COB Fine Pitch

COB P1.56

Name: COB P1.56 LED Display
Brand: XL Technology

A cost-balanced COB model for meeting rooms and exhibition walls at a 2.5-metre viewing distance.

1.56mm

Pixel pitch

600 / 1,000 nits

Brightness

>7680Hz

Refresh rate

Get Quote COB Fine Pitch

Product overview

P1.56 keeps the contrast and sealed surface of the COB range while reducing pixel count for rooms that do not need P1.25. It is the usual choice for a rollout across several meeting rooms or a large exhibition stand.

Every unit is assembled and tested in Shenzhen before packing. Cabinet drawings, pixel map and control-system settings are supplied with the shipment, so the configuration on site matches the quotation.

Meeting roomsExhibition standsShowroomsEducation walls

Specifications

Pixel pitch: 1.56mm
Brightness: 600 / 1,000 nits
Refresh rate: >7680Hz
Contrast: 200,000:1
Avg power: ≤250 W/m²
Cabinet size: 600 × 337.5 × 39mm
Cabinet weight: 6.1kg
Module size: 300 × 168.75mm
Grayscale: 16-bit
Front protection: IP65
Flatness: ≤0.05mm
Control system: Novastar / Colorlight compatible

Advantages

Engineering decisions behind COB P1.56, and what they change on site.

Lower cost per square metre

Fewer pixels and drivers than P1.25, with no visible structure at 2.5 metres and beyond.

Consistent COB surface

The same sealed face and matte finish across the series, so mixed rooms look identical.

Simple front service

Modules are removed from the front, which suits walls finished flush into a meeting room.

COB P1.56

Structure introduction

COB P1.56 is built on a COB module in which the RGB chips are bonded directly to the board and sealed as one surface. The 600 × 337.5 × 39mm cabinet carries the module, driver and power supply as a front-service unit.

600 × 337.5 × 39mm

COB module surface

The LED die and wire bonds are encapsulated in a protective layer. There is no exposed lamp to catch a cloth or a fingernail, which matters in busy lobbies and control rooms.

Flip-chip LED board

Flip-chip mounting improves heat transfer from the die to the PCB and supports the high contrast and low power figures quoted for the series.

Driver and power bay

Driver ICs and the power supply sit behind the module on a serviceable carrier, separated from the display face.

Rigid cabinet frame

The machined frame holds the module plane flat and provides the datum for adjacent cabinets, keeping seams consistent across a large wall.

Design details

The decisions that affect how COB P1.56 looks, installs and stays serviceable on site.

200,000:1 contrast

The black encapsulant and deep module structure reduce reflections, so dark content stays black under room lighting.

Sealed front surface

The COB surface can be cleaned without exposing lamps. This suits menu boards, reception walls and spaces with daily handling.

Common-cathode efficiency

Common-cathode drive lowers power and heat compared with standard drive, which reduces running cost on walls that stay on all day.

Flatness and seam planning

Cabinet flatness is checked before packing and the wall is planned from the cabinet datum, not from the visible module edge.

Front maintenance

Service is planned before the wall is built. Modules, cards and power supplies are replaced from the access direction agreed on the drawing.

Front-service module design

Front module service

The module is released from the front with a service tool. There is no rear clearance requirement, so the wall can sit close to a finished surface.

Surface cleaning

The sealed COB face is cleaned with a soft cloth and approved cleaner. There are no exposed lamps or masks to dislodge.

Batch calibration

Replacement modules are matched to the original batch. The calibration file and spare module list are supplied with the project.

Product credibility

Documented before it ships

COB P1.56 is built on the same production line as our project walls. Cabinets, modules and control settings are recorded per batch, and the documentation travels with the shipment so the site team is not working from memory.

ISO 9001

Factory process control

CE / RoHS / FCC

Product compliance

Batch tested

Aging and calibration record

2–3 years

Standard warranty

Project references Client feedback

Quality record

CE, RoHS and FCC documentation for the supplied configuration.
Aging and white-balance calibration record per batch.
Cabinet drawing, pixel map and control settings in the handover pack.
Spare modules matched to the original production batch.

COB selection and delivery

Choose COB by the room, not by the brochure

The right COB pitch is set by the closest viewer, the amount of ambient light and how long the wall runs each day. Use the three checks below before comparing price per square metre.

013–6 m: P0.9–P1.25

Start with the closest seat

For control rooms and executive rooms, the front row usually sits 3–6 m away. P0.9–P1.25 keeps text and data legible there; P1.56–P1.9 is enough when the nearest viewer is beyond 6 m.

