Understanding HDMI: What is HDCP 2.2/ARC/10Bit/MHL?


TV users will certainly find the TV's HDMI port marked HDCP2.2, ARC, 10Bit, MHL, but what exactly do these markings mean? What is the role of different types of HDMI ports? This article will answer these questions for you and help you better understand HDMI.

There are 4 types of HDMI ports, HDMI HDCP2.2, HDMI ARC, HDMI 10Bit, HDMI MHL, of which HDMI ARC is our usual sense of HDMI2.0/HDMI2.1 interface.

1. HDMI HDCP2.2: protects high-value digital movies, TV shows and audio content from illegal theft and copying.

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2. HDMI ARC: fully known as Audio Return Channel, that is, the sound return function, for the output of digital audio from the TV, can be connected to the same support ARC function of the amplifier, the sound of the TV to the amplifier.

3. HDMI 10Bit: which stands for color depth. The general PC screen is 6Bit, high-end is 8Bit, especially professional is 10Bit, can be understood as 2 of the 10 times the color depth.10Bit specifically refers to a video coding technology, that can provide a very high video quality, and can be in the color gradient and change in the performance of extraordinary detail, but the requirement for playing 10Bit is very high.

4. HDMI MHL technology transmits up to 4K Ultra HD uncompressed video with eight channels of digital audio using only five cables, while charging mobile devices.

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