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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 maximum value of HDMI2.0 parameters is 60Hz, and the parameters at 60 frames are twice as high as HDMI1.4 and 30 frames. The picture quality and details are 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 State Key Laboratory of TV and Audio Production, Broadcasting and Presentation at the main station and Hisense successfully developed 4K UHD monitors, whose technical quality is comparable to that of international advanced products, filling in the technology of our country's 4K UHD professional monitors at one stroke. At present, 4K UHD programs produced by Hisense are being used for the production of 4K UHD programs at the main station and some local stations, which has greatly promoted the development of China's UHD content industry while bringing gratifying advanced technology to the production of UHD programs.

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 giants have all participated in the National Science and Technology Winter Olympics R&D program, which will showcase stunning Chinese technology for the Beijing Winter Olympics. The 8K ultra large screen display allows viewers to see clearer picture quality, wider viewing angles, and see textures and details far beyond 4K, thus obtaining an immersive and realistic feeling. In recent years, Hisense Video has leveraged its independent research and development advantages in 8K transmission, decoding, display, and other areas, continuously building 8K professional image display solutions, and has established the capability to provide 8K full link solutions. With the release of China's first fully self-developed 8K AI image quality chip by domestic video giants, it will once again accumulate energy for industrial development and help the ultra high definition video industry run at the "Chinese speed".