Can you see the hair on an ant's thigh without the aid of a magnifying glass or microscope? "Definitely not. But I want to tell you that with the help of 8K ultra-high-definition technology, you can see clearly." Liu Buchen, the former chief consultant of Kuafu Enterprise Management Consulting Agency and a senior observer in the home appliance industry, told reporters that 8K ultra-high-definition technology will bring more benefits to users. Clear visual experience. That's not to say 8K is a magnifying glass or microscope. Rather, two TVs of the same size, one using traditional 2K regular HD technology and one using 8K Ultra HD technology, can present viewers with more clear details. Recently, Japan's NHK TV station is expected to launch the world's first 8K channel by the end of this year. 4K has not yet been fully rolled out, and 8K has already arrived. Do ordinary users want to catch up with this trend and buy an 8K TV? The picture quality is more detailed, the definition is 4 times that of 4K Ultra High Definition TV (UHDTV) is a collective term for 4K Ultra HD TV and 8K Ultra HD TV. 8K Ultra HD has a resolution of 7680×4320, what does that mean? Screen resolution refers to the number of pixels that a monitor can display. Since the dots, lines and surfaces on the TV screen are all composed of pixels, the more pixels the monitor can display, the finer the picture and the more information that can be displayed in the screen area. If you think of the image on the screen as a Go board, the resolution is the number of intersections of all the lines of latitude and longitude. The resolution of our well-known home HDTV is 1920×1080, that is, there are 1920 pixels on each latitude and 1080 pixels on each longitude. "The resolution of 8K is equivalent to 16 times that of ordinary high-definition TV, and the definition will also be 16 times." Su Jia, an associate professor at the School of Information Engineering of Capital Normal University, said in an interview with a reporter from Science and Technology Daily. Compared with HDTV, UHD TV not only doubles the number of pixels, but also greatly improves other performances, such as enlarged color gamut range, enhanced color reproduction ability, enlarged dynamic range of brightness, enhanced ability to reproduce high-contrast scenes, etc. . The resolution of 4K is 4096×2160. "4K ultra-high-definition vision is the same as normal human eyesight. What the human eye can see clearly can be displayed in 4K." Liu Buchen said, and the definition of 8K is 4 times that of 4K. Su Jia worked in the research and development of 4K video encoding chips at the Nippon Telegraph and Telephone Corporation (NTT) Research Institute. She has experienced the subversive visual experience brought by 8K TV. "It has more subtle details of light and shadow, and has a stronger sense of realism and immersion. ". Lack of hardware and software support, reduced to a "bright label" The 8K picture is so clear, can the human eye perceive the difference between it and 4K and 2K? Su Jia said it depends on the size of the TV and the distance between the human eye and the screen. "If you use a 37-inch TV, no matter whether it is 8K, 4K or 2K, the human eye will not be able to perceive the difference." Su Jia said that the size of an 8K TV should preferably be above 65 inches, so that the difference in resolution can be felt. Unfortunately, using a normal home 65-inch TV can make users feel oppressed, comparable to sitting in the front row of a movie theater and watching a movie. In order to ensure the visual experience, the user should be 6 to 7 meters away from the 65-inch TV, but at present, the living room of ordinary families can only give a space of 3 to 4 meters. In other words, 8K ultra-high-definition display technology needs to be combined with application scenarios, such as in large conference rooms, large exhibition halls, or in some interactive scenarios that require more people to participate. So is it necessary for ordinary consumers to buy 8K TVs? Su Jia said that if ordinary families have such needs to buy it, it does not matter. If the space is limited, the screen can be made into a curved screen. "But the current objective conditions are that hardware equipment and software are not enough to support 8K TVs, and both encoding and decoding have high requirements for network bandwidth. Therefore, 8K is only a bright label at present." Su Jia explained. Liu Buchen also told reporters that there are currently "pseudo 8K TVs" on the market - only the screen is 8K resolution but the control circuit and other hardware cannot match 8K. In addition, Liu Buchen also reminded consumers that some businesses also confuse the concepts of pixel volume and resolution. "If the amount of pixels is at or close to the 8K standard, but the resolution is not up to the 8K standard, the final picture quality will be far from the true 8K," he said. It is still in the concept stage, and the price is too high to become the bottleneck of promotion "If the TV is 8K ultra-high-definition, but the content is still 4K, it will not reflect the ultra-high-definition effect." Su Jia said that it is not necessary to buy an 8K TV to see 8K content. Liu Buchen also said that if there is a lack of 8K signal resources, even if you buy an 8K TV, you can only watch it as an ordinary TV. For the average consumer, waiting to buy may be the most realistic choice. At present, in order to stimulate consumers to buy 8K TVs, manufacturers will attach some 8K video content, but this part of the content is very limited and does not mean much to consumers. "In addition, it is a long process to achieve full chain coverage from cameras that collect 8K signals to equipment that produces and edits 8K content. At least in the next 2 to 3 years, it is impossible for China to launch 8K TV channels. In fact, there are very few 4K channels now. , and most of them need to pay extra fees." Liu Buchen said. It is reported that the 8K TV launched by Sharp has a maximum size of 80 inches and is expected to sell for 2 million yen (about 123,646 yuan), 70 inches for 1 million yen (about 61,823 yuan), and a 60-inch TV. The price is 750,000 yen (about 37,094 yuan). "At present, 8K ultra-high-definition is still in the concept introduction period. It is difficult for consumers to buy 8K TVs in the true sense. Even if there are purchasing channels, ordinary consumers cannot afford them." It's Sharp, and their products are good quality, but they are too expensive, more than 5 times the price of a 4K TV of the same size. For example, a standard 55-inch 8K TV is priced at more than 30,000 yuan; while a 4K TV of the same specification may cost less than 2,400 yuan. In Liu Buchen's view, high prices are the biggest bottleneck for popularizing 8K TVs. The 2020 Tokyo Olympics are approaching, and some Japanese appliance manufacturers have taken this opportunity to vigorously develop TV equipment with high-definition imaging effects. However, due to the high production cost of 8K TVs, most manufacturers still focus on producing 4K TVs with lower prices. For consumers who are interested in buying 8K TVs, Liu Buchen suggested: "Look at big brands, especially international brands. Such companies have relatively strong technical strength in developing 8K, and there is generally no technical fraud. In addition, don't buy too cheap so-called 8K. TV, possibly pseudo 8K." At present, only Japan has conducted system testing of 8K ultra-high-definition TVs in the world, but it still lacks mature operating experience, and what 8K can do is still under debate. However, insiders said before that, whether digital TV or high-definition TV, at the beginning of their birth, people will have all kinds of questions about the technology. As the market develops, content will drive technological progress, and technology will also lead content creation. It may only be a matter of time before 8K goes from experimentation to widespread adoption. 48V15Ah Lithium Ion Battery,48V15Ah Lithium Battery Pack,Li-Ion 48V15Ah Lithium Battery Pack,Echargeable Lithium Battery Pack 48V Jiangsu Zhitai New Energy Technology Co.,Ltd , https://www.jszhitaienergy.com