Comparison of Mini COB display and traditional SMD display, analysis of advantages and disadvantages

Reading volume: 326

Release time :2023-07-20

Estimated reading time: 1 minute

Subscription:50

Introduction

Since the IS exhibition last year, major LED display companies have not exhibited LED lamps below SMD1010, which shows that due to the limitation of SMD packaging technology, it is difficult to achieve a smaller dot pitch. However, the needs of users are endless. In order to seek a smaller dot pitch, major companies have focused on LED displays in COB packages.

Simply popularize the COB display:

Why is there a COB display? It has been 4 years since the birth of COB display screens in China, but the advantages are prominent in these two years. Since the IS exhibition last year, major LED display companies have not exhibited LED lamps below SMD1010, which shows that due to the limitation of SMD packaging technology, it is difficult to achieve a smaller dot pitch. However, the needs of users are endless. In order to seek a smaller dot pitch, major companies have focused on LED displays in COB packages. What is a COB display? The COB display is a LED display in a COB package. The COB package is to directly package the light on the PCB board, completely sealing the device from exposure; compared with the LED display (generally referring to the SMD package), the product is more closed and the production process Less, better product reliability.

Advantages of COB display:

1. The COB display can easily achieve a dot pitch of less than 1.0mm. The smaller the dot pitch, the clearer the display screen and the softer and more delicate colors; 2. Stronger protection ability: the device is not exposed, and the product will not lose light due to shaking or excessive force during transportation, installation, and disassembly. It is anti-collision and crash-resistant, and its load-bearing capacity is 5 times that of SMD-packaged LEDs with small spacing; 3. The cabinet is ultra-thin, lighter in weight, and easier to install, disassemble and transport;

4. The ability to withstand the outdoor environment is better: water mist tide, cold and wet freezing, thunderstorm electricity, oxidation corrosion, and scorching heat will not affect the normal display; 5. The heat dissipation ability is better, the heat is dissipated directly through the PCB board, the thermal resistance is small, the heat does not accumulate, and the service life of the product is more guaranteed; 6. The light perception is better, the surface light source emits light, effectively suppresses moiré, and does not hurt the eyes when viewed at close range.

Disadvantages of COB display:

1. Due to the difference in packaging methods, LED display companies are not easy to transform, the cost of transformation is high, and there are few COB display manufacturers; 2.For the same model, the price of COB display screen will be 10-20% higher than the price of SMD package led display screen;

3.3. Consistency of ink color: If the appearance of the screen is not beautiful enough, it will definitely affect the acceptance of the product, so some people think that the ink color consistency of the COB display screen is not enough, so the overall COB display does not look beautiful; In fact, LED displays below 1.0mm dot pitch, regardless of the packaging method, have this problem, but this problem has been well controlled.

Conclusion

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Table of contents

The Uses of Led Screens for Events and Businesses
For engagement
To display information
Visibility
Illumination
Factors events and businesses need to consider before renting LEDs?
Budget:
Aspect ratio
Here are the common aspect ratios:
Pixel pitch
Purpose
Where is the Venue?
The advantages of our rental LED screen
Conclusion

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