Feeds

Any port in a storm: the display tech battle

HDMI. DisplayPort. UDI. Three rivals, only one winner. Which will it be?

Choosing a cloud hosting partner with confidence

Feature Take a look at the back of a typical HDTV, and you'll almost certainly see at the very least one or more Scart connectors; a handful of RCA jacks to feed in stereo audio, composite video and component video; and at least one High-Definition Multimedia Interface (HDMI) port...

You might even see a VGA or DVI connector to allow the telly to be hooked up to a PC. In the computer world, we seem to have it easy with these two: VGA for old, analogue displays and DVI for digital connections. DVI was introduced just over eight years ago as VGA's successor, but it has yet to finish it off, despite supporting analog signals as well as digital.

Then there's LVDS, often overlooked because it's hidden away in modern laptops, connecting the LCD to the graphics engine.

What's needed, manufacturers decided, is a single, universal connector to replace all these. In the TV world, that's what HDMI was designed to be: a digital successor to the many different, incompatible analogue connectors that would replace them with a single, compact, cheap and consumer-friendly plug.

UDI logo

DisplayPort logo

HDMI logo
The contenders...

Computers could do with something similar, not only to finally rid them of vestigal analogue connections but also to move to a more user-friendly connector than the bulky screwed-in DVI. It could also be used for both internal displays and external screens. What the PC world needs, in short, is something not so very different from HDMI.

HDMI, however, was designed for HDTV, and computer monitors and graphics cards can now deliver resolutions well in excess of that. But the convergence of these two worlds means more people nowadays want to connect PCs to TVs.

The upshot: three emerging standards are competing for the space on the back of desktops and notebooks used to host the link out to other picture-showing devices: HDMI, Unified Display Interface (UDI) and DisplayPort.

Website security in corporate America

Next page: HDMI

More from The Register

next story
Bono: Apple will sort out monetising music where the labels failed
Remastered so hard it would be difficult or impossible to master it again
Oi, Tim Cook. Apple Watch. I DARE you to tell me, IN PERSON, that it's secure
State attorney demands Apple CEO bows the knee to him
4K-ing excellent TV is on its way ... in its own sweet time, natch
For decades Hollywood actually binned its 4K files. Doh!
Your chance to WIN the WORLD'S ONLY HANDHELD ZX SPECTRUM
Reg staff not allowed to enter, god dammit
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Monitors monitor's monitoring finds touch screens have 0.4% market share
Not four. Point four. Count yer booty again, Microsoft
Getting to the BOTTOM of the great office seating debate
Belay that toil, me hearty, and park your scurvy backside
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.