What is the HDMI interface? Where is the main application?

HDMI, the full name of English is High Definition Multimedia Interface, the Chinese name is the abbreviation of high-definition multimedia interface. HDMI delivers high-quality uncompressed HD video and multi-channel audio data at up to 5Gbps. At the same time, it is not necessary to perform digital/analog or analog/digital conversion before signal transmission, which can ensure the highest quality video signal transmission.

https://www.stc-cable.com/products/audio-video-cables/hdmi-cables-and-adapters/

Popularly speaking, HDMI is not mysterious. As a new type of interface, it can support the simultaneous transmission of sound and image. That is, the sound image is transmitted by an HDMI cable (unlike the traditional one), and the signal is uncompressed. It can reach up to 1080p or 1960x1080 resolution, which is the real high definition and people can say that HD can reach 720p or 1280×720 pixels.
https://www.stc-cable.com/products/audio-video-cables/hdmi-cables-and-adapters/
The application of HDMI interface is very extensive now: HD signal source: Blu-ray player HD player PS3 alone computer high-end monitoring equipment; 2, display equipment: LCD TV computer monitor (relatively rare) monitoring display equipment. LCD TV with HDMI interface is currently the most common: generally at least one, more than 3-6 HDMI interfaces.

As the name implies, the HDMI cable is a line with an HDMI interface. The OD diameter is divided into: No. 30, No. 28, No. 24, the smaller the OD diameter, the better the quality. According to the subsidiary: Does it have a magnetic ring? Nylon mesh injection head metal head, etc., with magnetic ring nylon mesh metal head stability will be better. HDMI cable supports 1080p signal transmission, but the transmission distance of HDMI cable is limited. At present, it can achieve 1080 meters up to 20 meters in China. If the HDMI cable is longer, the signal will be attenuated to 1080i or no graphics. This is also related to the quality of the wire you buy in the market, because the line specifications of different manufacturers will be different! Of course, if you want to extend the HDMI signal transmission distance, you can use the HDMI signal amplifier (up to 30 meters), the cable extender (with signal) The conversion device transmits the theoretical distance of 60 meters through the six types of network lines instead of the HDMI line to at least 45 meters.

 

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Post time: Aug-27-2018
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