ACCUEIL > Blog > LED extérieure inférieure à P2 : P1.25, P1.5 ou P1.875 ?

LED extérieure inférieure à P2 : P1.25, P1.5 ou P1.875 ?

Équipe d'ingénierie DOIT VISION

For an outdoor display below P2, the current FO choices are P1.25, P1.5 and P1.875. All three use the same 480 × 540 mm cabinet face. Compare the pixels available in the space you actually have, then test the smallest text in the customer’s artwork.

Translate the requested pitch into an exact model

A tender calling for a maximum pitch of 1.2 mm is different from an enquiry using “P1.2” as shorthand. P1.25 exceeds that maximum. Likewise, P1.875 is below a 1.9 mm maximum but above 1.8 mm. Quote the exact modèle FO and obtain agreement on any substitution.

FO configuration module 240 × 270 mm Armoire de 480 × 540 mm 4 armoires de large × 2 de haut
P1.25 192 × 216 pixels 384 × 432 pixels 1,536 × 864 pixels
P1.5 160 × 180 pixels 320 × 360 pixels 1,280 × 720 pixels
P1.875 128 × 144 pixels 256 × 288 pixels 1,024 × 576 pixels

Compare content on a fixed footprint

Every layout in the last column measures 1.92 × 1.08 m. The P1.5 layout maps a 1,280 × 720 artwork pixel for pixel; the P1.875 layout requires a smaller native version or scaling. Test the smallest timetable entry, price or logo before choosing the finest pitch. Fine detail that is absent from the source cannot be restored by adding pixels.

Same 1.92 × 1.08 m active face at three FO pixel pitches.
Same 1.92 × 1.08 m active face at three FO pixel pitches.

Match the site to the enclosure and brightness

All three listed FO configurations specify 4,000 nits, front and rear IP66 and front service. Check sunlight at the intended operating hours and how reflections affect the viewing position. A finer pitch adds samples to the image; it does not compensate for inadequate contrast at a sun-facing site.

Show the cable entries, drainage and module-removal path on the installation section. Ask which other components are accessible from the service face on the ordered assembly. Use its current drawing to set the installation depth and space around it.

Keep version information on the quote

Specify pitch, cabinet grid, active size, native resolution, brightness and service direction together. If a buyer can relax the pitch and needs more daylight brightness, evaluate standard Square separately. Its larger pitch changes the available canvas, so it is not a like-for-like substitute for FO.

QFP
Is FO P1.25 the same specification as a P1.2 request?
FO P1.25 has a 1.25 mm pitch. If the specification says “1.2 mm maximum,” this model exceeds that limit. If the buyer used P1.2 only as a product category, send the exact pitch and resulting screen resolution for approval. Keep that accepted designation on the quotation and spare-parts schedule.
Is P1.875 automatically interchangeable with P1.8 or P1.9?
Check the actual limit and the application. P1.875 meets a maximum of 1.9 mm but exceeds a maximum of 1.8 mm. A nearby numerical value also does not establish mechanical or electrical compatibility. For a replacement, obtain the existing module identification and connection details instead of ordering a spare against the rounded pitch name.
Can FO provide a native Full HD screen at any size?
Native resolution follows the whole-cabinet grid. In the example, four P1.25 cabinets across and two high make 1,536 by 864 pixels, even if the processor receives a Full HD input. If the tender specifies a native canvas, calculate both dimensions from the selected cabinet matrix, then verify that the resulting physical size fits.
Can a 4,000-nit FO screen suit every sun-facing site?
Check the actual orientation, shade, reflections and operating hours before accepting a brightness value. The listed 4,000 nits belongs to the selected FO configurations, not to every possible site condition. A representative content sample viewed under comparable light is a better basis for approval than pixel pitch or a generic outdoor brightness label alone.
Does front service allow installation flush to a wall?
Front service can help where rear access is restricted, but the chosen assembly still needs an accessible path for each replaceable part, connections and heat removal. Ask for a cabinet section and a layout showing the wall and trim. Set the finished depth from those project details instead of promising a universal clearance.
What should identify the supplied FO version?
Record the exact pitch, module and cabinet matrices, finished screen dimensions, brightness and service arrangement together. Add the ordered control equipment and any site-specific interfaces. That schedule lets the buyer compare the approved display with what is delivered and order compatible spares later, without relying on an informal designation such as outdoor P1.8.

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