IPad'S 3D: Tables Market Of The Future
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iPad's 3D: tables market of the future

It's just a matter of time - and it could happen sooner than you might think. As an army of rival tablets bear down on Apple's golden child, 3D is increasingly looking like its best next step.(cheap lcd monitor)

The internet began buzzing with speculation about the iPad 3 even before Apple closed the doors on the iPad 2 press launch. With Jobs & Co understandably keeping mum on what's to come, the rumour mill has run amok ever since. So we'd thought we'd add some conjecture of our own.

iPad 2

THIRD DIMENSION: Is Apple planning to introduce 3D with the iPad 3? From a naming point of view it would make a lot of sense

Read on and we'll argue why the time is right to make the iPad 3D, how the display tech might work, and recap what's Apple's principal rivals are already doing in 3D space.

Next generation 3D display

Speculation about the iPad 3 principally focuses on its display - and with good reason. It's the most obvious upgrade Apple can make to its tablet.

Currently, the iPad 2 has a 1024x768 resolution screen. But Apple can do better.

The Retina Display used by the iPhone 4 has no obvious dot structure and offers crystal clear text. That's because its pixels are just 78 micrometres wide.

This so-called Retina Display has given Apple a visible advantage in the mobile phone market and it could well do the same in the increasingly congested tablet arena. Bringing Retina Display technology to the iPad would quadruple its resolution. Hints of a 1536 x 2048 pixel standard are already beginning to emerge, with Apple's Newstand app supporting both 1024 x768 and 1536 x 2048 resolutions.(nikon d3000 battery)

But even a Retina Display isn't a big enough deal to keep the iPad 3 ahead of the competition. It's common knowledge that world's biggest screen manufacturers are fast-tracking autostereoscopic 3D technologies. They see 3D as a driver both for hardware sales and content, but all know full well that consumers would rather not wear 3D goggles if they don't have to.

Unfortunately producing large screen auto-3D is difficult. Every plane of depth you create robs the screen of resolution. To bring out a large no-glasses display you have to use a next generation 4K2K panel - that's 8 million pixels give or take. Today's 1920 x 1080 Full HD screens are 2 million pixels. So to produce a no-glasses 3D panel requires four times the resolution as a flat picture - which is exactly the same PPI bump that Apple's 78 micrometers pixel technology allows. Could this technique be used give the iPad no-glasses 3D? The numbers seem to add up.

Adding fuel to the three dimensional fire was a demonstration by panel maker CPT (Chunghwa Picture Tubes) at the recent Display Taiwan show (which ran June 14 - 16).

On its booth CPT was showing a 3D touchscreen display shoehorned into an iPad case. The display was not autostereoscopic; you had to wear passive 3D glasses to see the demo still images. CPT was saying nothing about the exhibit, but given how cool the end result looked we like to think it's a clear indicator of things to come.

So what are Apple's rivals doing?

LG has already shown its first 3D tablet. The Optimus Pad has an 8.9 inch 15:9 display, with 1280 x 768 resolution. Unlike the Optimus smartphone, it's not autostereoscopic - it requires you to wear 3D spex. Still, the advantages of its 3D functionality are clear. The Optimus pad, which runs the Android 3.0 Honeycomb OS, has dual 5MP cameras for 3D photography and camcorder stereoscopy. 3D footage can be viewed on the tablet or squirted out to a 3D TV.

Meanwhile, over at Computex, Asus has just unveiled the Eee Pad MeMo 3D. This Honeycomb alternative sports a 7-inch parallax barrier no-glasses 3D display with a resolution of 1280 x 800. As a point of difference it bundles a stylus, so you can use it as a digital notepad. However, Asus is banking on 3D games, movies and photos to be a big draw.

Eee memo

ABOVE: The Eee Pad MeMo

HTC has already gone glasses-free 3D with the HTC Evo 3D smartphone. Next step: a 3D HTC tablet? Not really a big leap of the imagination is it?

The home entertainment angle

The pressure to take tablets into the third dimension will be compounded as the slate market shifts on its orbit and becomes part of the living room entertainment experience.

All the major 3D TV vendors are planning home entertainment tablets, positioning them as secondary, personal TV devices. Soon content will flow seamlessly from one to another - and with all decent tellies soon offering 3D compatibility does it really make sense to keep tablets two dimensional?

The expert's view

Sky's Chief Engineer and 3D evangelist Chris Johns has no doubt about the potential, and user appeal, of auto-3D. "I don't think the technology is there for bigger sets," he told us when we ambushed him at a DTG tech briefing, "but I can't see it being very long before the major tablet manufacturers are delivering some form of 3D offering that you can download to."

The man from Sky believes that auto-3D is destined to become the de facto way of watching 3D on smaller screens.

"When I first saw the Nintendo 3DS screen I was wowed," he admits. In fact, Johns was so impressed by Nintendo's parallax barrier screen that he offered Ninty codec support, plus 3D content if needed.

"It'll be interesting to see how Apple reacts to the increasing number of mobile products which are adopting auto-3D," he told us pointedly.

Indeed it will.

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