At the 2015 International Conference on Accumulating Technology LED Display, Jin Haitao, Director of Yiguang Electronic Product R&D Management Division, proposed a new concept for the development of LED small pitch. LED small pitch will advance to the next stage and become an Internet. The carrier, the future of small spacing has unlimited possibilities.
In the past few years, what is the hottest topic in the LED display industry, LED small pitch is a well-deserved jewel. In recent years, with the joint efforts of industry players, LED small pitch has been rapidly developed and once became In the process of many companies, the technology of LED small pitch has been continuously improved, and the market has gradually matured. At present, large-scale enterprises in the inland and Taiwan regions are involved in the research and development and sales of small-pitch LED display devices. Yiguang Electronics is the first manufacturer to introduce small-pitch devices in the industry, which has laid the foundation for its small pitch in LEDs. The leading position.
As a pioneer and leader in the field of small-pitch packaging, Everlight Electronics launched 1010 lamp beads in 2010 and 0808 package in 2012. The 0505 product that has been mass-produced has become the world's smallest full-color SMD package. According to Jin Haitao, Director of the Research and Development Management Division of Yiguang Electronic Products, “Yiguang has never stopped in product development. Now it is pushing the size of small pitch to continue down. 0 4 0 4 is already in the research and development stage.â€
Everlight first developed the 10.01 product, which is currently very mature in technology, and is now widely used in the market. Jin Haitao said that Everlight has been promoting the miniaturization of small LED spacing, and will continue to follow this road. Yiguang has great advantages in product development, can flexibly adapt to the needs of the market, and has always been at the forefront of the market.
Cost reduction must also adhere to the principle
Although the foreground of the small-pitch display device is very good, at the same time, the presence of a large number of manufacturers has made the competition of the LED small-pitch packaging device market more fierce. In the fierce market competition environment, Jin Haitao said that the P2.5 screen is now in the market. It is already very common, and there is also a trend of price hikes in price. In fact, Everlight is very unwilling to make a good product once again on the road of no return to price war.
Small-pitch products are for applications. Generally, the requirements for precision in commercial applications are not very high. However, in some special applications, the requirements for precision and clarity are relatively high. In some professional applications, the spacing is also required. Smaller products are more popular. "What we can do now is to make the spacing of the dots smaller and lower the cost. Try to make the products with small spacings not much different from the cost of P2.5."
When talking about how to reduce costs, Jin Haitao said that reducing costs is a necessary part of the development of new things, and Yiguang has also made a lot of efforts in cost control.
The first is the control of the raw materials. In general, the control of raw materials is the first choice, but Yiguang has less research on the material itself. Ordinary companies will choose to make a fuss about raw materials, such as replacing gold wire with non-gold wire, gold plating for silver plating or copper plating. Yiguang will not choose this method, but will carry out management and control on the management level. For example, the shorter the original material delivery time, the better, and reduce the inventory. "Our central goal is to maintain absolute quality." Jin Haitao made it clear.
Followed by cost management. Jin Haitao proposed a nuance of Taiwanese enterprises and mainland enterprises, that is, in terms of inventory management. "In Taiwan, as long as the inventory reaches a certain time, you will encounter the problem of material stacking loss. We have a very strict inventory policy. When the raw materials are placed in the warehouse for more than 30 days, it is superimposed by 50%, that is, we think The original materials have lost 50% of the value, and most Taiwanese companies will implement such an inventory policy. Over 60 days, we believe that it has completely lost value. Mainland enterprises do not pay much attention to these aspects of control, and mainland enterprises have more Elasticity is flexible in terms of production management, but it will be slightly inferior in terms of efficiency. Flexibility means that the company has inventory, and can respond accordingly in a short period of time, and can be flexibly used. Taiwan enterprises do not have too much inventory. There is no way to achieve flexible use, but it is very efficient. There is a trade-off between flexibility and efficiency."
In addition, in the case of uncompromising quality, Everlight will not only use the most sophisticated machine equipment and production technology to greatly improve the yield, but also the economies of scale that Everlight currently has the largest LED packaging capacity on the market. Increase the management method of the shortest material turnover days to help customers reduce costs.
Small pitch, interlocking
Although the small spacing is currently a popular star product on the market, its actual shipments are not as much as expected by the manufacturers. In addition to the high price, there are still some problems in the LED small-pitch display itself. Get a thorough solution. Jin Haitao told reporters that the small spacing itself is getting smaller and smaller, and it will face some challenges in the process of its production, such as the production process under ultra-high temperature. The small pitch itself is small, and the distance between the material and the material is extremely short, and as long as there is a small error, many intermittent defects occur. For example, a short circuit between the wafer and the wafer is easy. Compared to previous large-size products, the possibility of adverse events is greater.
