Home / Services / Fine pitch COB LED installation — boardroom & home theatre
Permanent installation · Building LED screens since 2008 · Markham shop

Fine pitch COB LED screens, installed. Boardrooms and home theatres.

P0.9, P1.2 and P1.5 sealed COB cabinets — one continuous, wipeable, glare-free surface with no bezel, no lamp and no dark room required. Native 2K, 3K and 4K builds from 81″ to 271″ on a 600 × 337.5 mm 16:9 cabinet, 31 mm deep, serviced entirely from the front. Sizes, wall depth, power and structural loads published below.

Book a site survey Install size table
0.9 · 1.2 · 1.5 mm Native 4K to 271″ 31 mm cabinet · IP65 face 100,000 hr rated
Fine pitch LED video wall installed flush into a marble commercial lobby wall, playing an aerial cityscape at full brightness under ceiling downlights
P1.89mm lobby wall, built into a recessed drywall opening and trimmed flush — full contrast with every downlight in the ceiling on.
01 — Why COB

A screen you can wipe with a cloth and lean a chair against.

COB means chip-on-board: the diodes are bonded straight onto the board and sealed under one continuous resin layer, so the face of the screen is a single flat solid. Nothing protrudes to be knocked off by a coat sleeve, a chair back or a vacuum head — the failure mode that quietly ends conventional fine-pitch screens in rooms people actually use.

The same construction fixes the two things everyone notices in a finished room. The surface is matte and diffuse, so ceiling downlights and window light scatter instead of reflecting back as hot spots. And there is no bezel and no seam between cabinets: at 1.2 mm you are looking at a continuous image, not a tiled one.

Under it sits the reason to choose LED over a projector at all — the wall makes its own light. Full contrast and full colour with the lights up, the blinds open and the room in ordinary use, at 600–800 nits, dimmable right down for a dark cinema, behind an IP65-sealed face. Rated past 100,000 hours at half brightness: four hours a night for sixty years.

COB fine pitchProjector + screen
Lights up, blinds openFull contrastWashes out
Room depth needed55–85 mm of wallThrow distance + booth
Noise at the seatSilentFan noise
ConsumablesNone · 100,000 hrLamp or laser block
SurfaceSealed, wipeableFabric, marks
RepairFront module swapUnit service call
Speaker placementBelow / above / besideBehind the screen
02 — Install size table

Every build is 16:9, and the cabinet count decides the resolution.

One cabinet is 600 × 337.5 mm and exactly 16:9, so screens grow in 600 mm steps across and 337.5 mm steps up and never lose the aspect ratio. At P0.9 a cabinet holds 640 × 360 pixels, at P1.2 it holds 480 × 270 and at P1.5 it holds 384 × 216 — which is why the same 4K screen is 3.60 m wide at P0.9, 4.80 m at P1.2 and 6.00 m at P1.5. Pick the pitch from your closest seat, then read across.

Pitch Cabinet grid Screen size (W × H) Diagonal Native resolution Class Area Min. viewing Typical room
P0.9
0.9375 mm
3 × 3 · 9 cab 1.80 × 1.01 m 81″ 1920 × 1080 2K 1.82 m² 0.9 m Huddle room, 6-seat table
P0.9 4 × 4 · 16 cab 2.40 × 1.35 m 108″ 2560 × 1440 3K 3.24 m² 0.9 m Boardroom, spreadsheet & CAD work
P0.9 6 × 6 · 36 cab 3.60 × 2.03 m 163″ 3840 × 2160 4K 7.29 m² 0.9 m Executive boardroom, briefing centre
P1.2
1.25 mm
4 × 4 · 16 cab 2.40 × 1.35 m 108″ 1920 × 1080 2K 3.24 m² 1.25 m 10–14 seat boardroom — the common one
P1.2 5 × 5 · 25 cab 3.00 × 1.69 m 135″ 2400 × 1350 3K 5.06 m² 1.25 m 20-seat boardroom, training room
P1.2 8 × 8 · 64 cab 4.80 × 2.70 m 217″ 3840 × 2160 4K 12.96 m² 1.25 m Home theatre, lobby, town hall
P1.5
1.5625 mm
5 × 5 · 25 cab 3.00 × 1.69 m 135″ 1920 × 1080 2K 5.06 m² 1.6 m Media room, 3 m seating distance
P1.5 6 × 6 · 36 cab 3.60 × 2.03 m 163″ 2304 × 1296 3K 7.29 m² 1.6 m Home theatre, screening room
P1.5 10 × 10 · 100 cab 6.00 × 3.38 m 271″ 3840 × 2160 4K 20.25 m² 1.6 m Private cinema, auditorium

