A 4K monitor has a resolution of 3840 * 2160, and signals with a width less than 3840 cannot be called 4K, and signals with a height less than 2160 cannot be called 4K. The same 4K signal also has different differences, such as whether the frame rate is 30Hz or 60Hz, whether the color space is YUV or RGB, etc. These will bring more significant differences in image quality for display devices with very good display effects. Taking the common HDMI connection method as an example, the HDMI 2.0 parameter [sensitive word] value is 60Hz, and the parameter at 60 frames is twice as high as HDMI 1.4 and 30 frames. The picture quality and details will be much better, and the higher the frame rate, the smoother the picture. Moreover, when moving the perspective quickly, the residual image at 60 frames is much smaller than that at 30 frames, and the higher the value, the closer the picture is to the real world observed by the human eye.

       But now, 8k has already come out. In 2020, the Key Laboratory of Ultra High Definition Video and Audio Production and Broadcasting at the Central Station, in collaboration with Hisense, successfully developed 4K ultra high definition monitors. The technical quality is on par with international advanced products, filling the gap in the technology of professional 4K ultra high definition monitors in China. Currently, the Central Station and some local stations are using 4K monitors produced by Hisense for the production of ultra high definition programs. While bringing exciting advanced technology to the production of ultra high definition programs, it greatly promotes the development of China's ultra high definition content industry.

       At the beginning of the year, the Winter Olympics were broadcasted on 8K ultra high definition television. The Beijing Winter Olympics is not only a global sports event, but also a technological event, an integrated display of China's technological achievements. Domestic video [sensitive words] have all participated in the [sensitive words] Technology Winter Olympics