In HD video content has been quite popular today, HD interface HDMI is becoming more and more necessary for TV, display and other video equipment, also HDMI will be divided into 2.0 and 1.4 standards, the following is to introduce what is the difference between HDMI 2.0 and 1.4.
Hdmi2.0 is different from 1.4
The official organization of HDMI is HDMI Forum Inc. All HDMI specifications and standards ultimately come from this organization. Of course, the specification of HDMI is born, but also depends on the innovation of various manufacturers and technologies. Finally, HDMI2.0 was first proposed in September 2013.
1, on the hardware, 2.0 and 1.4 are used between the same interface and connector, so it can ensure that 2.0 can be perfectly compatible downward, the two types of data lines can be directly used;
2, 2.0 in the performance of greatly enhanced support for 4K ultra HD transmission, and in a number of video, audio technology has been improved, the earlier HDMI1.4, 10.2Gbps bandwidth, the highest can only support to YUV420 color format 4K@60Hz, although the resolution is high, But the image quality will be lost because the image color compression is too high;
3, although HDMI 1.4 has been able to support 4K resolution video transmission, but limited by the bandwidth limit, the highest can only reach 3840*2160 resolution and 30FPS frame rate, and HDMI 2.0 will expand the bandwidth to 18Gbps, Can support 3840×2160 resolution and 50FPS, 60FPS frame rate, in addition to the resolution and frame rate upgrades, in the audio side can also support up to 32 channels and up to 1536KHz sampling rate;
4, There are also improvements to simultaneously transmit dual video streams to multiple users on the same screen; Simultaneous transmission of multiple audio streams to up to four users; Support 21:9 super widescreen display; Dynamic synchronization of video and audio streams; Cec extensions for better control of consumer electronic devices from a single point of control.
Post time: Aug-31-2022
