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Friday 9th May 2008

TFTs go wireless

Posted at: 6:54am 9th May 2008 by James Morris

Ditch D-SUB and DVI and send images by magic. Or Wireless USB, whichever you have more faith in.

Samsung TFT

Samsung’s SyncMaster 940UX screen introduced the idea that you don’t need a graphics card to hook up a second monitor – USB 2 will do. Now it appears you won’t even need a wire. DisplayLink, the company providing the tech behind the Samsung’s TFT’s ability to connect via USB has announced a collaboration with WiQuest to take the wires out of the equation.

WiQuest is a leading proponent of Wireless USB, which is based on the long-awaited Ultra-WideBand platform. This promises data rates of 480Mbits/sec at up to 3 metres, and 110Mbits/sec at up to 10 metres. So, at least at close range, Wireless USB offers comparable performance to USB 2.

When we tested the Samsung SyncMaster 940UX, it worked better than we expected. Whilst you can’t game over DisplayLink (there’s the small matter of it lacking support for hardware 3D acceleration for a start), video playback is supported, and it’s more than adequate for everyday apps. There’s no reason why this shouldn’t work over a comparably quick radio link.

Wireless USB hub devices have been shipping since mid-2007 from the likes of Belkin and D-Link, and notebooks from Dell and Lenovo (such as the T61p) have started to appear with the technology built in. With Belkin’s Wireless USB Hub already able to bring the technology to any desktop PC, it’s already feasible to make Samsung’s SyncMaster 940UX wireless.

At the end of 2007, DisplayLink also announced the world’s first Wireless USB graphics adapter, this time produced in collaboration with Alereon. Reference designs were demonstrated at CES in January. However, DisplayPort also intimated that a range of WiQuest/DisplayLink products were likely to be available commercially by the end of 2008.



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Comments
Not if it's wall mounted and you want the...........

Not if it's wall mounted and you want the cabling hidden. You still need to channel out for cabling so why pay extra for WiFi if you end up doing it anyway?

Comment by crazyceo at 12:14pm 12th May 2008



Power cabling is everwhere

Wireless power could be on its way for things like TVs - did you read the feature in Custom PC? ;^> But, anyway, power cabling is all over your house. Data cabling isn't. The 3m range of this technology is just about enough to make it useful in most living rooms.

Comment by jdmorris1 at 10:19am 12th May 2008



All of the Major LCD makers going wireless this year!

Sony, Samsung, Toshiba have all announced they will be releasing their WiFi offering for 1080p HD quality broadcasts. It appears to be linked to a sender which is attached to your SkyHD, Bluray or Cable box so you don't need to drill or channel out the wall for the HDMI cable. However, this option will add around £500 to the price of the TV. Is it worth it? Well considering you will potentially still need to drill or channel out the wall for the power cable, I'm not sure the cost of this wireless option is worth it. Although, it's nice to see the progress.

Comment by crazyceo at 9:49am 12th May 2008



Two big uses...

It will do video, and potentially HD in the future. So imagine that you could have your projector hanging from the ceiling... and no need to run a video cable to it, just wires. And obviously there are the corporates doing presentations - just put the notebook near the big TFT in the boardroom no messing around with cables - and the shop displays. Definitely has a use - just not for gaming enthusiasts.

Comment by jdmorris at 11:13pm 11th May 2008



@ricka: even if it needs power thru a molex thats connected through the backplate, or even external powerbrick would get me happy.

Comment by thegreat0mi at 10:43am 11th May 2008



Dongles to this!

If it's possible to make new monitors which can do this, then isn't it possible to make wifi dongles which attach to existing hardware and perform the same function?

Comment by ricka at 7:54pm 10th May 2008



i think...

that you guys are once again thinking with your personal computing hats on. the main area that this will have an application is in commercial applications like advertising booths and embedded computing.

Comment by rickykemp at 12:15am 11th May 2008



Dongles to this!

If it's possible to make new monitors which can do this, then isn't it possible to make wifi dongles which attach to existing hardware and perform the same function?

Comment by ricka at 7:54pm 10th May 2008



Dongles to this!

If it's possible to make new monitors which can do this, then isn't it possible to make wifi dongles which attach to existing hardware and perform the same function?

Comment by ricka at 7:54pm 10th May 2008



whats the data rate required to do 32-bit colour on 1280x1024 res at 60hz refresh? ...and where is the rasterization happening - in the USB? personally, i wouldve preferred a DVI-wireless link rather than this... but sure does makes the likes of the nVidia Tesla sound like the new rage. maybe not... the traffic would be sharing lanes with I/O and itll get too crowded. besides, all mobos already come with graphics anyway.

Comment by thegreat0mi at 10:46am 10th May 2008



To be honest.....

I think it would be a good idea, removing a few wires here and ther does make for easier packing up and setting up.... I would have wireless, for the simple fact that i could have the screen 3 meters from my face not 30cm away from it... the cable is clearly not long enough, and without a cable, its one less messy one dangling about behind my desk.... However..... The graphics one im concerned about... the transfer of this data onto say a 24 inch monitor playing crysis...... No wait..... i didnt just go ther lol

Comment by Lightning_Pete at 10:16am 10th May 2008



as well as the total pointlessness of having a wireless monitor (kindly pointed out by l3v1ck below), do we really need another wireless standard? we already have bluetooth and wifi, both of which already have readily and widely available dongles, though admittedly only wifi has the kind of bandwdith they are talking about, surely it would be much easier to just use that

Comment by soddit113 at 8:44am 10th May 2008



It's such a hardship having to have a monitor cable plugged in..... NOT. What's the point? OK, with wireless TFT, keyboard and mouse you could have your PC across the other side of the room, but then you'd have to get up every time you wanted to turn it on or use a USB stick or put a CD in the ROM drive. Most people would still have the PC next to the desk with their TFT. So what's the problem with a cable? There's just no need for wireless.

Comment by l3v1ck at 4:34am 10th May 2008



not a great idea imo.

usb is not a very good connection for video signals. the teachers at my school have cameras connected to their projectors so they do not need over head projectors, most of them are connected with simple VGA or DVI connectors, but one of my teachers has it connected w/ a usb A to B cable and it is lagy as HELL. i know it is not exactly the same as a monitor, but it is comprable. we need to move to optical, i am using a optical connection from my x-fi to my audio reciever for my sound system, and it is great; because you do not have any electrical signals being sent a recieved, there is no such thing as interference. which is a big concern considering the mess of wires most people have behind their pc's. the tech probably needs to evelve a bit more, but i can see it happening.

Comment by yougotkicked at 10:41pm 9th May 2008



Lag Sucks...

Won't WIRELESS USB 2 lag like hell? IE. USB isn't the fastest of interfaces anyway, but just wireless-ifying it will make it slower still!

Comment by bally199 at 9:52pm 9th May 2008



Defo Must have

Gimme, Gimme, Gimme!!!!.

Comment by NikoBellic at 7:30pm 9th May 2008



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