COB technology may be a shortcut for us to catch up with Sony's small pitch!

In recent years, with the LED display technology and the continuous subdivision of the application market system, the LED display has exhibited various application types such as small pitch, profiled screen, transparent screen, in-line screen, and light grid screen. Diversified development trend, the entire LED display market shows great vitality and vitality, especially the small-pitch LED display in 2016 is very popular, which greatly promotes the rising of the LED display industry. Some industry people said that 2016 is a small-pitch LED. It shows that the first year of the outbreak is expected to maintain a super high growth rate in the next 2-3 years. By 2018, the market size will be close to 10 billion yuan. The development trend of small-pitch LED has been confirmed by the industry, and it is expected that the compound growth rate in the next three years is expected to exceed 60%. In terms of market and technology, the current domestic small-pitch LED display has two main forms: surface-mount package small pitch and COB package small pitch. Due to the mature surface-mounting technology and market development, the mainstream small-pitch LED display is usually used. Screen, generally refers to the surface of the LED display, in fact, the small spacing of the surface is indeed the current leading LED display industry. In contrast, LED display industry market is hot, COB package display products are very deserted, in terms of market competition distribution, the current COB display is simply a single book, but because COB's own packaging process is compared to the surface mount process Many advantages, in recent years, COB package LED display has also caused great concern in the industry. In particular, the CLEDIS display product based on Flipchip technology exhibited at Sony's CES show in 2016 has achieved remarkable results and has attracted much attention! Many people believe that this product is an important application of Micro LED display. Changchun Xida Electronics COB products provoke a thousand layers of waves, Micro LED is considered to be LED display devices, in the technology and display have a relatively subversive innovation of the traditional LED display! Its excellent display effect, even as an OLED display The competitors of technology have caused the layout of international electronics giants such as Apple and Sony. At one time, some people have linked COB small pitch to Micro LED display, which is obviously an acknowledgement of the current COB package display. In fact, due to the adoption of different In the packaging process of surface-mounted LED display, COB package display products have inherent advantages of non-particle display compared with surface-mount package display products. For traditional LED display products, the conversion from point source to surface source is realized. The uniformity, viewing angle, and human eyes are all better. I believe that the three-in-one COB TV products exhibited by Xida Electronics at this year's ISLE show have impressed many people. All along, the use of more convenient, lighter and more beautiful appearance, better display effect, etc. is the pursuit of the LED display industry, the LED display manufacturers come In other words, it is to develop a broader LED display application market with more excellent LED display quality. In terms of COB package and SMD package, if the current market size is proportioned, the COB display will have obvious advantages in terms of product stability, luminous efficiency, durability, power consumption, etc. due to its unique COB packaging advantages. The performance is fast in heat dissipation, less dead light, long display life; the convex spherical surface of the lamp point has strong impact resistance and chemical corrosion resistance, and has strong environmental adaptability; the person in charge of the important domestic COB company Wei Qiaoshun tells We collected data from Weiqiaoshun's application products and found that COB display products that have been in operation for more than 6 years did not find any repairs! Even our own research and development did not expect such durability, and the relevant technicians showed that the comparison test showed that When using 480*480mm cabinet and 1000nit brightness, the energy consumption of COB-P2.5 and SMD-P2.5 is compared. The COB consumes 80.57W SMD and consumes 165.7W. It can be concluded that under the premise of emitting the same brightness. COB heat dissipation is smaller and more energy efficient. Wei Qiaoshun COB products Clearly, LED display based on COB packaging technology, there are many advantages compared with surface-mount LED display in terms of display effect, high-definition display development potential, and environmental adaptability. This is the current LED display. The market is still an important factor in the overwhelming wave of surface-mount LED display technology! Of course, it seems to be somewhat negative for COB! In terms of the LED display of the current COB process, due to technical cancellation of the reflow Soldering is the core surface-mounting process, which greatly increases the difficulty of the packaging process, making the stability control and reliability testing of the COB package in the CELL stage more complicated. In addition, the COB package starts later than the surface-mount package technology, and previously The COB package is mainly used in the field of lighting. Although the advantages are obvious afterwards, the process technology and material technology in the small-pitch LED screen display field are not as good as the surface-mounting technology, which leads to COB packaging in terms of overall cost in extremely small pitch products. It is also inferior to traditional surface-mounting technology. The high cost of COB package display greatly hinders the development of COB display enterprises, and also affects the market share of COB package displays. The balance of the industry market balance is one-sided, COB shows that the current situation of the product is slightly embarrassing!

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