In addition, the small-pitch display products not only impose high requirements on manufacturers, but the user's technical level is also a big threshold. For example, now 0404 products, not all manufacturers can produce, even if the manufacturers can not produce mass production; even after the mass production, the customer can not be used very well, then the product will not achieve its final the value of. All links are interlocking and indispensable.
In addition, the details are the key to success, the accuracy of the PCB, the accuracy of the SMT, the parameters of the amount of solder paste used, and many of these small details, which may have been a little bit different in the past, have little to do with, and have little effect, but now With a little bit of error, there is a possibility of large deviations. "But as long as each manufacturer is willing to do this, you can find the parameters that suit you. Because the equipment used by each manufacturer is different, the error of each device will be different. Just do it with your heart. I can do it well."
Competition needs to be supported by brands
Speaking of the current domestic LED display packaging situation, the trend of localization of small-pitch devices is becoming more and more clear. The mainland LED packaging companies are striving to rise, and currently occupy a certain market share in the market. Then, will the rise of mainland enterprises have a certain impact on Taiwan enterprises, so how will Yiguang respond?
Jin Haitao said that in the field of LED display, domestic manufacturers have always been the dominant players. It is not the rise of today, but this dominant position has always existed. "There is no way we can stop the competition from happening. The only way is to find differentiation in the competition. There are many differences between Yiguang's products and similar products. The raw materials and parameters used are very large. The difference, these factors will make a very big difference. In one sentence, the stability of Yiguang products is very high."
Reducing costs is a constant game rule, but the cost is not all. The price reduction of LEDs has been continuous. However, in the process of price reduction, there must be technology support. If there is no technology, it must have the ability to cut prices. The technical strength is completely based on the technical content.
Competition has always existed in every industry, and it is more prominent in the LED industry. It must not only have an overall price/performance advantage, but more importantly, it needs the value of the brand to support it.
Small pitch future unlimited possibilities
Under the research of the industry, the dot spacing of LED small pitch has been going down. All aspects of technology have reached a relatively mature stage, and the application in the market is more and more extensive. When the point spacing is getting smaller and smaller, everyone will find that it is meaningless to go all the way down. Will there be market space, so what is the future development of small spacing? On the future development of small spacing, Jin Haitao Published his opinion.
"At present, everyone is used to calling it a small-pitch display of LEDs. If you always look at the angle of the display, this concept is not comprehensive. You can't simply look at it from the perspective of the display. It will be advanced. In the next stage, it will become a carrier of the Internet, and there will be unlimited possibilities for the future of small distances." Jin Haitao said.
In the case of televisions, TV sets of more than 120 inches can be produced, but their use in life is not so common. Even if it can be made, the price is not cheap, and the cutting yield is a very big problem. The small spacing does not have such a problem. First, it has no limitation on the size of the splicing size. Second, the price reduction of the LED is very fast. In the past five years, the LED display has formed several times the price difference, so after five years, this price will certainly be more close to the people.
A display has no size limitation, and now it is connected to the concept of the Internet's Dongfeng and IoT. In this way, the interaction between the person and the screen will be very high, the resolution is getting higher and higher, and between the person and the screen. The interaction will be more and more, and the interaction will be more unrestricted. The distance between people may become smaller because of this screen, becoming a new way of communication between people.
When small pitches are applied to large screens, it becomes a time-sensitive interaction that adds all of these technologies together. LED small spacing is not just a display, showing some information, video and so on.
"You shouldn't just meet the needs of the display. There should be more layers of possibilities. The reason we keep going down is that it doesn't just stop at the concept of a small-pitch display. If it's just a simple display of advertising, any specification. The display can do it."
"With the deepening of technology, the passage of time will spur a lot of different thought sparks. If it is only from the perspective of LED display, the small spacing of LEDs is just a screen bound by the frame. If it is in technology and cost If you break through another obstacle, there will be unlimited possibilities for the future of small distances," Jin Haitao said.
"If you look at the angle of the LED display, then it is meaningless to go down the small distance. The so-called starting point is different. The so-called meaning and meaninglessness will be different. Small-pitch display The argument is not so precise, the small-pitch display is just one of the applications for small pitches, but not all."
For the future development trend of small distance, Jin Haitao is very confident. "Although the future is not very clear, there are infinite possibilities. Don't set limits. If you limit the limit, there may be no small spacing now. Maybe it is only in the original. On the basis of self-sufficiency, what progress has it made? The future of small spacing is worth looking forward to!"
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