NHK's flexible OLED is both literally and figuratively green

When it's not pushing Super Hi-Vision, the hopeful 7,680 x 4,320 successor to HD, NHK also dabbles in small, flexible OLED panels. The Japanese public broadcaster recently showed off a 5-inch prototype display that, while bearing a heavy green tint and very noticeable rows of dead pixels, was still a significant improvement over a similar screen it demoed in 2009. Sure, it's not quite as flexible or vibrant as Sony's rollable OLED from last year, but it does seem to suffer from fewer bad pixels -- an important step towards maturation. Don't miss the video after the break which offers some pretty nifty glimpses at a number of bendable OLEDs. It's clear the tech is still a little wet behind the ears, but we're definitely getting closer to a future populated with TVs that roll up for storage and e-readers that fold like a paperback.

Computerworld

Sony's new OLED display promises higher quality images, glitch-free brightness

It may not be as flexible as some of the other displays we saw at last week's SID conference, but Sony seems confident that its new OLED panel will deliver high quality images with enhanced, glitch-free brightness. The 9.9-inch screen transmits images in 960 x 540 resolution, boasts a ninety-six percent color gamut, and is powered by a Self-Aligned Top-Gate TFT (in which the gate material is placed above the insulator) that reduces disparities in luminosity. To achieve this, Sony developed a new, four-part manufacturing process that lowers the parasitic capacitance between the gate electrode and the TFT. The top-gate structure, moreover, shortens the TFT's channel length, making it easier to adapt the technology to larger, high-resolution displays. No word yet on when the prototype will hit the market, but when it does, it'd be nice if it's priced as reasonably as some other OLEDs from Sony.

OLED-Display

Tech-On

UDC shows off serpentine OLED lamp concept at SID 2011 (video)

We've seen flexible OLEDs and OLED lighting solutions before, but none of them conjured our sweaty club-hopping fantasies quite like this concept from Universal Display Corporation (UDC). The flexible OLED makers weren't particularly forthcoming on the specs for this color-changing apparatus, but we can tell you that it uncoils and recoils with the help of a motion sensor, and requires very little energy to power -- note that tiny wire supplying 100 percent of the required juice. UDC used this flashy lamp specifically to show off its own brand of low-energy flexible white OLED lighting, which means you won't see it popping up in B.E.D. anytime soon (if ever), but it certainly has us thinking of new ways to light up our nights. Gratuitous amounts of bouncing and beaming can be found after the break.

UDC OLED lighting concept eyes-on at SID 2011

OLED Display

Samsung's foldable AMOLED display: no creases, even after 100,000 tries

Samsung demoed some fascinating AMOLEDs at this year's CES, including 4.5-inch flexible and 19-inch transparent displays -- neither of which, sadly, will reach the market any time soon. But the innovation train keeps on rolling, and Sammy's Advanced Institute of Technology now has a prototype foldable display, which may or may not be the same reference design spotted at FPD 2008. Its two panels have a closing radius of only 1mm, meaning they practically touch when closed, yet show no visible crease when opened. In fact, the developers performed 100,000 folding-unfolding cycles to test the junction; the negligible 6% decrease in brightness was invisible to the human eye. They used commercially-available silicone rubber to achieve that seamless look, and the prototype featured a protective glass cover which could also function as a touchscreen. Obviously there's a market for touchscreens you can fold up and put in your pocket; here's hoping Samsung can make them available sooner rather than later.

PhysOrg