What does 4K 120Hz mean

First, let's see what 4K 120Hz stands for. 4K, which naturally refers to the TV resolution, simply means that the pixel value of each line in the horizontal direction reaches or approaches 4096. According to the picture proportion, it may be 4096 of full aperture 4K × 3112. 3656 of academy 4K × 2664 and 3840 of uhdtv standard × 2160 and so on, all belong to the scope of 4K. Considering a series of problems such as film source and transmission bandwidth, 4K is a suitable choice.120Hz naturally refers to the refresh rate, which means that the screen can be refreshed 120 times per second. 

In fact, before TV, many game monitors have reached this value, even 144hz; Now, the refresh rate of flagship mobile phones has also reached 120Hz. With a high refresh rate of 120Hz, the screen can show a smoother and smoother effect when facing some dynamic pictures. In the past, TV was mainly used to watch film and television content, and the 60Hz refresh rate was more than enough. However, as TV becomes more and more important equipment to carry game pictures, 120Hz with better effect becomes more important.