"The first Ultra HD displays were introduced in 2012, but today's Dual-Mode DisplayPort-to-HDMI cable adaptors limit display resolution to 1080p, " said Craig Wiley, senior director of marketing at Parade Technologies, and VESA Board of Directors chairman.

ENGADGET: VESA outs latest DisplayPort Dual-Mode 1.1 standard with 4K HDMI support

Among several refinements to improve interoperability, the updated standard enables a higher data rate for DisplayPort-to-HDMI cable adaptors, providing support for HDMI 1.4 display resolutions such as 1080p 3D at 60Hz, and Ultra HD (4K x 2K) up to 30Hz frame rate, as well as 1080p with deep color.

ENGADGET: VESA outs latest DisplayPort Dual-Mode 1.1 standard with 4K HDMI support

Prior to the updated Dual-Mode Standard release, Dual-Mode cable adaptors were limited to a TMDS clock rate of 165MHz providing support for display resolutions up to 1080p with 60Hz and 24 bits color.

ENGADGET: VESA outs latest DisplayPort Dual-Mode 1.1 standard with 4K HDMI support