Shulou(Shulou.com)11/24 Report--

There is only one problem with all the good things in the world: expensive!

Lao Ma first saw Samsung's The Wall with Micro LED technology on the 2018 CES, and over the past few years, it has been in various exhibitions to see 110in Micro LED products. This year, Samsung released and displayed a more "people-friendly" 89-inch Micro LED on AWE, with a price of "only" 749999 yuan. But from a distance is never as good as close play, when Lao Ma really touched and experienced this product a few days ago, although he had "read countless machines", he still got goose bumps. It can really be said, "the harp and the sound are beautiful, the mountains and rivers are elegant and the rhyme is deep. The butterfly dance between flowers is bright in color, and Qinghui under the moon is intoxicating." ah!

In the post-LCD era, display technology is in full bloom. OLED TV has occupied part of the high-end market, MINI LED as a backlight is also constantly improving the performance of high-end TV, Micro LED is generally regarded by the industry as the display technology of the times, it will take time to produce. But as the leader of global TV sales, Samsung once again demonstrated its extraordinary courage and technological innovation ability, showing the world's first household 110in Micro LED in 2020 and officially going on sale domestically in 2022, with a price as high as 1049999 yuan.

In 2023, the release of Samsung's 89-inch Micro LED, on the one hand, built a more perfect matrix system for Samsung Micro LED's product line, on the other hand, it was a product exploration of Micro LED innovative technology, looking for a broader market recognition. Born extraordinary Samsung 89-inch Micro LED, in terms of service life, interaction efficiency, response speed, reliability and other aspects have a more outstanding performance. Especially in the leap of picture quality and the expression of future elements with a strong sense of innovation. What is the technical breakthrough of such a product? Why can only three stars be mass-produced as quickly as possible? When will it be popular in the future? let's listen to the details of the old horse.

Micro LED, the most luxurious and meticulous expression of the picture.

First say what is LED, in order to better understand what is Micro LED. LED is a light-emitting diode (Light emitting diode), a kind of semiconductor light-emitting module that we learned in middle school. All kinds of LED can be seen in our life at any time. For example, the old Ma family has long been replaced by LED lighting. The LED lamp has a long life, low power consumption, can be very light and thin, and the color temperature can be adjusted at any time. The meeting screen that we usually see showing PPT is basically LED, but that kind of screen, whether it is LED light beads or spacing lattice is still relatively large, it becomes pockmarked if you look closely, and the resolution is not high due to physical conditions.

Mini LED and Micro LED are actually single LED,Mini LED with smaller luminous units and finer spacing, whose grain size is 50 to 200 microns, while those less than 50 microns can be called Micro LED. At present, we can see that there are a lot of Mini LED TVs on the market, which are not directly displayed by Mini LED, but are used as backlight for LCD TVs. The aim is to reduce the size of a single backlight source, so that a light source is responsible for only a few hundred or less pixels, so that the contrast can be improved indirectly through partition light control. At present, the mainstream Mini LED TVs on the market usually have thousands-tens of thousands of Mini LED lights in the backlight, and the screen is divided into hundreds of independent dimming areas.

However, even if the Mini LED is so fine, it is difficult to compare with the pixel-level light control of OLED, the more the number of lamp beads, the more the contrast can only be infinitely close to OLED. So there is a saying that Mini LED is only a transitional technology, the direction in recent years, but not the final direction. Mini LED is not small enough, at present, the ultimate direction of the display industry, which is about to cause display technology innovation is Micro LED technology.

If it is as small as Micro LED, and then backlight the liquid crystal, it is undoubtedly a disaster. In the size and resolution of a traditional TV, this size is large enough to exist as a single pixel, which is why countless big companies have made great efforts to develop MicroLED, because it can be as pure black as OLED in contrast.

Moreover, Micro LED almost solves the shortcomings of LCD and OLED. First of all, there is no need to be a foil to others, Micro LED itself is small enough to be a display panel, and there is no need to backlight LCD under the LCD board. This makes the Micro LED modular, can break down volume and weight, and is even thinner than the OLED screen.

