bright rooms such as studios and command centres. XL supplies both and will quote the same room in each technology so the trade-off is visible on paper.

Start from the farthest viewer and the smallest text the screen will show, not from a catalogue habit. As a first estimate, pitch in millimetres is roughly the viewing distance in metres divided by two to three for comfortable reading; dense maps and small fonts need a finer pitch. Send XL the room drawing and content examples and we will confirm the pitch against both.

For broadcast and hybrid meeting rooms, specify above 7680Hz refresh with 16-bit grayscale, then verify the setting against the actual camera and shutter angle. A wall that looks correct to the eye can still band on camera. XL provides refresh and grayscale settings for the camera model used on site and, for studio projects, attends the camera test before acceptance.

Direct sunlight raises the black level, so contrast falls even if brightness is high. Outdoor series need 5500 to 6500 nits matched to orientation, plus automatic dimming for night. XL specifies brightness by facing direction and supplies a day and night schedule so the screen stays readable at noon without becoming a glare source after dark.

Yes, within a written procedure. The sealed COB face tolerates a soft cloth and a mild cleaner, and there are no exposed lamps to catch. Avoid sprays and abrasive pads. XL specifies IP65 front protection on public-facing COB modules and supplies a cleaning card with each project for facilities staff.

Common-cathode drive lowers the voltage across each pixel and reduces heat in the cabinet. XL's COB series is specified at up to 44% lower power than a conventional baseline, with the comparison conditions stated on the datasheet. In continuously running rooms, the saving also reduces air-conditioning load, which is often the larger long-term cost.

Gently curved glass is workable if the radius is confirmed at survey. Tight radii, glass that deflects under wind load, or unshaded panes that reach high surface temperatures are not suitable for film. In those cases XL recommends framed transparent cabinets instead. We supply film, holographic mesh and cabinets, so the recommendation follows the site.

A typical two-pane retail window takes one night with a two-person crew. Atrium runs and exterior facades take longer, and access equipment affects the schedule. XL supplies an installation checklist covering glass condition, ambient temperature, edge sealing and the first power-on test, and reviews it with the local installer before the date is fixed.

XL crystal film reaches up to 95% transparency. Higher transparency reduces light output per square metre, so the grade is chosen from the background behind the glass and the viewing distance from the street. A bright street-facing window usually needs a lower transparency and higher brightness than a shaded interior partition.

For COB and MIP walls, agree a spare module ratio with the project and store the modules in the conditions stated on the packing list. For film, include spare connectors and a small film section because repair is at film level rather than module level. XL documents the spare ratio and storage conditions in the handover pack.

Standard models ship in five to seven days after drawing approval; custom creative structures and large outdoor projects are scheduled from the approved drawing. Minimum order depends on the series: single cabinets are possible for samples, while film is quoted per surveyed pane. XL confirms both in the quotation.

XL ships CE, RoHS, FCC and ISO 9001 documentation with each batch, and can map specification sheets, test reports and packing lists to the tender schedule. For public projects we also provide brightness, flatness and dead-pixel acceptance records signed at handover.