Why is "5G" the east wind of 8K popularization?

The MWC 2018 conference has been successfully held in Barcelona. Unlike the previous mobile phone field, this year's Mobile World Congress was squandered by the major mobile media as “a gathering of garbage equipment” and “the gathering place of the cottage iphone X”. Although there are a lot of slots, it does not mean that there is no point. From the 5G tags that can be seen everywhere in the venue, the highlight of this year is the 5G concept, which can provide greater network throughput and is favored by technology companies in various industries. Let's take a look at the related content with the network communication Xiaobian.

8K popularity is worse than the shareholder of "5G"

Found on MWC2018, BOE (BOE) and Huawei showcased the world's largest 110-inch 8K ultra-high-definition display with 7680&TImes; 4320 high display resolution, using BOE's unique ADSDS super hard screen technology, picture details The combination of the advanced 5G technology that has arrived has brought the 8K ultra-high definition shocking visual experience to the scene.

8K, refers to the screen resolution of up to 7680&TImes; 4320, the display effect is 4 times that of 4K display, the total number of pixels is about 33 million, which is 16 times of the current mainstream HD (FHD) resolution, which can make people have 4.3 times HD visual experience. Many consumers will have doubts. In the case that the 4K experience is still not popular, what is the significance of the concept of hot 8K?

4K has always been bruised

Why is 8K a true next-generation visual technology, and 4K is only a "stepping stone" in the HD era? In fact, the reason is very simple, 4K clarity has always been a "standard" this flaw!

It has been five years since the birth of 4K. In 2017, 4K TV sales increased by 38%, accounting for one-third of the global TV market. However, 4K TV has always lacked rigorous standard support. In addition to the 3840&TImes; 2160 resolution, the remaining indicators follow the existing Full HD (1080p) standard, and the "authenticity dispute" has been in the industry for many years.

At first, the true and false 4K panel is arguing constantly. To solve the low brightness of the RGB tri-color 4K panel, many companies have added white pixels to the panel or 8.3 million, but the RGB sub-pixel is only 1/4 of the original, although in dynamic There is no obvious difference in the display under the screen, but there is still a slight gap between the fineness and color in the static picture. The controversy of "authenticity" gradually shifted to the level of configuration and technical parameters, whether it only used 4K panel or "4K panel + 4K image processing chip", whether it supports H.256 decoding, whether it supports HDMI2.0, etc. A very hard standard.

The maturity of technology and industry chain has also led more manufacturers to reach a consensus in the above differences. On the hardware level, mainstream brand products have agreed on the definition of 4K TV, but the topic of “authenticity” still plagues the industry. 4K film source. As 4K TVs enter more homes, more and more users are gradually discovering that no matter whether it is cable TV or network video on demand, there are very few real 4K sources that can be seen.

After all, a true 4K film, from recording, collection, production, transcoding equipment, to the user's final display equipment must meet the 4K standard, and the price of this production equipment is not civilian at all, the production cost is high. . In the final analysis, the "pseudo 4K" "can be popular", the root cause lies in the scarcity of 4K sources.

8K is the next generation of visual technology

Drawing on the experience of 4K development, 8K display technology has been certified by the International Telecommunications Union (ITU) and the Society of Motion Picture and Television Engineers (SMPTE) accredited Super Hi-Vision standard, a set of standard systems, including picture frame rate, Standard viewing distance, viewing angle mode, and audio standards. The standard resolution is 7680&TImes; 4320, the total number of pixels is up to 33 million, and the frame rate is increased to 120 fps.

At the same time, the 8K standard viewing distance and viewing angle mode are also clearly defined. More importantly, the 8K Ultra HD resolution corresponds to the 22.2 channel standard, and the 4K and 1080p resolution 5.1 channels are completely incomparable.

In addition to the ultra-high definition display, 8K will promote changes in the fields of work, education, family socialization, entertainment safety, health care, and property transaction procurement. 8K is not only used in the field of TV display, but also closely related to people's other lifestyles, and thus forms a complete ecosystem.

8K is not out of reach

Under such circumstances, there are still some consumers and industry insiders who are not optimistic about the popularization of 8K in the moment. The reason is very simple. At present, 8K content resources are very scarce, even if you buy 8K TV, you can't enjoy the imagination. Ultra HD viewing experience.

In fact, some vendors have started to act on the content side. In 2016, the Rio Olympics Olympic Games has already achieved the trial broadcast of 8K satellite signals. In the previous period, Li An’s "Billie Lynn’s midfield battle" was completely shot with 8K. The shocking effect has also been unanimously recognized by fans; and Japan has confirmed that 8K video signals will be broadcast live at the 2020 Tokyo Olympics.

In addition, in December 2017, Sharp released the 8K broadcaster developed in cooperation with the Japanese manufacturer ASTRODESIGN, which can complete the recording and editing of 8K content, and the price is also close to the people, greatly promoting the output of the upstream content, further eliminating consumers' 8K products. Doubt.

The 8K technology is mature, and the content end is followed up. There is still a problem in the transmission that needs to be solved, that is, the problem of propagation speed and bandwidth. From the results of JVC Super Hi-Vision camera video acquisition, the 7680×4320 resolution video with a length of about 1 minute requires 194GB of storage space. This amazing volume, both for Blu-ray Disc and network bandwidth, has Great pressure, not to mention the cable TV signal.

At present, the 4G signal, although the transmission efficiency is improved, but many users still can not meet the requirements, and the high-speed transmission characteristics of 5G make 8K video online play possible. In theory, the peak rate of 5G can reach 20Gbps, while the number of linkable devices per square kilometer exceeds 1 million, and the link delay is only 1 millisecond. This means that the previous 4K movie will be downloaded within 1 minute in the 5G era.

For the domestic, although the current 4G signal has been relatively fast, but facing a large number of users, still can not meet the requirements, so can only hope for 5G. And according to the high-speed transmission characteristics of 5G, it can also bring about 8K video online playback. The peak rate of 5G can reach 20Gbps, while the number of linkable devices per square kilometer exceeds 1 million, and the link delay is only 1 millisecond, which is a huge improvement with 4G's 20 milliseconds. This means that the previous 4K movie will be downloaded within 1 minute in the 5G era.

Summary: The 5G era is approaching, which can bring greater data throughput, the network downlink speed will reach new heights, and high-quality, high-resolution video can achieve second transmission. It also means that communication equipment needs to be replaced and upgraded. At present, the popularity of 5G technology needs to wait at least until 2020, and 8K TV can really enter the consumer's home. It should take at least 3 years. The popularity of the two technologies is not conceivable. And, it is destined to set off a revolutionary change in electronic equipment.

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