So whether the technology, the production capacity, or the industry chain setting is far from mature, can the 8K TV really be "successful"?
[The difference between 8K and 4K]
The Sharp's first 8K TV is 70 inches, with a resolution of 7680 x 4320 and 33.18 million pixels.
It is 4 times the 4K resolution, and has amazing picture detail performance. Even dust, tiny particles, etc. can be vividly displayed, reproducing subtle images that cannot be captured by the naked eye.
Sharpness As the root of television, Sharp's launch of 8K TV seems to be nothing wrong.
However, after significantly increasing the screen size and resolution to the original 4 times, it is still more difficult to maintain the yield, and the difficulty of superimposing the existing technology one by one on the product is also amplified.
According to Sharp's official introduction, the best viewing distance for 70-inch 8K TVs is 68cm, but Xiao Bian really does not think that 68cm distance to see 70-inch TV will have a good experience.
[Scarcity of film and television content]8K has a huge problem in film sources.
At present, many 4K TV hardware devices meet the standards, but due to the limitations of recording equipment, the content can not keep up, 4k video resources lack of content, many 4K TVs can not enjoy the 4K picture quality to bring the viewing experience.
Many brands of smart TV products only provide a few 4K resolution video resources for users to order (most of them need to buy members). Most other online movies and TV shows can only reach 1080P or even 720P resolution. And most of the CCTV and local TV broadcasts we watch are only capable of providing 720p resolution, and are far from 4K, not to mention 8K.
The high cost of content production is also one of the limiting factors.
To achieve 8K content production, it is necessary to replace a series of equipment such as recording, acquisition, production, transcoding, and then the production and transcoding need to face four times the amount of information 4K, but also to carry out more accurate editing, rendering, adjustment Color synthesis, lyrics, transcoding and a series of operations, and to ensure the output of the content without delay, the cost is huge.
[Network broadband key]For 4K video, according to the international 4K standard, a color depth of 10 bits is required, and the user access bandwidth is required to be at least 50 MB. Compared with 4K video, 8K video requires 4 times more information. It is difficult for current users' network bandwidth to meet 8K video online playback.
In addition, if the user wants to watch a local 8K movie, it is very difficult at this stage. Taking the storage space as an example, a 20-minute 8K movie requires 4TB = 4096 GB of storage space, and a 2-hour movie requires 24 TB of storage space.
[Current 8K technology is more valuable in the professional field]At the Olympic Games in Brazil, for the first time, 8K live events (8K video frames will be up to 120 frames, while 4K videos only support 60 frames at the moment), 8K screens can capture more detailed images, such as clearly seeing the athletes' arms in swimming games. Splashes of water when splashing and the airy look of a large mouth.
Another example is the use of 8K technology video capture, can be arbitrarily edited into 4K or 1080P resolution video, can greatly enhance the shooting efficiency.
The application of 8K technology in professional fields will far exceed the value of being a TV or other consumer electronics product. Now it has been put into practical use in various fields. Even if 8K TV is the only way for future development, it is now taking this step. Still too early.
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