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Thursday, 15 January 2009 10:46

DisplayPort 1.2 doubles bandwidth, enables Stereoscopic 3D

Written by Jon Worrel

Image

And a mini-DisplayPort for laptops


For those
who have been following VESA standards,  DisplayPort is a royalty-free digital display interface concept introduced back in May 2006 that has been trying to gain ground in the computer industry for some time now. 

The open industry standard, supported by HP, Philips, Samsung, AMD, Nvidia, Intel and many other companies, seeks to eventually replace the de facto DVI standard over the next several years due to its greater bandwidth allowance, slimmer display support, internal chip-to-chip communication, and reduced electromagnetic interference levels among other technical advantages.

According to Register Hardware, VESA is set to publish its new DisplayPort 1.2 specification by the middle of the year.  Among the interface's central improvements include a doubling of available bandwidth to 5.4 Gbit/s.  As a result, this should provide sufficient throughput for 120Hz stereoscopic 3D imagery at 1920 x 1080, or four standard 1920 x 1200 screens.  However, VESA anticipates multi-display setups to be linked in a daisy-chain fashion rather than through a four-way split cable.

Although DisplayPort lacks xvYCC color space support in contrast to HDMI, the increased bandwidth in the 1.2 specification will allow up to 3840 x 2160 resolutions to be reached with a color depth of 30 bits per pixel.


Very soon, laptop vendors will be able to implement the interface in upcoming lineups with the mini-DisplayPort connector.  According to Apple, the smaller version of the interface is 10% the size of a full DVI connector.  As a result, there is more free space inside a laptop and on its sides.

Last modified on Thursday, 15 January 2009 23:22

Jon Worrel

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