When Micro LED is a separate pixel, it means that the switch of each pixel can be controlled separately, so the energy consumption can also be reduced. The above two points are the main reasons why LCD is defeated by OLED on the mobile side. With these advantages, Micro LED is qualified to challenge OLED on the mobile side.

Most importantly, Micro LED also solves the two biggest problems of OLED, brightness and lifetime. Because of its inorganic diode pedigree, Samsung Micro LED display brightness can easily reach 2000nits. In addition, the inorganic properties of Micro LED also make it have a longer service life.

To sum up, Micro LED technology has many advantages, such as high resolution, high brightness, high contrast, high color saturation, low power consumption, fast reaction speed, thin thickness, long life and so on. But the biggest problem is that with the current level of technology, it is too difficult to make a Micro LED display product that can be sold.

Put it on the shelf, why did Samsung do it in the first place?

Following the previous paragraph, it is very difficult to make a Micro LED display device at this stage. Because the whole industry is still in the early stage of development, unlike LCD, there is a mature division of labor between upstream and downstream, the workload of just creating a perfect Micro LED display panel is very terrible, and the technical bottlenecks include epitaxial, chip, transfer, full-color, power drive, backplane, detection and repair technology and so on.

A diagram of the manufacturing process of a Micro LED

Behind every two words above, there are many difficulties in optics, materials and technology. Take the most discussed mass transfer in the industry as an example, the giant transfer technology is mainly to transfer millions or even tens of millions of micron LED grains to the drive circuit substrate quickly and accurately, and form a good electrical connection and mechanical fixation with the drive circuit. The technical bottleneck comes from the different specifications of different application products, which need to use different huge transfer methods, and different huge transfer methods have different equipment precision, process yield, process capacity, equipment and process cost. After the transfer, how to quickly detect and maintain the Micro LED chip is the key to determine the process cost.

Sun Tailong, director of Micro LEDTeam of Samsung VD Division, attended and introduced: "Samsung has invested a lot of time and resources in developing difficult processes, including the technology of transferring more than 500000 LED on each module from Wafer to TFT, efficient and stable LED / substrate connection technology, and seamless technology, so that more consumers pursuing high-end quality of life can enjoy the ultimate experience brought by Samsung Micro LED."

It is reported that Samsung's 89-inch Micro LED crystal is grown on a sapphire substrate and uses laser mass transfer technology to transfer to a glass substrate engraved with LTPS TFT instead of the traditional PCB board, in order to reduce costs, improve the rate of good products, and take into account energy saving. The panel backlight chip is a 34 × 58 micron LED chip provided by Samsung holding PlayNitride. It is the best size LED chip used by Samsung so far.

After the construction of the Micro LED panel, Samsung will also check the lighting of each pixel for more than 600 hours to ensure that each pixel is perfect.

Despite the difficulties in the manufacturing process, the Micro LED is the simplest display panel with no backlight, no modules, and even no color filters and polarizers. Because each pixel is controlled independently, you can choose to make a multi-pixel display module and finally "piece them together" through the automatic assembly technology based on deep learning. The purpose of doing this is based on the manufacturing cost, and another advantage is that in case a pixel is damaged, it is very convenient to complete the replacement maintenance through the module replacement process. More intimately, Samsung has also developed a mobile App that can calibrate the replaced display uniformity.

Because Micro LED is indeed a display technology with no deficiency in theory, numerous display companies have invested heavily in Micro LED research, including Apple, LG, Samsung, as well as China's TCL, Huawei, Konka and so on. We have also seen various "displayed" prototypes at many exhibitions. But why can Samsung "dare to be the first in the world" to commercialize such a cutting-edge technology? After reading many technical articles, Lao Ma, who is more and more in awe, believes that there must be a huge investment and in-depth research behind this, so that Samsung's products can take the lead in completing the requirements of production and sale. Samsung ensures the uniformity and viewing angle of the picture by improving the surface structure of the chip, and secrecy operates these technologies, so even if the same LED components can be found, it is difficult to achieve the image quality presented by Samsung Micro LED products.

