COB LED Screen packaging technology has great advantages compared with SMD packaging technology.
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Its pros: smaller space of LED beads, better protection performance, long service life, and low dead light rate.
Its cons: difficulty in manufacturing finished products, maintenance inconvenience.
The so-called COB package, that is, the chip-on-board package, is actually a kind of LED chip pasted on the PCB substrate, is a new packaging technology different from SMD packaging technology, this packaging technology simplifies the entire packaging process of the chip, but also eliminates the original support and reflow process so that the entire LED is more stable, the point spacing is also smaller, directly improve the resolution of the LED display.
The most important feature of COB packaging technology is that it can reduce the spacing of LED beads. The original package of SMD in the LED display of the small point spacing can only be P1.2, that is, 1.2mm, difficult to achieve, and can not guarantee a certain dead light rate. However, because the encapsulated COB changes the layout and composition of the LED beads, it can essentially reduce the reverse dot pitch, and the resolution is close to the level of the LCD splicing screen.
For LED display with small space, during transportation and installation, as long as it is subjected to external force, some light beads will fall off, resulting in dead lights of individual pixels, not emitting light or only showing monochrome, which has some reason with the encapsulation technology. As the encapsulation COB is the LED chip directly encapsulated in the recess of the PCB lamp, and then fixed with epoxy resin, so the whole lamp ball is a raised sphere, both smooth and hard, with better protection.
COB package product is to encapsulate the lamp on the PCB board, through the PCB board copper foil to quickly transfer the heat of the wick, and the thickness of the PCB board copper foil on the process has strict requirements, coupled with the gold plating process, almost will not cause serious light attenuation. Thus greatly extending the service life of the LED display.
When the LED display is encapsulated in COB, it has to ensure the lamp with no problem before refilling. It cannot replace a single bulb as an SMD package, so it is very demanding throughout the packaging process.
If it’s a traditional LED light package SMD, you can disassemble the unit board after a single bulb soldering repair. When it comes to the COB product, the maintenance will affect the surrounding lamps, maintenance is very difficult, and although its protection performance is better, there still will be a certain dead light rate, in this case, can only replace the unit board.
With the introduction of any packaging technology, there are reasons for its existence and space, of course, there will be imperfections. In the future, the development and promotion of technology will also reduce this impact. In short, COB LED screen technology is a future development trend, especially since its LED packaging space is small, for many users, the resolution is a very important technology.
COB LED strip lights are a reliable and creative way to illuminate any space. Light strips are commonly used in various environments such as landscape lighting, playground lighting, carnival lighting, commercial lighting, home lighting, architectural lighting, cabinet lighting, homes, businesses and commercial properties. COB LED strips, also known as pointless LED strips, are particularly interesting because of their continuous line of lighting without hot spots. Let’s take a closer look at COB LED light strips, shall we? What are the advantages and disadvantages?Are COB LED strips good?
In this guide:
1.Are COB LED strips good?
2.What are the advantages of COB LED strips?
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3.What are the disadvantages of COB LED strips?
4.Reliable COB LED Strips Suppliers
COB light strip is an LED light strip manufactured using COB (Chip on Board) technology. COB technology integrates multiple LED chips on a substrate and realizes the connection between lamp beads through connecting lines, thereby achieving high brightness, High uniformity and high energy efficiency. This makes COB light strips have higher brightness and better color reproduction, and are more energy-saving than traditional LED light strips.
COB LED Strip Lights
SMD LED Strip Lights
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The brightness of COB light strips is very high. One meter of COB light strips can reach a brightness of more than 2,000 lumens, which is enough to meet the lighting needs of many large commercial and industrial places. At the same time, COB light strips also have a wider range of use scenarios and can be used in home lighting, commercial lighting, indoor and outdoor lighting and other occasions.
COB light strips also have excellent color reproduction, allowing people to see more realistic and natural colors. The color temperature range of COB light strips is also very wide. You can choose the color temperature suitable for different occasions, such as warm white (K-K), natural white (K-K) and cool white (K-K).
In addition, COB light strips also have better uniformity and anti-interference. Due to its high chip density, the light is more uniform and there will be no "dots forming lines". During use, COB light strips are also more resistant to interference and more sensitive to changes in voltage, current and other factors.
The disadvantage of COB light strips is that the price is relatively high, and due to the high chip density, their product prices are usually more expensive than traditional LED light strips.
Larger heat: Due to the large number of COB lamp bead chips, the heat generated is also relatively large. If there is no heat dissipation design, it will affect the life of the product.
Susceptible to voltage fluctuations: Each LED chip in a COB lamp requires stable current and voltage. If the power supply is unstable, it will have an adverse impact on brightness and lifespan.
Taken together, COB light strips have some advantages and disadvantages compared to traditional LED light strips. Although the price is relatively high, COB light strips are still irreplaceable in high-demand lighting needs such as commercial and industrial places. lighting solutions.