Knowledge & Support
What’s the Difference Between SMD, COB, and Micro LED?
When selecting an LED display, the type of LED packaging technology plays a critical role in the display’s performance, durability, and cost. The three main types used in modern LED displays are SMD (Surface-Mounted Device), COB (Chip-on-Board), and the newer Micro LED technology.
✅SMD (Surface-Mounted Device)
Structure: Three separate RGB diodes are mounted on the surface of the PCB.
Advantages: Widely used, cost-effective, good color performance.
Common Use: Indoor and outdoor LED displays, rental screens.
Downside: Vulnerable to damage from moisture or impact.
✅COB (Chip on Board)
Structure: Multiple LED chips are directly mounted on the board and encapsulated together.
Advantages: Better protection, anti-collision, moisture-resistant, seamless surface.
Common Use: High-end indoor displays, control rooms, harsh environments.
Downside: Slightly higher cost, limited pixel pitch range.
✅Micro LED
Structure: Ultra-small LEDs (micron scale) that function as individual pixels, directly embedded on the substrate.
Advantages: Highest brightness, contrast, and color accuracy; ultra-fine pixel pitch.
Common Use: Luxury applications like control centers, broadcasting, and future consumer TVs.
Downside: High cost, still an emerging technology.
Summary Table: SMD vs. COB vs. Micro LED
| Feature | SMD | COB | Micro LED |
|---|---|---|---|
| Pixel Pitch | P1.2 and above | P0.9–P1.5 | Below P0.5 |
| Protection Level | Low | High (impact & moisture) | Very High |
| Brightness | High | Moderate | Ultra High |
| Color Quality | Good | Very Good | Best-in-class |
| Price Range | $$ | $$$ | $$$$ |
| Applications | General use | Fine-pitch indoor use | High-end, premium applications |
Choosing between SMD, COB, and Micro LED depends on your display environment, budget, and visual requirements.
For cost-effective and flexible displays, SMD is still a reliable option.
-If you need durability and seamless indoor viewing, COB is a strong contender.
-For the ultimate visual experience, Micro LED is the future — though at a premium.
-Still unsure which LED type suits your needs? Contact BRIGHTEN DISPLAY — our team is happy to help you find the best solution.
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