Four in one Mini LED! Does small space LED display a big change?

In mid June, the IFC exhibition in the United States, including the co - construction optoelectronics, the Otto electronics and other domestic LED display giant brands have launched the next generation of "small spacing LED" to show new products. These four - in - one mini-LED technology products are known as "the best of two" with traditional table paste and new COB technology. Under the new technology, what kind of changes will usher in the small space LED display?

More integrated packaging: four in one mini-LED

This small distance LED new product has two "innovative technical features": first, Mini LED, which is the application of LED crystals with a particle size of 100 microns or below. The smaller crystal particles are almost "1/10" of the traditional 300 micron size LED crystals. Smaller particles' Mini LED means lower upstream costs and smaller "downstream terminal pixel spacing indicators", but it also means "more difficult mid stream encapsulation technology".

The second technical features of the new product, "four in one", refer to the package specifications in the middle reaches. On the one hand, the traditional pasted beads are basically a "pixel", including three or four LED crystals of red and green; on the other hand, traditional COB products, such as SONY or Samsung, are all "big CELL" packages, and a few hundreds and thousands of pixels in one package.

The "four in one" package structure can be regarded as a compromise between the traditional table paste and COB products: four basic pixel structures in a package structure. The advantages of this package are: 1. overcoming COB encapsulation, too much technical difficulty for LED crystals in a single CELL structure; 2. for the downstream terminal manufacturing enterprises, the geometric size of the basic package units will not be "very small" because of the "small pixel spacing", and thus leads to the "table paste" welding difficulty enhancement; 3. 1 A fairly good base package structure helps to repair the "bad lights" of small spaced LED displays and even meet the needs of "Field Manual" repair (0.X's surface paste products and COB products do not have this feature).

So, as a whole, the "four in one" packaging structure is the focus of the new show: Mini LED mainly provides the necessity of adopting the "four in one" structure - a 100 micron LED crystal with minimal size of a single pixel packaging structure, exceeding the limit of the application of the surface technology. At the same time, the more integrated four pixel integrated package also produces unique application advantages, such as maintainability, the economy of the surface paste products and the good sense of vision of COB products.

Why four in one mini-LED is "more economical"

In the small distance LED market, the high-end products are not scarce. For example, SONY CLED products use standard COB encapsulation and Micro-LED crystal particles (one order of magnitude smaller than mini-LED crystal particles). However, this kind of product is often "high cost", and can hardly enter the small distance LED mass market of 2-5 million yuan per flat meter.

COB technology under the Micro-LED "high and small", the economy has blocked the door of the market. This point all LED shows that the enterprise understands. Therefore, in the new generation technology, how to achieve "low cost" has become the most concerned content of all industry manufacturers. Among them, the main technical ideas include: 1. does not use Micro-LED particles, such as the most COB packaged LED displays on the market; 2. does not use COB technology, using surface paste technology, which is the reason that the traditional LED display is cheaper.

For the four in one mini-LED technology, it can be said to have the features of the above two low cost technologies: MINI-LED particles, realizing the smaller LED crystal particles, saving the upstream cost and meeting the needs of the more fine display, avoiding the "limit of what size" of the Micro-LED technology and avoiding the manufacture of the crystal from the upstream. A series of "technical traps" that are encapsulated in the middle reaches of the whole machine.

At the same time, "four in one" packaging structure, so that the surface technology can be "obvious behind". Today, the 1 spaced surface patch technology can produce a LED display with a minimum 0.6 millimeter spacing, which greatly inherits the most mature technology, equipment and manufacturing experience of the LED display industry, and realizes the "low cost" of the terminal processing link. In addition, the "four in one" packaging structure also uses the design of the shared cathode and border connection. This also helps to optimize the terminal manufacturing process, less welding points, and improve the cost of the product.

So, four in one mini-LED is a "innovation" that inherits the economy of the last generation as much as possible. This will be one of the core pivot points for the success of the four in mini-LED products.

Four in one mini-LED how to do more "good looking"

As a new generation of new products, if you just think of low cost, of course, it won't be successful. Four in one mini-LED market success, still must rely on better visual "performance".

First, four in one mini-LED is a "LED" technique for "smaller crystal particles". This means that the product supports a more sophisticated display screen. Small distance LED market, the long-standing "bottleneck of the main product spacing" will be completely broken. In the future, it is possible to realize the 0.X - based display product layout and even enter the home market.

