P2.6 vs P2.9 vs P3.91: How to Choose the Right LED Display

P2.6, P2.9 and P3.91 are the three pixel pitches buyers ask us about most — and the choice between them decides how sharp your screen looks, how much it costs, and which video processor you need. They look similar on a datasheet, but they are built for different viewing distances, and picking the wrong one means paying for resolution your audience cannot see, or showing visible pixels to an audience standing too close. This guide compares the three side by side so you can choose with confidence.

1. What pixel pitch actually means

Pixel pitch is the distance in millimetres between the centres of two neighbouring pixels. P2.6 means a pitch of 2.604 mm, P2.9 means 2.976 mm, and P3.91 means 3.91 mm. The smaller the number, the more pixels fit into each square metre — and the sharper the image looks up close.

Pixel density per square metre: P2.6 packs 147,456 pixels into one square metre, P2.9 packs 112,896, and P3.91 packs 65,536. For comparison, P5 packs 40,000. A P2.6 wall therefore shows more than twice the detail of a P3.91 wall of the same size, but only your nearest viewers will notice.

2. The viewing-distance rule

A practical rule of thumb: the closest comfortable viewing distance in metres roughly equals the pixel pitch in millimetres. A P2.6 screen looks smooth from about 2.6 metres away, a P2.9 from about 3 metres, and a P3.91 from about 4 metres. At two to three times that distance, the image looks fully seamless and individual pixels disappear completely.

Use that rule backwards, from your audience to your screen:

• Meeting rooms, retail stores and showrooms, viewers 3–6 m away: P2.6 or P2.9.
• Conference halls and exhibitions, viewers 5–10 m away: P2.9 is usually the sweet spot.
• Concerts, festivals and stage backdrops, audience 8–25 m away: P3.91, the rental industry standard.
• Outdoor advertising viewed from 20 m or more: P5, P8 or P10 — coarse pitch is plenty at that distance.

Measure that distance before you shortlist any model — it decides the pitch more than any other factor.

3. Indoor vs outdoor: the same pitch plays a different role

All three pitches are available for indoor and outdoor use, but the environment changes what matters. Outdoor screens must beat direct sunlight, so outdoor brightness is 5,000 nits or higher, while indoor screens need 1,000 nits or more. Outdoor cabinets are sealed to IP65 against rain and dust; indoor P3.91 cabinets are rated IP45.

That is why the same pitch behaves differently in each setting. Indoors, viewers stand close, so the fine detail of P2.6 and P2.9 pays off — in a meeting room or a retail store, the audience is near enough to see every pixel. Outdoors, the audience is usually much farther away, so a P3.91 wall delivers the same perceived sharpness for less per square metre, while its high brightness keeps the image visible in daylight.

Our flagship rental model is the P3.91 outdoor screen: die-cast aluminium cabinets in 500×1000 mm and 500×500 mm sizes, built for stage and event use. P2.6 and P2.9 are the right call outdoors only when part of the audience stands close to the screen — for example, a stage backdrop with a front row a few metres away.

4. Cabinets and power: the same for all three pitches

All three pitches use the same rental cabinet system — die-cast aluminium cabinets in 500×1000 mm and 500×500 mm — so the choice of pitch does not change how the wall is built or transported. What does change with size is power. Each cabinet draws a maximum of 300 W and carries two 200 W power supplies sharing one AC input. On a 16 A branch circuit with a 20% safety margin, you can connect 9 cabinets at 220 V, 5 at 127 V, 5 at 120 V, or 4 at 110 V.

Plan power by counting cabinets, not by pitch: a 50 m² wall needs the same circuits whether it is P2.6 or P3.91.

5. Choosing the video processor

The processor is where pitch has a hidden effect, because finer pitch means more total pixels to drive. One processor port carries 650,000 pixels. Pick a processor that meets two conditions at once: the number of ports must be at least the number of zones, and the total capacity must be at least the total pixel count.

Our processor range: CMS130 (2 ports, 1.3 million pixels), CMS260 (4 ports, 2.6 million), VX600 PRO (6 ports, 3.9 million), VX1000 PRO (10 ports, 6.5 million) and VX2000 PRO (20 ports, 13 million). Small screens — no more than 2 zones and no more than 1.3 million pixels — run on a single CMS130.

Two examples show how it works. A 12 m² P3.91 wall has 786,432 pixels (12 × 65,536) across 2 zones, so one CMS130 is enough. A 20 m² P2.6 wall has 2,949,120 pixels (20 × 147,456) across 5 zones, so it needs a VX600 PRO (6 ports, 3.9 million pixels). The same 20 m² in P3.91 would need only a CMS260 — finer pitch means a bigger processor too.

6. Budget: where the money goes

Finer pitch costs more per square metre, because every square metre holds more LEDs. That money is well spent when your audience is close. But a P2.6 wall viewed from 15 metres looks the same as a P3.91 wall at the same distance — the extra pixels are invisible from there, and the extra budget is gone.

The practical rule: buy the coarsest pitch that still looks seamless from your nearest viewing distance, and spend the difference on a larger screen or a better processor — both buy more visible impact than invisible pixels. Quotations are valid for 7 days; production takes 15–20 days after the 30% deposit, and shipment follows once the remaining 70% is paid.

7. Quick decision guide

If you are still torn, match your project to the shortest description:

• Close-up indoor viewing — meeting rooms, retail, showrooms, exhibitions: P2.6 for the sharpest image, P2.9 if the budget is tight.
• Mixed indoor and outdoor events at medium distance: P2.9, the all-rounder.
• Concerts, festivals, stage backdrops and outdoor events: P3.91, the flagship rental screen.
• Large outdoor advertising seen from far away: step up to P5 or coarser, not finer.

Still unsure? Send us your screen size, the distance to your nearest viewer, and whether the screen is for indoor or outdoor use. Message us on WhatsApp at +86 155 7321 7152, or use the Request a Quotation button below, and we will recommend the right pitch and prepare a quotation for your project. Cabinets carry a 2-year warranty and the sender box 1 year.

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