Comparison between COB and GOB LED screens

LED Display: GOB vs. COB

1. Basic Definition

COB (Chip On Board)

LED chips bonded directly onto PCB without lamp brackets, fully encapsulated.

High-definition, ultra-fine pitch LED solution.

GOB (Glue On Board)

Based on standard SMD LEDs with full‑board transparent glue coating.

High-protection, cost-effective LED solution.

2. Key Performance Comparison

Item

COB

GOB

Pixel Pitch

P0.4–P1.2 (can reach below P0.8)

P1.0–P2.5

Display Effect

No grain, high contrast, low glare

Good clarity, slight graininess

Protection Level

IP40–IP65, anti-collision

IP54–IP65, waterproof, dustproof, anti-collision

Heat Dissipation

Excellent

Good

Maintenance

Module replacement only

Single LED repairable, low cost

Cost

Higher

Medium, cost-effective

3. Recommended Applications

COB

Command center, high-end conference room, TV studio, 4K/8K indoor screen, close-viewing HD scenarios.

GOB

Stage rental, exhibition, bar, shopping mall, semi-outdoor, humid/dusty environment, budget projects.

4. Recommendation Logic

- Choose COB if you need:

Ultra HD, short viewing distance, high-end indoor fixed installation.

- Choose GOB if you need:

High protection, rental use, outdoor/semi-outdoor, better cost performance.