Submitted on May 28, 2009
The newly added HDMI 100M Ethernet channel allows Internet-based HDMI devices and other HDMI devices to share Internet access without having to connect another Ethernet cable.
The newly added audio return channel (ARC, Audio return channel) allows the HDTV to independently transmit audio signals to the A/V power amplifier receiver and audio equipment for output through the HDMI cable.
Define common 3D format and resolution. Realize the standardization of the input and output parts of the home 3D system, and support up to two 1080p resolution video streams.
Supports up to 4K×2K (3840×2160p@24Hz/25Hz/30Hz or 4096×2160p@24Hz)
Expanded support for color space, the color space specifically designed for digital cameras, including sYCC601, Adobe RGB, AdobeYCC601, can display more accurate and realistic colors when connected to a digital camera.
Add Micro HDMI mini interface, the new Micro HDMI interface will be about 50% smaller than the 19-pin normal interface.
Support car connection system, a cable specification designed for the transmission of high-definition content in the car, which can avoid the influence of heat, vibration, noise and other common environments inside the car, and also provide a set of practical and feasible for car manufacturers to transmit high-definition content in the car solution. [2]
HDMI 1.4a
Submitted on March 4, 2010
Added Top-and-Bottom format
Two new sets of mandatory 3D picture transmission format standards applied in broadcasting systems have been added
Side-by-Side Horizontal (concurrency level)
Top-and-Bottom (up and down)
Define mandatory 3D standards for broadcasting, games, and movies
HDMI 1.4a standard requirements
The frame encapsulation level of the 3D display device must reach 720p@50, 1080p@24 or 720p@60, 1080p@24
Side-by-Side Horizontal needs to reach 1080i@50 or 1080i@60
top-and-bottom needs to reach 720p@50, 1080p@24 or 720p@60, 1080p@24
HDMI 1.4b
Submitted on October 11, 2011
Support 3D1080p120Hz





