What is HDMI Version 1.4?: HDMI 1.4 increases the maximum resolution to 4K × 2K (3840×2160p at 24Hz/25Hz/30Hz and 4096×2160p at 24Hz, which is a resolution used with digital theaters); an HDMI Ethernet Channel, which allows for a 100 Mb/s Ethernet connection between the two HDMI connected devices; and introduces an Audio Return Channel, 3D Over HDMI, a new Micro HDMI Connector, expanded support for color spaces, and an Automotive Connection System. HDMI 1.4 supports several 3D structures including field alternative, frame alternative, frame packing, line alternative, side-by-side half, side-by-side full, L + depth, and L + depth + graphics + graphics depth. HDMI 1.4 requires that 3D displays support the frame packing 3D structure at either 720p50 and 1080p24 or 720p60 and 1080p24. High Speed HDMI 1.3 cables can support all HDMI 1.4 features except for the HDMI Ethernet Channel.
*3D Over HDMI Defines input/output protocols for major 3D video formats, paving the way for true 3D gaming and 3D home theater applications.
*4K x 2K Video Support Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems used in many commercial movie theatres. Supports resolution up to 2160p
*Additional Color Spaces Adds support for additional color models used in digital photography and computer graphics.
*Audio Return Channel Allows an HDMI-connected TV with a built-in tuner to send audio data ""upstream"" to a surround audio system, eliminating the need for a separate audio cable.
*HDMI Ethernet Channel Adds high-speed networking to an HDMI link, allowing users to take full advantage of their IP-enabled devices without a separate Ethernet cable.
*HDMI 1.4 devices is backwards-compatible with older HDMI (v.1.0 - 1.3) devices
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