Since the birth of smart TVs, all kinds of interfaces have begun to become more and more abundant, VGA interfaces, USB interfaces, network cable interfaces, HDMI interfaces, etc., which were not common on CRT TVs, have appeared on smart TVs, and they all have their own uses, which can be connected to various external electronic devices. Today I will tell you about the usefulness of the HDMI interface.
The use of HDMI cable interface:
1. The HDMI specification interface can digitally transmit uncompressed high-resolution video and multi-channel audio data in the form of maintaining high quality.
2. HDMI high-definition multimedia interface is a fully digital image and sound transmission interface, which can transmit uncompressed audio signals and video signals.
3. HDMI can be used for set-top boxes, DVD players, projectors, computers, digital speakers and other equipment.
4. HDMI cable can transmit audio and video signals at the same time, because the audio and video signals use the same cable, which greatly simplifies the installation of the system. Most TVs will now be equipped with 2-3 HDMI cable connectors, and there may be differences in versions.
At present, there are three mainstream HDMI interfaces on the market, HDMI 1.4, 2.0 and 2.1, it is worth mentioning that HDMI 1.4 has been "serving" in the high-definition audio and video industry for many years and has made considerable contributions to the development of the 3D and 4K industries. HDMI 2.0 is currently the most popular, as for the HDMI 2.1 interface mainly adds support for 10K resolution, dynamic HDR, variable refresh rate technology, etc., which also means that HDMI 2.1 transmits pictures with higher resolution and higher frame rate.
