COB P0.7
0.78mm- Brightness
- 600 nits
- Contrast
- 200,000:1
- Avg power
- ≤200 W/m²
- Cabinet size
- 600×337.5×39mm
COB Fine Pitch LED Display · Product Series
COB fine pitch at 200,000:1.
P0.7 · P0.9 · P1.25 · P1.56 · P1.9
Chip-on-Board packaging seals each pixel array under a single protective layer. The result is 200,000:1 contrast, IP65 front protection and a surface that survives cleaning, contact and static discharge, without the moiré and glare of exposed SMD lamps.
Advantages
- 200,000:1 contrast · IP65 front
- Up to 44% lower power
- ≤0.05mm cabinet flatness
- >7680Hz · 16-bit grayscale
Models
All models share 200,000:1 contrast, >7680Hz refresh and 16-bit grayscale.
COB P0.9
0.93mm- Brightness
- 600 / 1000 nits
- Contrast
- 200,000:1
- Avg power
- ≤200 W/m²
- Cabinet size
- 600×337.5×39mm
COB P1.25
1.25mm- Brightness
- 600 / 1000 nits
- Contrast
- 200,000:1
- Avg power
- ≤250 W/m²
- Cabinet size
- 600×337.5×39mm
COB P1.56
1.56mm- Brightness
- 600 / 1000 nits
- Contrast
- 200,000:1
- Avg power
- ≤250 W/m²
- Cabinet size
- 600×337.5×39mm
COB P1.9
1.86mm- Brightness
- 600 / 1000 nits
- Contrast
- 200,000:1
- Avg power
- ≤280 W/m²
- Cabinet size
- 600×337.5×39mm
Advantages
200,000:1 contrast
Deep blacks and clean dark scenes, even under ambient light.
44% lower power
Common-cathode drive reduces heat and electricity cost.
IP65 front protection
Sealed COB surface resists dust, moisture and impact.
≤0.05mm flatness
CNC cabinets align without visible seams across large walls.
>7680Hz · 16-bit
Flicker-free on camera with 65,536 levels of grayscale.
Front-service modules
Hot-swap a module in minutes without rear access.
COB Series Specifications
| Parameter | P0.7 | P0.9 | P1.25 | P1.56 | P1.9 |
|---|---|---|---|---|---|
| Pixel pitch | 0.78mm | 0.93mm | 1.25mm | 1.56mm | 1.86mm |
| Brightness | 600 nits | 600 / 1000 nits | 600 / 1000 nits | 600 / 1000 nits | 600 / 1000 nits |
| Contrast | 200,000:1 | 200,000:1 | 200,000:1 | 200,000:1 | 200,000:1 |
| Avg power | ≤200 W/m² | ≤200 W/m² | ≤250 W/m² | ≤250 W/m² | ≤280 W/m² |
| Cabinet size | 600×337.5×39mm | 600×337.5×39mm | 600×337.5×39mm | 600×337.5×39mm | 600×337.5×39mm |
Typical values at 25°C, calibrated white balance. Cabinet size 600×337.5×39mm for all listed models.
COB Fine Pitch LED Display
Structure introduction
COB fine pitch display is built on a COB module in which the RGB chips are bonded directly to the board and sealed as one surface. The 600 × 337.5mm cabinet carries the module, driver and power supply as a front-service unit.
Series specification
01
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.
02
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.
03
Driver and power bay
Driver ICs and the power supply sit behind the module on a serviceable carrier, separated from the display face.
04
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 Fine Pitch LED Display looks, installs and stays serviceable on site.
01
200,000:1 contrast
The black encapsulant and deep module structure reduce reflections, so dark content stays black under room lighting.
02
Sealed front surface
The COB surface can be cleaned without exposing lamps. This suits menu boards, reception walls and spaces with daily handling.
03
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.
04
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 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 Fine Pitch LED Display 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
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.
Applications
Control rooms
24/7 monitoring walls with low heat and stable colour.
Boardrooms
16:9 cabinets sized for meeting-room walls.
Broadcast studios
Camera-safe refresh for live production.
Retail flagships
High-contrast product imagery at close range.
Exhibition halls
Seamless large-format walls for launches.
Healthcare & simulation
Fine detail for training and diagnostic review.
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.
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.
01
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
02
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
03
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
- 1
Freeze the drawing
Approved layout, pixel map and power scheduleCabinet 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 listLED 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 fileAssembled 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 packCabinets 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 engineer01Is 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.
Next step
Continue the COB decision
Use these pages to compare technologies, check installed references and prepare the information needed for a quotation.
Control room display guide
See how this series is specified against viewing distance, room light and installation constraints.
Open application guideInstalled references
Review project types, cabinet formats and the delivery scope used on comparable installations.
View case studiesDatasheets and drawings
Request the current specification sheet, cabinet drawing and control compatibility list.
Open downloadsTalk to an engineer
Send the wall size, viewing distance and site photos. We reply with a configuration and quotation.
Request a quoteControl-system compatibility confirmed with the quotationCE / RoHS / FCC documentation for the supplied configuration
Specify COB for your next wall
Send the room dimensions and viewing distance. We will confirm the pitch and cabinet count.