02200,000:1 native contrast

Match contrast to the light

COB is specified where ceiling lights, windows or glass partitions would wash out a standard panel. The sealed matte face and deep black structure protect dark content in bright rooms.

03Front-service modules

Confirm the service side

A wall fixed close to a finished surface needs front service. Confirm the recess depth, cabinet format and whether the receiving card and power supply can be reached from the aisle.

Model comparison

Compare COB P1.56 models

Pitch, power, cabinet and the job each model is specified for. Open a model to see its cabinet build, service access and quotation route.

Ask for a model recommendation

Model	Brightness	Avg power	Cabinet	Specified for	Detail
COB P0.7 0.78mm	600 nits	≤200 W/m²	600 × 337.5 × 39mm	Control rooms · Command centres	View model
COB P0.9 0.93mm	600 / 1,000 nits	≤200 W/m²	600 × 337.5 × 39mm	Command centres · Network operations	View model
COB P1.25 1.25mm	600 / 1,000 nits	≤250 W/m²	600 × 337.5 × 39mm	Boardrooms · Corporate lobbies	View model
COB P1.56Current 1.56mm	600 / 1,000 nits	≤250 W/m²	600 × 337.5 × 39mm	Meeting rooms · Exhibition stands	Selected
COB P1.9 1.86mm	600 / 1,000 nits	≤280 W/m²	600 × 337.5 × 39mm	Glazed atriums · Public halls	View model

Typical values for the current series. Final brightness, power and cabinet detail are confirmed on the approved specification sheet.

Deployment playbook

Where COB earns its cost

COB is not the default answer for every indoor wall. These are the conditions where its contrast, sealed surface and thermal behaviour change the result on site.

Command and control rooms

Data, maps and camera feeds run continuously. A low-reflectance surface keeps dark backgrounds readable under task lighting, while front service avoids a rear plant room.

P0.9–P1.25 · 600–1,000 nits · 24/7 thermal plan

Boardrooms and executive floors

The wall is viewed from a table, photographed on video calls and must stay quiet. Fine pitch, camera-safe refresh and fanless cabinet options matter more than peak brightness.

P1.25–P1.56 · >7680Hz · low-noise drive

Retail and menu walls

The surface is cleaned, touched and exposed to daily light. The sealed COB face can be wiped without exposing lamps, and high contrast keeps food photography readable.

P1.25–P1.9 · IP65 front · easy-clean surface

Delivery control

From drawing to dispatch

COB walls are assembled as cabinets, not loose modules. The factory record follows the shipment so the site team can match cabinet positions, spare modules and control settings.

Handover pack

Approved cabinet layout and pixel map
Control settings and calibration record
Packing list, spare list and service notes

Request the current datasheet

1
Freeze the drawing
Approved layout, pixel map and power schedule
Cabinet layout, control points, power distribution and the service direction are fixed before materials are cut. The approved drawing becomes the reference for every later check.
2
Match the batch
Batch record and module position list
LED modules, driver ICs and power supplies are drawn from the same production batch where the order size allows, then labelled by cabinet position.
3
Age and calibrate
Aging log and calibration file
Assembled cabinets run through an aging cycle and white-balance calibration. Faults found at this stage are corrected before packing, not after arrival.
4
Pack for the route
Packing list, spare list and handover pack
Cabinets are packed against the transport method and site access. Each box is marked with its wall position and the cabinet drawing is included in the handover pack.

Buyer questions

Questions we answer before quotation

These are the points that most often change the specification after the first enquiry. If your question is not here, send it with the site details.

Ask an engineer

01Is COB better than SMD for a bright boardroom?

COB usually gives a calmer black surface and a more sealed front, which helps in rooms with windows and ceiling lights. SMD can still be appropriate where the room is controlled, the viewing distance is longer and the budget is tighter.

02How close can viewers stand to P0.9?

P0.9 is normally specified for a closest viewing distance of about 3 m. If the front row is closer, P0.7 should be reviewed; if the nearest viewer is beyond 4–5 m, P1.25 may deliver the same perceived result at a lower cost.

03Can the COB surface be cleaned on site?

Yes. The sealed front is cleaned with a soft cloth and an approved cleaner. Abrasive pads and solvent cleaners are avoided, and the cleaning method is included in the handover pack.

04What is the standard lead time?

Standard COB models are typically 5–7 working days after drawing approval and deposit. Custom cabinet formats, mixed batches or project-specific control requirements are confirmed on the quotation.

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