FEATURE ARTICLE (A0006):
Peering
into visual future with OLEDs : -
OLEDs, or Organic Light-Emitting Diodes,
who say the technology could one day, revolutionize
many parts of the high-tech industry.
With the flexible version of OLEDs, tiny screens can
be narrower than the width of a human hair, potentially
capable of creating items like thin, portable newspapers
that roll out of a pen-size device and video screens
embedded in clothing. OLEDs that aren't malleable would
be used in products that don't require them to bend,
such as flat-screen monitors.
What's so special about OLEDs?
The key is a luminous screen that has no back light,
and is therefore capable of more vibrant colors while
burning less power. It uses a process called electroluminescence,
which also means the image doesn't lose quality when
viewed from an angle.
Companies like Universal Display Corp., Cambridge Display
and Eastman Kodak are racing to complete research and
development of OLEDs, which are still three to five
years away from being widely adopted in gadgets like
cell phones screens, PDAs and digital cameras.
Although not mass-marketed yet, Eastman Kodak recently
released the first digital camera -- the Kodak EasyShare
LS633 -- that incorporates an OLED screen in the preview
window. Numerous other firms including Samsung, Sony,
Motorola, and DuPont are waiting in the wings.
But before you start dreaming of scenes from "Minority
Report," keep in mind there are some limitations
and kinks that need to be addressed.
The organic or phosphorescent nature of OLEDs means
certain colors are prone to fade faster over time. However,
Peterson says he believes it's an issue the industry
will eventually resolve.
Janice Mahon from Universal Display, demonstrating the
potential of OLEDs, acknowledges there are some challenges
ahead, but she says scientists are overcoming them.
(Universal Display works with Princeton University and
the University of Southern California.)
She brought along a prototype belt pack with a miniature
OLED screen worked into the fabric, which she says demonstrates
the portable nature of the technology.
Plenty of technologies promise the "next big thing,"
but the OLED seems to be one worth keeping an eye on.
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