Uncover The Industry's First 20in1 Lamp Bead

In recent years, as a chip to form differentiated competition among manufacturers, small spacing and ultra-small spacing (Mini / micro LED) have gradually become the mainstream of the display industry, and the trend of indoor display screen and outdoor display screen spacing miniaturization is becoming more and more obvious. In this context, IMD and cob packaging solutions came into being.

According to the ledinside data of the photoelectric Research Office of trendforce Jibang consulting, the proportion of products with small spacing and ultra-small spacing will further increase in 2020, with a total proportion of more than 50%. Among the products with small spacing, from the perspective of output value, p1.2-p1.6 has the highest proportion of output value, more than 40%, followed by p1.7-p2.0 products.

In contrast, the market penetration of ultra-small spacing products below P1.0 is low, and continuous breakthroughs are still needed in technology and cost before they have the opportunity to fully open the market. It is worth noting that products based on IMD scheme are expected to be the pioneer.

P0.4 20in1 comes out, and Nationstar optoelectronics leads the mini LED market

As a leader in the field of IMD packaging technology, Nationstar optoelectronics has developed a full range of mini led direct display products covering p0.9-p0.4, of which P0.4 20in1 is the mini LED display product with the highest packaging density in the world, which is at the industry-leading level in technology and cost control.

It is reported that the development difficulties of P0.4 20in1 scheme mainly reflect PCB circuit accuracy, packaging process yield and display consistency.

On the one hand, with the improvement of product integration, the line design requirements and product process control requirements, the control difficulty of yield, the accuracy of materials and packaging equipment are also improved.

On the other hand, P0.4 has entered the consumer application scene, and the viewing distance is close, which puts forward higher requirements for display consistency. Therefore, it is very difficult to realize the full test sorting of 20in1 devices and ensure consistency.

In view of these difficulties, Nationstar RGB team has overcome them. After several rounds of process research, the design scheme has been continuously optimized and the process yield has been improved. At present, the existing difficulties have been basically solved. At the same time, Nationstar optoelectronic joint equipment supplier has developed multi-pixel synchronous test and sorting equipment, which can realize more than 240 test items to ensure the consistency of display effect.

Cost control is also excellent. It is understood that P0.4 20in1 Mini led adopts the idea of semiconductor integrated packaging and realizes the functional connection of mini led according to the display principle of LED. On the one hand, it improves the shipment rate of products. In addition, due to the integration of some devices, it greatly reduces the cost of display module PCB. The scheme adopts micro LED chip, and the pixel assembly efficiency can achieve 1.2kk/h, which can greatly reduce the manufacturing cost of display module.

In contrast, if the products below p0.5 adopt the traditional cob scheme, the PCB of the module needs a high-order HDI board, and the line width is required to be less than 40um. Based on this, the PCB yield of traditional cob is basically below 30%, and the primary yield of packaging is less than 10%, and the cost is very high.

Nationstar optoelectronics said that the 20in1 scheme is a thinking extension of the IMD packaging design idea. With the company's years of accumulation of IMD technology and the research and evaluation of circuit design and process accuracy, the scheme can be fully implemented. At present, Guoxing optoelectronics is trying to improve the packaging yield in order to further reduce the device cost.

It can be seen that the advent of P0.4 20in1 not only highlights the technical strength of Nationstar optoelectronics, but also promotes the development of mini LED display industry. At the technical level, it helps to promote the technical upgrading of upstream chip, carrier technology and sealing and testing equipment; At the level of cost control, it is conducive to accelerate the application penetration of mini led into the civil consumer market.

Nationstar optoelectronics believes that the low penetration rate of mini led direct display products below P1.0 is due to the mature supply chain with small spacing above P1.2, large application scale and obvious cost advantage, while direct display products below p0.9 have a certain technical threshold, the supply chain is still in continuous improvement, the scale is relatively small, and the terminal has not found accurate application scenarios, The comprehensive cost is relatively high. At the same time, the screen factory is wavering in the choice of mainstream Mini LED technology, so it has not yet formed a joint force.

However, Nationstar optoelectronics has proved by strength that IMD Mini led direct display products have obvious competitive advantages in rapid mass production, reducing costs and improving product experience. At present, imd-m09 and imd-m07 have achieved mass production and been recognized by high-end customers. Among them, the large-scale promotion of M09 Mini led standard version will help the terminal display cost approach P1.2.

In general, IMD scheme has greater advantages in technical difficulty and cost, and has the advantages of coordinated development of industrial chain. At present, it has become the mainstream technical route of mini LED market. With the coordinated cost reduction of the industrial chain and the popularization of market applications, IMD Mini led direct display products are expected to increase rapidly in the next 2-3 years.

The development route is clear, and Nationstar optoelectronics Mini LED is ready to go

According to the analysis of ledinside of the photoelectric Research Office of trendforce Jibang consulting, the demand of emerging markets such as conference room space, cinema market, virtual production and security command and control center is rising, which will continue to inject vitality into the LED display market and further accelerate the landing application of mini led direct display products.

Based on the LED packaging industry, Nationstar optoelectronics has been deeply engaged in the field of LED display for many years. It has long had an insight into the market opportunities and responded quickly to new needs. With rich packaging technology reserves and forward-looking layout, Nationstar optoelectronics has successfully launched the market popularity of IMD Mini led direct display products.

For example, Nationstar optoelectronics took the lead in promoting the landing application of mini LED display in the transportation market. At the end of 2020, Nationstar optoelectronics and Alto electronics jointly created the largest and highest resolution 16K Mini LED display in the domestic subway station, which was perfectly settled in line 4 of Ningbo subway station.

Based on the optimistic about the mini led direct display market, Nationstar optoelectronics is actively expanding its production capacity. In Q3 this year, Nationstar optoelectronics has reserved a monthly production capacity of 2000kk in the field of mini led direct display, and will continue to expand production in the future, so as to be fully prepared to cope with the increasing terminal demand.

In the medium and long term, Nationstar optoelectronics will focus on large-size 4K / 8K displays of 100 inches and above, simultaneously expand the display market in small and medium-sized fields such as conference scenes, and continue to promote the full flowering of IMD Mini led direct display products in different application markets. In the future, Guoxing optoelectronics will also continue to lead the LED packaging industry and help Mini led direct display products accelerate the opening of the market.