Print 27 comment(s) - last by theapparition.. on Apr 2 at 11:50 AM

New transparent OLED displays could lead to navigation systems built into car windshields

For many the ideal form of in car electronics like GPS navigation systems and entertainment devices like TVs would be clear devices that only show up when in use. This type of technology could create GPS navigation display embedded into the windshield of a car so you can see a map without having to take your eyes off the road.

Researchers at Purdue University have created the first active matrix display that uses a new class of transparent transistors and circuits. The researchers say this is a first step towards flexible color monitors and “heads-up displays” in car windshields.

The transistors used in the display are made of nanowires, which are tiny cylindrical structures assembled on thin glass or plastic films. The nanowires used by the researchers for the display are as small as 20 nanometers or about a thousand times thinner than the average human hair.

The nanowires were used to create an OLED display that rivals current flat-panel TVs in brightness. David Janes, a researcher from Purdue University’s Birk Nanotechnology center and a professor at the school of Electrical and Computer Engineering, said, “This is a step toward demonstrating the practical potential of nanowire transistors in displays and for other applications.”

The researchers were able to show how to fabricate nanowire electronics at room temperature in a process that could be practical for commercial manufacturing according to Tobin J. Marks, a researcher working on the project.

The current production process for OLED electronics is complex and costly making OLED TVs and other OLED electronic devices difficult to make. This manufacturing difficulty is part of the reason Sony’s XEL-1 OLED TV cost so much and is in such short supply.

The researchers also say that the technology they have developed has uses other than displays. They say the technology could also be used to create antennas that aim microwave and radio signals more precisely than current antennas. These new antennas could make cell phone reception better and make eavesdropping on military communications more difficult.

One major challenge remains according to the researchers before the technology they developed can rival current TVs. Janes says, “Displays in television sets are able to illuminate a particular pixel located, say, in the 10th row, fifth column. We aren't able to do that yet. We've shown that we can select a whole row at a time, not a single OLED, but we're getting close."

The researchers created their nanowire transistors out of a semiconductor called indium oxide, considered a potential replacement for silicon in future transparent circuits. Electrodes used in the OLEDs are made up of these transistors and electrodes made from indium tin oxide and plastic capacitors.

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By FITCamaro on 4/1/2008 4:17:01 PM , Rating: 5
You're not looking at the potential here. We can put sensors in cars that detect cell phone usage and put a message along the bottom of the windshield that says "HANG UP AND DRIVE!!!"

Seriously though, with the right technology, this could be used to highlight potential threats to the driver on the windshield.

By therealnickdanger on 4/1/2008 4:21:36 PM , Rating: 3
The current Corvette has the option of displaying telemetry data on the windshield to keep your eyes on the road and not looking down at the dash. It works pretty frickin sweet.

By root mean sq on 4/1/2008 5:02:35 PM , Rating: 3
kinda like the cars from children of men. i always thought that was cool. a vitrual dasboard at the bottom of your windscreen seems like a more practical application. Maybe soon minivans will come with the passenger windows as OLED screens to watch DVDs on, and the kiddies can dial up or down on the transparency depending on whether or not they wanna see the scenery. or u can put them in the windows and seperator in a limo and make it seem like you're in a submarine!!

or maybe i'm daydreaming too much...

By FITCamaro on 4/1/2008 7:53:59 PM , Rating: 2
Been an option in cadillacs and pontiacs for years as well buddy.

By fic2 on 4/1/2008 9:07:54 PM , Rating: 2
I don't think a whole lot of people look at their dash. I live in a downtown area and you wouldn't believe the amount of idiots I see driving at night without their lights on. If they looked at their dash occasionally they might see that it isn't lit and turn their lights on.

By theapparition on 4/2/2008 11:50:29 AM , Rating: 2
It was an option on the older generation (C5 corvettes from 98 on.
It works pretty frickin sweet.

Yes....yes it does.

By MrBlastman on 4/1/2008 4:31:38 PM , Rating: 2
hahaha I like the hang up and drive :)

The potential threats is a nifty idea, though it'd require expensive sensors in the front of the car, I can see that being very useful over time.

You could also superimpose a FLIR image on the viewscreen which WOULD be pretty darned cool - heck, a FLIR image on each window (assuming you utilize multiple sensors facing in different directions with varying FOV's). This would allow night driving without headlights.

The military has been superimposing FLIR onto the HUD for years (but notsomuch anymore with the advances in independent headgear - aka goggles).

Just keep the TV and Pron off of the windshield.

If you don't - they might have to come up with wipers for INSIDE the car.

By uhgotnegum on 4/1/2008 5:07:27 PM , Rating: 5
I know that Blastman won't like this, but boy would I love being able to text the car next to me and be able to say, "for the love of God, the turn signal is less than a finger's length away!" The potential here is endless...

"YOU! Learn to navigate a four-way stop!"
"Hey...old guy...the speed limit is 20 mph faster."
"Why would you buy a car that looks like a police cruiser? That's just stupid."
"I'd just like to thank you for letting me listen to your bass...not the rest of your music, just the thumping, repetitious, worthless-by-itself bass."

and my personal favorite...
"If you are being passed on the right side, get your oblivious *** out of the left lane!"

By AmishElvis on 4/1/2008 5:15:15 PM , Rating: 2
I've said for years that the driver's cell phone number should be posted on the outside of every car. Maybe replace the license plate.

By FITCamaro on 4/1/2008 7:55:15 PM , Rating: 2
I'd get arrested for my comments to people...

"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain
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