In the current mainstream color TV market, 4K TV is definitely one of the mainstream products. So what is 4K TV ? How to distinguish what is true 4K TV? Especially now many unscrupulous buyers say that their TV is 4K environment for sales, I believe many consumers are eager to understand what is real 4K TV! Today, I will bring you the relevant knowledge of 4K TV.
4K technology is a higher resolution ultra high definition display specification. The general 4K TV resolution is 3840*2160, the aspect ratio is 16:9, and the total pixel is about 8.3 million. The total resolution is HD resolution. (2K) 4 times of 1920*1080, and because of this, it is called 4K. At this resolution, the TV picture quality is greatly improved , and consumers can clearly see every close-up and detail in the TV picture, just like being there. If the TV size is large enough, the picture is really shocking.
However, some products indicate that they are 4K products, but if you look at the parameter table, if it does not reach 3840*2160, then it is not 4K pixels, but the resolution alone can not really distinguish between true and false 4K.
There is also a 4K TV that does not support the H.265 video format, which is basically a fake. Because 4K TV just came out, the built-in chip does not have 4K video playback capability, or the decoding format is not complete, so it has been criticized. Later, 4K technology became more and more mature, and the video format of H.265 appeared, which can support 4K video playback. So, when buying a 4K TV, you can see if the TV supports the H.265 video format.
There is also a more intuitive way to see whether the TV specification identifies "RGB" or "RGBW". RGB is called the three primary colors, and the three primary colors of red (R), green (G), and blue (B) display all the colors of the TV picture through different proportions, while RGBW means to add white to the three primary colors (W ). But the actual pixels of RGBW can only reach 3/4 of 4K pixels, about 2880*2160, the total number of pixels is about 6.22 million, which is 2 million less than the real 4K. All, generally labeled "RGBW" is a pseudo 4K.
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