In the field of LED display, COB (CHIP on Board) technology and traditional SMD (Surface Mountain Devices) technology are two main packaging methods. There are significant differences in display effects, stability, cost, and application scenarios. This article will introduce the characteristics and differences of these two technologies in detail to help you better choose the appropriate LED display.
- Packaging technology
COB technology:
COB technology integrates LED chips directly on the PCB board, eliminating a separate LED lamp structure. This packaging method makes the display more thinner, easy to install and transport, while the appearance is more beautiful. COB LED display: explore novel display technology.
COB packaging simplifies the package process of the LED chip, and directly integrates the LED chip on the PCB board. It is fixed on it. The process is simpler. There is no need to return welding. The LED chip is more stable.
SMD technology:
SMD technology is a mature technology that welded LED lamp beads on the circuit board. This technology is very mature, the production process is stable, and the manufacturing cost is relatively low. The packaging process of SMD technology is relatively tedious, and it requires a certain operation time. The minimum point distance can only be 1.2mm. Even if the one is more than one, it can still be smaller, but it still cannot get rid of the problem of dropping the lights. Take you to know the six differences between the SMD LED display and the COB LED display.
- Display effect
COB technology:
The COB display can easily achieve smaller pitch, making the display screen clearer, delicate, and softer in color. The lighting uniformity of the COB display and high color reduction, especially in high -resolution imaging, has a large advantage. It is suitable for small spacing P0.9, P0.6, and even P0.4 display. The COB display uses the "surface" light source to light up, effectively inhibit the Moore pattern, reduce the refraction of light, and the color is better. What is a thin spacing LED display?
SMD technology:
The SMD display is suitable for P1.2 distance. With the development of technology, by optimizing the packaging process and using smaller chips, SMD color and brightness uniformity can also meet most application scenarios. Take you to understand P1.2 indoor LED display: price, technology and application.
The point light source structure of the SMD display may appear grainy when watching at close range, and the uniformity of color and brightness is relatively poor.
- Stability and protection
COB technology:
The COB display has better packaging protection and stronger collision ability. The device is closed on the PCB board. In the process of transportation, installation and disassembly, there will be no adverse phenomena such as lamps and bad lights. From factory to products, it can ensure that the product is not damaged. The shell mask of the COB display is strong, the surface hardness reaches 4h, and the anti -bump ability has significantly enhanced. The COB display has lower thermal resistance and high heat dissipation efficiency, which helps maintain stable operation for a long time and extend the service life of the display.
SMD technology:
The lamp beads of the SMD display are welded on the PCB board. It is easy to drop the lights. During maintenance, the technician needs to be welded on the spot or replaced the unit board directly, resulting in a high after -sales rate. The protection level of the SMD display is low, and does not have functions such as moisture -proof, waterproof, dustproof, shockproof, and collision -proof.
- Cost
COB technology:
COB encapsulates a separate LED lamp bead structure, which can significantly reduce costs when large -scale production. The COB display has a high manufacturing cost, mainly due to high packaging technical requirements, high R & D costs, high corporate transformation costs, and few manufacturers. What is a COB LED display and what is COB LED technology?
SMD technology:
SMD technology is very mature and the production cost is relatively low. The manufacturing cost of the SMD display is low, but with the decrease of point spacing, the cost will gradually increase.
- Application scenario
COB technology:
The COB display is suitable for occasions with high display effects, such as studio, high -end conference rooms, meteorological lecture halls, business display, etc. These occasions require high -definition, high contrast, and high -color reduction display. COB display has good protection performance, especially suitable for application scenarios with high environmental adaptability, such as outdoor advertising, security monitoring, etc.
SMD technology:
The SMD display is suitable for occasions that are sensitive to cost and have relatively low display effects, such as ordinary commercial advertisements and stage backgrounds. The SMD display is flexible, the size and shape can be customized, and it can be stitched into a special shape such as curved shape to meet the needs of different sizes and shapes.
Summarize
COB LED display and traditional SMD LED display have advantages and disadvantages. The COB display has significant advantages in display effects, stability and protection, and is particularly suitable for occasions with high resolution, high -definition and high protection requirements. The SMD display is better in terms of cost and flexibility, suitable for occasions with relatively low cost and relatively low display effect on display effects. According to your specific needs, choosing the appropriate LED display technology will help achieve the best display effect and economic benefits.
Thank you for watching. I hope we can solve your problems. Sostron is a professional LED display manufacturer. We provide all kinds of displays, display leasing and display solutions around the world. If you want to know: Show the key role of the drive chip in the LED display. Please click read.
Follow me! Take you to know more about led display knowledge.
Contact us on WhatsApp：https://api.whatsapp.com/send?phone=+8613510652873&text=Hello