Feeds

Flexible displays bend towards reality

PHOLED meets polyethylene naphthalate

SANS - Survey on application security programs

A team of American engineers has developed a process that moves flexible self-illuminated displays a step closer to mass-manufacturing marketability.

Researchers at Arizona State's Flexible Display Center (FDC) have combined a flexible polyethylene naphthalate substrate from DuPont Teijin Films with a PHOLED (phosphorescent organic light-emitting diode or device) display system from the Universal Display Corporation to create a 4.1-inch monochrome 320-by-240-pixel prototype.

Flexible OLED displays have long been thought to be an ideal solution to the challenge of building pocketable devices with large displays. Such a display could, for example, be unrolled from inside a handheld like a window shade or opened like a book, thus providing a viewing area larger than a display simply built onto the surface of the device.

Such displays have proved devilishly difficult to develop, however. The first truly flexible OLED display was demonstrated by Sony back in 2007. The company has continued to refine its technology, demoing an upgraded version as recently as this year's Consumer Electronics Show in January. Japan's NHK has also shown a prototype, as has Samsung.

The problem with flexible OLEDs - as is true with so many leading-edge technologies - has been manufacturability and cost. But since the FDC's process uses a number of standard manufacturing methods, it should have a significant edge in this respect.

According to a press release issued by the FDC and Universal Display, the new technology "achieves the same brightness as traditional displays with extremely low power consumption," two additional factors that point to a promising future in handhelds. Universal Display, in fact, claims that its PHOLED technology can convert "up to 100 percent" of the power fed to it into into light, while old-style fluorescent OLEDs convert only 25 per cent into usable light.

Although the new - and exceptionally flexible - prototype is a monochrome display, the FDC's director of engineering Shawn O’Rourke says: "The fact that we have achieved a functional flexible OLED manufactured directly on plastic using the Center’s manufacturing process represents a significant achievement, and continued developments over the next few years will lead to full color, full motion video flexible displays."

For more information, show up at 11:40 a.m. this Friday at the Society For Information Display's 47th annual Display Week 2009 conference in San Antonio, Texas, when the developers will present their tightly titled research paper, "Active-Matrix PHOLED Displays on Temporary Bonded Polyethylene Naphthalate Substrates with 180°C a-Si:H TFTs".

And while you're in San Antonio, don't miss the Flying Saucer Beer Emporium, which - with over 80 beers on tap - offers just about as much flexibility as a bonded polyethylene naphthalate substrate. ®

3 Big data security analytics techniques

More from The Register

next story
So, just how do you say 'the mutt's nuts' in French?
Vital linguistic question interrupts LOHAN spaceplane mission
95 floors in 43 SECONDS: Hitachi's new ultra-high-speed lift
Guangzhou skyscraper denizens to hold on to hats
Most Americans doubt Big Bang, not too sure about evolution, climate change – survey
Science no match for religion, politics, business interests
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
LOHAN and the amazing technicolor spaceplane
Our Vulture 2 livery is wrapped, and it's les noix du mutt
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
STEALTHY NANOROBOTS dress up as viruses, prepare to sneak into YOUR BODY
Cloaking techniques nicked from viruses tackle roadblocks on way to medical frontier
prev story

Whitepapers

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.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
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.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.