Faced with the question of when Micro LED will become popular, Samsung said: the progress of the industry is difficult to predict, but Samsung must be the industry leader.

Luxurious and extraordinary, create the top sensory experience

Please forgive Lao Ma for talking about technology. After all, this technology is still very shocking from the theoretical stage to the real products in front of us. But strong technology is only the foundation of a TV, in the 89-inch new Micro LED, we can still see Samsung's unique style and super strength in the whole machine.

First of all, when it comes to design, we can amaze our visual senses at first glance, and the ultimate aesthetics with a high degree of internal and external unity is the consistent adherence of Samsung TV. Because of its simple structure and no need to seal the edge of the drive unit, the 89-inch Micro LED can achieve 99.9% of the screen ratio, weakening the sense of boundary and emphasizing the integration of minimalist design and luxury space atmosphere. Lao Ma highly recommends watching the gray suspense drama directed by Hitchcock. The metal frame is easier to integrate into the picture, and we can get the strongest sense of immersion when our attention enters the film.

Many series of Samsung TVs have always been the most suitable large screen for wall hanging in the minds of consumers, and the same is true of this Micro LED. 24.9mm 's ultra-thin body, sapphire crystal material screen, unique art mode, turn off the screen luster flow, turn on the machine with artistic flavor to fill the living room, a sense of quality from the heart.

In terms of audio and picture quality, Samsung 89-inch Micro LED carries 24 million LED chips thinner than hair, ensuring ultra-precision image quality and accurate color expression. RGB LED light source does not need color filter, higher color purity, coupled with 20bit color processing technology, even in the case of low gray, color expression is still rich and true. Samsung Micro LED's "Aspergillus Youshuo, Huigu Chunqiu" is not only the presentation of details, but also the ultimate restoration of color.

At the same time, Samsung Micro LED's picture quality is also protected by a powerful MICRO AI processor, and each beam of spontaneous light behind the screen is based on the smart tone of AI. "colorful Black" is no longer a stem, but really realizes the micro-expression of the same color with different shades, together with multi-layer neural network to bring AI image enhancement, each frame has a different shock visual enjoyment.

In terms of sound quality, Samsung Micro LED is equipped with the latest sound and picture tracking OTS Pro technology, and Lao Ma has described it many times, driving the sound according to the details of the picture, reconstructing the sound effect according to the content of the picture, and improving the audio-visual experience qualitatively. In addition, this new product also adds sky channel loudspeakers to comprehensively enhance the Dolby panoramic sound experience, and with Samsung symphony technology, whether it is empty cicada or mechanical rise, the surround sound field covers the same sense of presence as real cinemas.

As a cross-era product that integrates Samsung's strongest sound quality and picture quality, intelligent upgrade is a people-centered and intimate change. Samsung MICRO LED is equipped with a new Tizen system. In order to be more in line with Chinese usage habits and compatible with Android applications, Samsung has 300 + application support in all scenarios in the App Store. Not only that, Samsung Smart Home Interconnection can also easily connect rich third-party smart objects to create a convenient home ecology with intelligent technology, which can be described as the perfect integration of practicality, convenience and wisdom into this "future" TV.

Lao Ma commented:

Micro LED may be the final answer to flat display, although its price is still out of reach for the average consumer. But there are already extreme suitors who "unpack generously". Because the pursuit of sensory experience is endless, how many unreachable things have now flown into the homes of ordinary people, but someone has to "pick the stars from the sky" first, and Samsung is undoubtedly the "first person".

Today, Samsung Micro LED continues to produce offline, consumers can really feel the extreme shock power of Micro LED, and the entire industrial chain will enter a period of rapid development under the leadership of Samsung, because any wise enterprise already knows that it is unstoppable. The strong must be strong for a reason, ranking first in global sales for 17 years in a row, not only to make Samsung TV products recognized by consumers, but also to promote the development of the global TV industry as a leader. Therefore, Lao Ma has reason to believe that Samsung will still be the leader of the TV industry in the next decade, and Micro LED is the brightest diamond in the crown.

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