As indoor display demands move toward finer pixel pitch, higher reliability and better surface protection, COB (Chip On Board) LED display has become the mainstream choice for high‑end conference rooms, control centers, exhibition halls and monitoring rooms.
Many global buyers are confused about COB technical principles, performance gaps with ordinary SMD screens, and how to pick qualified COB products. As a professional LED display source factory, JERYO will systematically explain COB technology, list our full‑range COB product parameters, and share practical purchasing advice for your project decision‑making.
What Exactly Is COB LED Display Technology
COB stands for Chip On Board packaging technology. Multiple LED chips are directly bonded and encapsulated on the PCB board with integrated protective glue, forming an integrated luminous surface.
Different from traditional surface‑mounted SMD lamp beads which are welded individually, COB eliminates exposed pin risks, improves surface flatness, dustproof, waterproof and anti‑collision performance greatly, and is especially suitable for indoor fine‑pitch high‑definition display scenarios.
Core Advantages of COB LED Display Over Traditional SMD Screens
Combined with JERYO mass production experience, our COB products have obvious strengths:
- Superior surface durability: Matte finish + 4H surface hardness, scratch‑resistant, resistant to daily wiping cleaning
- Excellent visual experience: 9300K color temperature, 1920~3840Hz high refresh rate, no moiré when shooting with cameras
- Strong environmental adaptability: IP54 front protection rating, front maintenance design for easy on‑site repair
- Lower long‑term failure rate: Integrated encapsulation reduces dead pixel and moisture oxidation risks
- Uniform brightness consistency: Factory‑built flash calibration storage for unified screen color performance
Full Specification Parameters of JERYO COB LED Display Series
Below is the official parameter table of JERYO mainstream COB fine‑pitch product lineup, covering mainstream pitches from 0.62 to 1.87 for your direct project reference:
| Item | Specification Details |
|---|---|
| Dot Pitch | 0.62 / 0.78 / 0.93 / 1.25 / 1.56 / 1.87 |
| Lamp Board Resolution | 240270 / 192216 / 160180 / 120135 / 96108 / 8090 |
| Surface Process | matte finish |
| Surface Hardness | 4H |
| Display Unit Size | 27B: 600337.539.75mm35B: 60067539.75mm / 27B: 600337.539.75mm |
| Weight | About 4kg (27B 600337.5)About 7.9kg (35B 600675) / approx 4kg (27B 600*337.5) |
| Resolution | 960540 / 768432 / 640360 / 480540&480270 / 384432&384216 / 320360&320*180 |
| Total Pixel Quantity | 2560000dots / 1638400dots / 1137777dots / 640000dots / 409600dots / 284444dots |
| Circuit Type | common cathode(0.62/0.78/0.93 pitch), common anode(1.25/1.56/1.87 pitch) |
| Flash Calibration Storage | Have built‑in storage |
| Control System | Nova compatible |
| Brightness | 600nit (0.62‑1.56 pitch), 550nit (1.87 pitch) |
| Refresh Rate | 1920‑3840Hz adjustable |
| Contrast Ratio | ≥10000:1 |
| Color Temperature | 9300K |
| Viewing Angle | 160° wide viewing angle |
| Input Voltage | AC 100~240V 50/60Hz |
| Max Power Consumption (white balance 600nit) | 0.62: ~95w/box(600337.5mm)0.78: ~85w/box(600337.5mm)0.93: ~150w(600675)/~75w(60037.5mm)1.25: ~130w(600675)/~65w(60037.5mm)1.56: ~140w(600675)/~70w(60037.5mm)1.87: ~130w(600675)/~65w(60037.5mm) |
| Maintenance Method | front maintenance |
| IP Protection Rating | IP54 (Surface can be cleaned with clean water) |
| Operating Temp & Humidity | -10℃~+40℃ / 10%RH‑90%RH |
| Storage Temp & Humidity | -20℃~+60℃ / 10%RH‑90%RH |
Key Application Scenarios for JERYO COB Fine Pitch Screens
Combined with parameter characteristics, our COB series is perfectly matched with these high‑end indoor scenarios:
- Command & monitoring centers: high refresh + high contrast for long‑time stable monitoring display
- Enterprise high‑end meeting rooms: 4H scratch resistance, easy daily maintenance and cleaning
- Museum & exhibition halls: matte finish anti‑glare effect for visitor viewing experience
- TV studios: 3840Hz ultra‑high refresh eliminates camera shooting moiré
- Luxury retail flagship stores: fine pitch brings ultra‑fine close‑up display effect
Critical Factors To Check When Purchasing COB LED Displays
Based on factory experience, avoid these common purchasing pitfalls:
- Distinguish true COB from fake packaging: Confirm integrated chip encapsulation structure instead of ordinary SMD with coated surface
- Verify real surface hardness: JERYO standard 4H hardness resists daily scratch damage
- Check front maintenance design: Our front‑access structure avoids tedious rear‑space construction
- Confirm IP54 front protection: Only front‑side waterproof/dustproof design meets long‑term indoor use
- Match pixel pitch with viewing distance: 0.62‑0.93 for ultra‑close viewing, 1.25‑1.87 for conventional meeting spaces
- Check control system compatibility: JERYO COB series perfectly matches Nova mainstream control systems
Why Choose JERYO As Your COB LED Display Source Factory Partner
- Full in‑house production of 0.62‑1.87 full COB pitch lineup, one‑stop pitch selection for different projects
- Strict factory aging calibration for every batch to guarantee unified brightness and color consistency
- Common cathode design for small pitches greatly reduces long‑term power consumption
- Standard IP54 front protection + 4H hardness, mature mass‑production quality control system
- Professional overseas project technical team provides installation guidance and long‑term after‑sales support
- Factory direct pricing without middlemen, stable delivery cycle for bulk orders
Final Purchasing Suggestions For Global Buyers
COB fine‑pitch LED display is a long‑term high‑value investment, do not only compare pixel pitch and price. Focus on packaging craftsmanship, hardness rating, protection grade, refresh performance and factory QC capability.
JERYO’s full‑range COB products cover all mainstream indoor fine‑pitch demands, with complete test reports and stable batch consistency. If you have project demands for conference centers, monitoring rooms or exhibition halls, send your viewing distance, installation size and environment requirements to our team.
👉 Request Custom COB LED Display Quotation