Minimum viewing distance follows the working rule that pitch in millimetres ≈ metres to the closest seat. Widths between the standard grids, portrait builds and 2.35:1 cinema shapes are made by changing the cabinet count in either direction — send us the wall and we return the grid.

03 — What the wall has to carry

Pick a build. Take the numbers to your contractor.

Depth, weight, circuits and sub-frame for the five builds we install most. These are the figures your electrician and general contractor need before anyone opens a wall.

A different size, a 2.35:1 cinema shape, a portrait wall or an odd opening → send the wall dimensions
2.40 × 1.35 m 4 × 4 cabinets · P1.2
Native resolution
1920 × 1080
Diagonal · area
108″ · 3.24 m²
Weight on the wall
72 kg · 22 kg/m²
Finished depth
55–85 mm
Power · avg / peak
0.4 / 1.5 kW
Electrical
1 × 15A dedicated
Sub-frame
Timber, into studs
Install on site
1–2 days
Closest comfortable seat
1.25 m
Survey this room

Loads and power are design figures for planning. Final structural details are confirmed on the survey against your wall construction, and a stamped drawing is provided where the building requires one.

04 — Two rooms, two different specs
Meeting rooms & briefing centres

Legible from the near end of the table, all day, lights on.

The failure case in a boardroom is not movie contrast, it is 9-point type in a spreadsheet seen from 1.5 m. That is a pixel-pitch problem, so P0.9 and P1.2 are the working range and the screen wants native resolution, not upscaling — a 108″ at 2560 × 1440 shows a full model without a squint.

Brightness
400–600 nits, auto-dimmed to the room
Sources
USB-C table plate, HDMI, Teams/Zoom room PC
Layout
Full screen, or split for a camera feed and content
Control
Wall keypad or touch panel, one-press on and off
Private home theatres

Cinema scale with the lights up — and no projector to feed.

With the front row 3 m back, P1.5 is fully resolved and buys the biggest screen for the money: 271″ native 4K on a 6 m wall. HDR10 in, 16-bit greyscale, and a black level that holds because the sealed COB face reflects almost nothing back from the room.

Brightness
50–150 nits calibrated for a dark room
Shape
16:9, or 2.35:1 built from the cabinet grid
Audio
LCR moves below or above the screen — plan it early
Sources
4K HDR players, Apple TV, console, matrix switch

The one thing an LED wall changes about the room

An LED wall is not acoustically transparent, so the left, centre and right speakers cannot live behind it. In practice the centre goes in a shallow soffit above the screen or a plinth below it, angled at the seats, and the L/R move just outboard of the frame. Decide this before the sub-frame is built — moving a speaker after the wall is closed is the one expensive mistake on these jobs. We design the screen, the frame and the speaker positions on the same drawing, and we build and finish the millwork in our own shop.

05 — Home theatre installs

In a living room, a media room, and mid-build.

Fine pitch COB LED screen built into a home theatre feature wall with slatted acoustic panels, a media credenza and a linear fireplace below

Built into the millwork

The screen sits inside a slatted acoustic surround with the credenza, fireplace and shelving built around it, so the LED reads as architecture rather than equipment. We design the screen, the sub-frame and the millwork on one drawing.

