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The resolution of 4K TV is more than four times higher than that of 1080P Full HD TV, so it is naturally more refined in terms of picture resolution. Many details in the original 1080P picture can be very good through higher 4K resolution. Show, improve the quality. At present, the British Broadcasting Corporation (BBC) and BSkyB, a well-known British satellite TV operator, are all planning 4K broadcast live TV programs. It is believed that without much time, the British people will be able to watch 4K TV programs at home.
Ultra HD's full name is Ultra High Definition, Chinese translation is ultra high definition, and in order to simplify the writing of Ultra HD, it is customary to write UHD, and in order to let some users who do not understand UHD** can quickly understand UHD * * Sense, so UHD is also called 4K, through the digital display of its characteristics, this will help everyone's memory, leaving a more profound impression. 
Facts have proved that the awareness of 4K is also increasing in recent years. However, there is one point to be aware of. In general, when talking about 4K movie shooting, the resolution is usually 4096x2160. For home and commercial 4K TVs, the resolution is 3840x2160. There is a 4K category between the two. . 
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4K definition Do you know what is the difference with Ultra HD?
The concept of screen resolution is the number of pixels arranged horizontally and vertically. For example, 4K ultra-high definition television, the resolution is 3840x2160, which is the horizontal 3840 pixels, vertical 2160 pixels. The result of the multiplication of the two can be 3840×2160=8294400, which means that the total number of pixels of 4K TV reaches nearly 8.3 million. The more pixels in the screen, the finer the picture will be. Similarly, we can also calculate the number of pixels of a 1080P full HDTV, 1920x1080=2073600 which is approximately 2.07 million.