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HDMI was released in 2002 as an early-generation version. There have been several versions since its inception, but the mainstream is only 1.4, 2.0, and 2.1. HDMI supports the high version compatible with the lower version, but the difference in performance and user experience is still quite large.
The HDMI1.4 version only supports 4K video playback at 30 frames per second, video fluency is not enough, long-term viewing is easy to cause visual fatigue; HDMI2.0 version supports 4K video playback of 60 frames per second, the video effect is ideal, no card Dayton, the human eye is also a lot of gentle, is currently the standard 4K industry interface; HDMI2.1 version supports 120 frames per second 4K video playback, also supports 60 frames per second 8K video playback, fast, no Caton, It is also very gentle to the human eye, and the necessary data transmission interface for the 8K and 10K eras.
It is clear that the HDIMI1.4 version has poor performance. HDMI2.0 is still a good choice. In fact, there are HDMI2.0 and HDMI2.0a/HDMI2.0b versions. Although the HDMI 2.0b version is updated, HDMI2.0a is Higher levels, HDMI 2.0b support 10.2G bandwidth, and HDMI 2.0a support 18G bandwidth, all support 4K@60Hz, but if it is HDMI 2.0b, in terms of color depth, color bit, it is almost worse.
In the long run, the HDMI 2.1 interface is more worthwhile because it is more forward-looking. It will be needed in future 8K and 10K TVs to achieve transmission and enjoy a better viewing experience.
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Indispensable HDMI interface for flat panel TV interface
With the continuous appearance of various high-definition devices, it is particularly important for the TV interface. One of the most important interfaces among flat-panel TVs is the non-HDMI interface. Friends who know a little about flat-panel TVs know that the HDMI interface is used to connect external high-definition devices. Compared with earlier VGA interfaces and color-difference interfaces, the HDMI interface has the advantage of simultaneously transmitting audio and video signals without signal transmission. Before the number / modulus or analog / digital conversion. Both the TV box and the smart TV have this interface configuration.