Large fine pitch COB LED screen mounted flush on a living room wall showing a streaming interface in a bright room with daylight from french doors

Daylight, streaming, no blackout

A P1.2 wall in an open living room with french doors and every downlight on — the picture holds because the wall makes its own light. In-ceiling speakers and the source rack go in during the same rough-in.

Home LED wall mid-installation with front modules removed, exposing receiving cards, power supplies and hub boards on the cabinet backs while the lower rows play content

Serviced from the front

Modules lift off the face to reach receiving cards, power supplies and hub boards with the wall still hanging and the rest of the screen still running. That is why a fine-pitch wall works where there is no rear access at all.

06 — How it goes in

Frame, cabinets, calibration, handover.

Rear of a fine pitch LED wall under installation — numbered cabinets on an aluminium rail and timber sub-frame with power and data looms

1 · Frame and rough-in

A steel or engineered timber sub-frame is lagged into studs or masonry and shimmed dead flat — the flatness of the frame is the flatness of the picture. Aluminium rails, dedicated circuits and CAT6 land before a single cabinet does. Every cabinet position is numbered on the drawing and on the frame.

Fine pitch LED wall part-way through installation, left half faced with cabinets and right half showing the open frame

2 · Cabinets and mapping

Cabinets hang on the rail row by row, locking to their neighbours so the seams close to nothing, then adjust to within a fraction of a millimetre at the joint. The processor is mapped to the grid, and the wall is colour and brightness calibrated cabinet by cabinet for a single uniform surface.

Finished fine pitch LED wall powered off — one continuous matte black surface with no visible seams, trimmed flush into the wall

3 · Trim and handover

Trimmed flush to the opening and handed over dark — one continuous matte surface with no visible seam, which is the real test of a fine-pitch install. You get the mapping file, spare modules and a receiving card on site, and an optional annual service and re-calibration visit.

07 — Built and running
The installed lobby LED wall playing video with on-screen text and graphics, seen from an angle across a marble floor
The same wall running video — legible off-axis across the full width of the lobby.

The P1.89mm lobby wall — still on, every day, since install.

A permanent fine-pitch wall recessed into a finished marble lobby: sub-frame into structure, flush drywall return, front service access, full brightness against a ceiling full of downlights and an open sightline down the corridor. Content runs unattended all day.

That job is the reason this page exists. Fine pitch has moved from lobbies into meeting rooms and living rooms — the cabinets got finer, sealed and cheaper, and COB made them robust enough for a room with people in it. Same crew, same shop, now at 0.9 mm.

Building LED screens since 2008 2,000+ events In-house crew, no subcontractors Markham shop & warehouse
08 — Spec sheet · sealed COB cabinet
Pixel pitch
0.9 / 1.2 / 1.5 mm
Cabinet
600 × 337.5 × 31.3 mm
Cabinet pixels
640·480·384 wide
LED packaging
Flip-chip COB
Brightness
600–800 nits
Module
150 × 168.75 mm
Viewing angle
160° / 160°
Greyscale
14–16 bit
Refresh
3840 Hz
Weight
4.5 kg · 22 kg/m²
Power avg / max
110 / 450 W/m²
Service access
Front, magnetic
Rated life
100,000 hrs @ 50%
Ingress rating
IP65 sealed face
Processing
Novastar TU15 Pro
Warranty
2 yr · spares on site

Cabinet aspect ratio 16:9 · die-cast aluminium · eight 150 × 168.75 mm modules at 96 × 108 px per cabinet · 409,600 dots/m² at P1.5 · Novastar A8s-Pro receiving cards · constant-current drive · blind-spot rate ≤ 0.0003 · AC110–220V · operating range −20 °C to +50 °C · signal to 120 m on CAT6, fibre beyond · best viewing 2–3 m at P1.5 · sources HDMI, SDI, HD-SDI, VGA, RJ45 through the processor · manufacturer datasheet and photometric report supplied for building submission.

09 — Straight answers

Fine pitch questions, answered plainly.

What is COB, and why does it matter in a real room?

