HDMI - Frequently Asked Questions What is the full form of HDMI in Electronic Device, Computer Hardware? Expand full name of HDMI . What does HDMI stand for? Is it acronym or abbreviation? HDMI (High-Definition Multimedia Interface) is a proprietary specification designed to ensure compatibility between video and audio devices over a single digital interface. The specification is used for consumer electronics -- including high-definition and ultrahigh-definition TVs, DVD and Blu-ray players, game consoles, streaming devices, soundbars, laptops and PCs -- as well as for automotive and commercial devices. HDMI cables connect these devices and carry both uncompressed digital ... HDMI full form is High Definition Multimedia Interface and it transmits audio and video data across devices. For a deeper understanding of its features, types and more, read here. HDMI Full Form High-Definition Multimedia Interface. It is a technology that allows you to connect devices like TVs, monitors, and projectors to other devices like computers, gaming consoles, Blu-ray players, or streaming devices.