Feeds

Any port in a storm: the display tech battle

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

High performance access to file storage

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.

High performance access to file storage

Next page: HDMI

More from The Register

next story
Feast your PUNY eyes on highest resolution phone display EVER
Too much pixel dust for your strained eyeballs to handle
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Microsoft lobs pre-release Windows Phone 8.1 at devs who dare
App makers can load it before anyone else, but if they do they're stuck with it
Report: Apple seeking to raise iPhone 6 price by a HUNDRED BUCKS
'Well, that 5c experiment didn't go so well – let's try the other direction'
Zucker punched: Google gobbles Facebook-wooed Titan Aerospace
Up, up and away in my beautiful balloon flying broadband-bot
Nvidia gamers hit trifecta with driver, optimizer, and mobile upgrades
Li'l Shield moves up to Android 4.4.2 KitKat, GameStream comes to notebooks
AMD unveils Godzilla's graphics card – 'the world's fastest, period'
The Radeon R9 295X2: Water-cooled, 5,632 stream processors, 11.5TFLOPS
Sony battery recall as VAIO goes out with a bang, not a whimper
The perils of having Panasonic as a partner
NORKS' own smartmobe pegged as Chinese landfill Android
Fake kit in the hermit kingdom? That's just Kim Jong-un-believable!
Gimme a high S5: Samsung Galaxy S5 puts substance over style
Biometrics and kid-friendly mode in back-to-basics blockbuster
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
HP ArcSight ESM solution helps Finansbank
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Mobile application security study
Download this report to see the alarming realities regarding the sheer number of applications vulnerable to attack, as well as the most common and easily addressable vulnerability errors.