Chip-on-board: the diodes are bonded to the board and sealed under one continuous resin layer, so the face is a single flat solid. It can be wiped clean, it survives a chair back or a shoulder, there is no bezel between cabinets, and the matte finish scatters downlight instead of reflecting it. That construction is what makes fine pitch practical in a room people touch.

0.9, 1.2 or 1.5 mm?

Work from the closest seat: pitch in millimetres ≈ minimum viewing distance in metres. A 10–14 seat boardroom wants P0.9 or P1.2; a 20-seat room is comfortable at P1.2; a home theatre with the front row 3 m back is fully resolved at P1.5 and gets a much bigger screen for it. Pitch also sets size — native 4K is 3.60 m wide at P0.9, 4.80 m at P1.2, 6.00 m at P1.5.

What are the standard install sizes?

Cabinets are 600 × 337.5 mm and 16:9, so screens step 600 mm across and 337.5 mm up and stay 16:9. Common builds are 81″, 108″, 135″, 163″, 217″ and 271″ — the full grid, resolution and area for each is in the install size table.

How much wall depth do I need?

The cabinet is 31.3 mm. With rail and adjustment hardware the assembly sits 55–85 mm off the structural wall. To finish flush we frame a 90 mm recess and trim to the screen edge. All service is from the front, so no rear access corridor is needed — which is what makes this work in a condo or a finished basement.

Power and structure?

110 W/m² average, 450 W/m² peak, and about 22 kg/m². A 108″ screen: ~360 W average, 71 kg, one dedicated 15A circuit. A 217″ screen: 1.4 kW average, 285 kg, three circuits or a small 208V panel. Load goes to a steel or engineered timber sub-frame lagged into studs or masonry — never drywall anchors.

Better than a projector for a home theatre?

In any room with ambient light, decisively — the wall makes its own light, so contrast holds with the lights up. No lamp, no throw distance, no fan noise. The honest trade-offs: higher cost, a structural wall and dedicated power, and the L/C/R speakers have to move out from behind the screen.

Can it do true 2K, 3K and 4K?

Yes, natively — the cabinet count is the resolution. 3 × 3 at P0.9, 4 × 4 at P1.2 or 5 × 5 at P1.5 all give 1920 × 1080; 6 × 6, 8 × 8 and 10 × 10 respectively give 3840 × 2160. A 4K source maps one pixel to one pixel with no scaling.

How long does it take?

Survey and drawings first, then two to six weeks for cabinets. On site, a boardroom screen up to ~5 m² is framed, hung, mapped and calibrated in one to two days; a large theatre wall is three to four. Most of the schedule is sub-frame and electrical rough-in, which is why drawings get agreed before the trades arrive.

What happens if a module fails?

Modules pull from the front magnetically, so a module or receiving card is swapped in minutes without dismantling the wall or touching the finish. Every install is handed over with spare modules and a card on site, the mapping file, and an optional annual service and re-calibration visit.

Do you install outside Toronto?

Our shop and warehouse are on Amber St in Markham. Toronto, Markham, Richmond Hill, Vaughan, Mississauga, Oakville, Brampton and Scarborough are standard; Hamilton, Kitchener–Waterloo, Niagara, Barrie, Kingston, Ottawa and Montréal are quoted with travel.

Can I rent one first to see it?

We can demo fine pitch, and our P2.6mm rental fleet is a fair way to see how a self-lit wall behaves in a lit room before committing to a permanent build. LED video wall rental from $600 →

Do you do lobbies and retail too?

Yes — commercial lobbies, reception walls, showrooms and restaurants, which is where we started with fine pitch. Same cabinets, brighter calibration, and content scheduling so it runs unattended all day.

Send us the wall. We'll send the grid.

Wall width and height, the distance to the closest seat, and what the room is for. Back within 48 hours: a cabinet grid, the finished screen size, depth, load and power figures, and a line-item budget — from the person who will be on site.

SPARK Show Production Inc — fine pitch LED installation
Amber St, Markham, Ontario
Toronto & the GTA · building LED screens since 2008

Survey and drawings are free within the GTA.