HDMI Technology Specification

The High-Definition Multimedia Interface (HDMI) technology is a digital video and audio interface that has become the standard for connecting devices such as TVs, computers, and gaming consoles. The HDMI specification was developed by a consortium of companies including Sony, Samsung, and others.

“HDMI is a set of specifications for a digital interface for carrying high-definition video and audio signals between a source device, such as a DVD player, and a display device, such as a TV, monitor or projector...It is an open, royalty-free interface standard.”

The HDMI specification defines the requirements for the interface, including the physical connection, signal formats, and error correction. The specification also defines the types of devices that can use the interface, including sources (e.g. DVD players), sinks (e.g. TVs), and repeaters (e.g. HDMI splitters).

Key Features of HDMI Technology

High-definition video support (up to 1080p and beyond)
Multi-channel audio support (up to 8 channels)
Data transfer rates up to 10.2 Gbps
Repeater support for extending signal distance
Error correction to ensure reliable data transfer

The HDMI technology has undergone several revisions, with the most recent being HDMI 2.1, which supports even higher resolutions (up to 10K) and higher refresh rates (up to 120 Hz).

Resuming the Author:

HDMI technology has revolutionized the way we connect and interact with digital devices, offering a seamless and high-quality experience for consumers. Its evolution continues to push the boundaries of what is possible in terms of resolution, refresh rate, and data transfer speed.

HDMI Licensing Administrator, Inc. — 2025-11-24