Development Opportunities Of LED Display Application Industry in The Era Of 5G+8K UHD Video

01. "5G", "8K" and ultra-high definition video industry

"5G" "8K", a few simple numbers and letters, but behind the huge power.

What is "5G" and "8K"? "LED screen shows the world" reporter found the answer according to relevant data.

8K resolution is an experimental digital video standard, short for "7680 * 4320" resolution, promoted by NHK, the British Broadcasting Corporation (BBC) and RAI.

This resolution is equivalent to 16 1080P (1920*1080) resolutions, which is theoretically four times the size of 4K and is a higher resolution Ultra HD technology.

As the advanced form of Ultra HD video, 8K brings all-round improvement in picture and sound quality.

In terms of picture quality, according to the ITU for 4K/ 8K technology developed BT. 2020 recommendations, 8K video (UHDTV2) each frame of the picture resolution is four times that of 4K video (UHDTV1), color depth up to 12bit, each color can have 4096 shades, Consistent with Dolby Vision's color depth standard, it is better than the current mainstream HDR10, thus presenting a clearer picture closer to nature. In terms of sound quality, 8K video supports the 22.2CH multi-channel sound system created by Japan's NHK. It is equipped with three-layer speakers of 9 channels in the upper layer, 10 channels in the middle layer, and 3 channels in the lower layer. At the same time, it is also equipped with dual-channel low-frequency sound speakers.

At the same time, the audio and picture quality is improved in all aspects. Since the file size of 8K video is much higher than that of 4K video, the data flow required per second is larger, so faster and more stable mobile communication technology is needed, and 5G is the best network matching 8K video at present.

So what exactly does 5G mean?

5G, the 5th generation mobile communication technology, is the abbreviation of "the 5th generation mobile networks" or "the 5th generation wireless systems", is the latest generation of cellular mobile communication technology.

As an extension of 4G, 5G's performance targets are high data rates, reduced latency, energy savings, reduced costs, increased system capacity and large-scale device connectivity. The main advantages of 5G networks are that data transmission rates are much higher than previous cellular networks, up to 10Gbit/s, which is 100 times faster than previous 4G networks, and they have faster response times (less than 1 millisecond).

In fact, 5G has not been around for the last two years. As early as 2015, Japan has been working on 5G and trying to integrate it into the country's overall information planning. In December 2018, South Korea became the first country in the world to announce the commercialization of 5G, and the United States joined the group a few hours later. In 2019, China has also made great strides on the road of 5G commercialization, marking the advent of the global 5G era.

It is said that "4G changes life and 5G changes the era". Now, the emergence of the new generation CP of "5G+8K" has opened a new prelude to the development of display for us -- the era of ultra-high definition video industry.

According to Miao Wei, former minister of industry and information technology, ultra-high-definition video is a new round of major technological innovation following digitization and high-definition, which is of great significance for promoting industrial transformation and upgrading and meeting people's needs for a better life.

Ultra-high definition video industry is composed of video shooting and production, communication, information technology, display application and many other industries intertwined, which has a huge power and value effect on economic development.

From the perspective of the end-to-end process of localization of 5G+8K UHD video industry chain, in order to fully realize the implementation of UHD video applications, it is necessary to solve the problems of content collection, production and transmission as well as terminal playback in all aspects.

In the content collection end, video shooting needs to reach the 8K level. At present, Canon, Nikon, Sony and other major manufacturers have launched 8K camera products, and these products have been widely used in relevant fields. So the pressure is on to deliver and broadcast.

As mentioned above, in order to solve the problem of 8K video signal transmission smoothly and efficiently, the support of 5G technology is indispensable.

Theoretically, a 20-minute 8K source video file needs up to 4TB of storage space.

According to the earlier calculation of Japan's NHK Television, the average bit rate of video transmission reaches 120Mbps during 8K live TV broadcast, while the peak rate of 5G can reach more than 10Gbps, and the network quality greatly exceeds the need for 8K signal transmission.

With the popularization of 5G in the next few years, UHD video applications will be launched faster and more widely. As for the terminal rendering problem, it will be left to the display industry manufacturers to solve. Whether laser, LED, LCD or other display products, they all have the potential to present 8K video at present. Some manufacturers have launched 8K related products. Plus the ultra-low latency of 5G, it can guarantee the efficient transmission of video signals and even realize the collaborative work between multiple video devices. It further strengthens the multi-dimensional, high immersion and high fluency picture expressiveness of 8K video, and perfectly presents the combined effect of "one plus one is greater than two" of 5G+8K.