Second, small spacing LED shows the market, and the main reason for the popularity of COB technology is that this technology can effectively overcome the pixel granulation problem of "LED" and improve the firmness of the whole screen. Four in one mini-LED, although each basic package unit has only four pixels, still belongs to a more integrated package, obviously with many features of the COB display. At the same time, the MINI-LED crystal particles make the area of the LED crystal on the display area, and down 9 from the traditional same space target products. There is more space to provide better "sealing" and "optical design" to further enhance the visual experience and reliability of the product. It can be said that the four in one mini-LED and the COB small spacing LED are the technology to overcome the LED display of "pixel granulation" and to provide higher stability.

Third, fourth in one mini-LED technology uses "upside down" technology at the level of crystal packaging. There is no welding line in the reverse process. There are no problems such as light, flicker and light failure caused by LED welding or bad contact. At the same time, the inversion technology can provide the effective luminescence area of LED crystal to the maximum extent, provide the effective heat dissipation area of LED crystal to the maximum extent, and further enhance the optical properties and reliability of the product. The use of flip technology is considered as the "key direction" of the next generation LED display product crystal packaging.

The technical advantages of fourth, fourth in one mini-LED and above are not limited to the 0.X products. The products of this new technology can also be applied to larger distances, such as P1.5, or even P2.0 products. This is a technology that meets all of today's mainstream small space LED display products and the future smaller spacing of LED display products.

Fifth, the significant disadvantage of mini-LED technology is mainly "lower brightness", but it can still provide up to 800-1200 lumens, fully enough for indoor display, even more comfortable and healthier than those with high brightness: for a long time, indoor LED display research is heavy. The point is to reduce the brightness and achieve a better gray scale display performance under low brightness, which is obvious in the MINI-LED advantage.

Sixth, the application of mini-LED technology is in line with the development trend of LED semiconductor industry. The electrooptic efficiency of LED semiconductor industry is increasing, and the precision of crystal processing is increasing. This allows LED products in many applications to use smaller crystals and less material consumption to achieve the desired luminance effect. On the basis of this basic technical trend, small spaced LED shows that even a smaller size of LED crystal particles will be gradually adopted even if the products are not developed to smaller distances.

Therefore, the four in one mini-LED product is a "new product" which is in line with the future trend, the trend of the product, and is fully promoted in the display experience and is in line with the next generation standard. The combination of experience promotion and cost control is bound to be beneficial to the rapid market popularization of four in one mini-LED. However, this is not the full advantage of four in one mini-LED!

Four in one mini-LED embodies the cooperation of industrial chain and wins the support of downstream manufacturers

For COB small space LED, the biggest feature of this product is "the high integration of the middle reaches of the package" - the packaging enterprise, which has encapsulated thousands, even more LED particles into an integrated body. This integration has shown the features of the product. Therefore, the actual work of the downstream enterprises to do the work "assembly" is stronger, the core technology ratio, compared with the table technology significantly reduced.

However, four in one mini-LED is still essentially a "lamp" of four pixels and 12 LED particles, and the downstream manufacturers are inheriting the core assets and technical advantages of the paste technology. Even, the middle reaches of the packaging enterprise, "a large number of MINI-led integration" of the difficulty is "around the past." This makes the four in one mini-LED have the following: 1. the middle reaches of the enterprises are more easily supplied; the industrial chain autonomy and the core technical status of the 2. downstream enterprises are maintained.

Four in one mini-LED, under the premise of highly integrated and smaller crystal LED particles, the downstream manufacturers almost do not sacrifice industrial interests, do not need to transfer technical dominance, and maximize the value of a large number of technical assets attached to the LED display industry, and the maximum protection of the downstream terminal factory. The merchant's ability to "split" the cake. This makes this technology more popular with downstream vendors.

However, four in one mini-LED also has its "disadvantage": that is, as with COB technology, in the encapsulation phase, the final product 's "pixel spacing has been determined". This makes the middle reaches of the packaging enterprises have to provide "more specs of four in one lamp". The latter requires that the upstream and downstream cooperation of the industrial chain be closer - from the component level to the "product" level. This may further promote the emergence of a "group" characterized by the "middle reaches of the lower" alliance in the LED market.

On the whole, compared with the COB technology, four in one mini-LED makes full use of the existing industrial technology, resources and assets, leaving more "value space" to the downstream manufacturers, and has achieved a significant improvement and improvement in the display effect and experience. As one of the technical innovation directions of the LED display industry, it can be said to be "compromise", or "a great deal". It is because of the compromise that the four in one mini-LED has the advantage of reducing the technical difficulty and controlling the cost. This makes it easier for four in one mini-LED to become a "change forerunner" in the industry. In 2018, four in one mini-LED is expected to become a group of black horses in the LED display market.

Source: the age of projection

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