The HDMI 1.4 data cable will add a data channel to support high-speed two-way communication. Interconnected devices that support this function can send and receive data via 100M Ethernet, which can satisfy any IP-based application. The HDMI Ethernet channel will allow Internet-based HDMI devices to share Internet access with other HDMI devices.

This channel reduces the number of cables required for audio to be transmitted upwards and processed and played. In the case of high-definition televisions that directly receive audio and video content, this new channel allows high-definition televisions to transmit audio directly to the AV amplifier receiver through the HDMI cable without the need for another cable.

HDMI is a digital video / audio interface technology that meets the standards of the high-definition era, and can be used in digital devices with HDMI interfaces such as set-top boxes, DVD players, personal computers, televisions, cameras, and mobile phones.

4. Expand support for color space

Although RGB is still a common color space in most video applications, other color models, especially in the field of digital photography, are becoming increasingly popular. HDMI specification version 1.4 adds support for three color spaces (gamuts), allowing manufacturers to present better and more accurate colors for users who enjoy digital photos on high-definition TVs.

The new specification will define a common 3D format and resolution for HDMI devices, realize the standardization of the input and output parts of the home 3D system, and support up to two 1080P resolution video streams.

The high-definition resolution supported by the HDMI device will reach 4K × 2K, four times that of the current 1080P, and it can transmit content at the same resolution as many digital home theaters. Specific format: 3840 × 2160 24Hz / 25Hz / 30Hz; 4096 × 2160 4K × 2K display makes high-end home theater systems already comparable to digital projectors used in many movie theaters.