news archive
Denver
International to Install Over 100 Networked Clarity RP
Displays
Portland,
Oregon, August 12 - Clarity Visual Systems, Inc. today
announced a new contract with Denver International Airport
(DEN) to provide approximately 128 high-resolution,
rear-projection displays near security checkpoints in
Jeppesen Terminal.
Clarity will
provide 40-inch Wildcat and 38-inch Leopard AP/LCD™
rear-projection (RP) displays as flight information display
systems (FIDS). Clarity's order is scheduled to be completed
by September 2002. Plans call for additional bid proposals
to replace more displays in DEN's infrastructure during the
next four years. Denver International is the fifth-busiest
airport in the United States and the 10th-busiest in the
world in terms of total passengers.
"With
installations for a dozen airports or airline customers
around the world, the aviation market has proven to be a
significant growth market for us and we expect more to
come," said Paul Gulick, president of Clarity.
Hoffman Video
Systems (Glendale, California) is responsible for design and
system integration of DEN's order. "Clarity displays
were a natural choice because of their high-quality, high
resolution displays and experience in providing products and
services to the aviation market," said Dan Mastro,
Hoffman's CEO.
Information: www.clarityvisual.com.
DOE Awards
UDC Contracts to Study Feasibility of OLEDs in General
Lighting
Ewing, New
Jersey, August 12 - Universal Display Corporation (UDC)
announced today it has been awarded two $100,000 Small
Business Innovation Research (SBIR) contracts by the U.S.
Department of Energy (DOE) to demonstrate the feasibility of
using its proprietary, high-efficiency phosphorescent OLED (PHOLED™)
and flexible OLED (FOLED™) technologies for general
lighting applications. Since general lighting is responsible
for more than 20 percent of U.S. energy consumption, new
broadband white lighting sources that offer significant
improvements in power efficiency and color quality over
traditional incandescent and fluorescent lighting are highly
desirable.
Based on
proprietary technology developed for the flat panel display
industry, UDC and its research partners, Princeton
University and the University of Southern California, have
identified several new highly efficient approaches to
generate white light that may open up significant new
opportunities in the general lighting industry.
In the DOE
SBIR Program entitled "White Illumination Sources Using
Striped Phosphorescent OLEDs," UDC and its partners
will focus on demonstrating a broadband white light source
built on a flexible plastic substrate that consists of a
series of highly efficient red, green, and blue PHOLED
stripes that combine to emit white light.
In the second
DOE SBIR Program, entitled "Monomer-Excimer
Phosphorescent OLEDs for General Lighting," the team
will focus on demonstrating an innovative PHOLED structure
that utilizes the combined monomer and excimer excited
states to achieve high-quality, efficient white emission.
Steven V.
Abramson, President of UDC, said, "Universal Display's
PHOLED and FOLED technologies could be key to meeting the
demanding power efficiency and cost requirements of general
lighting, as well as play a significant role in an industry
that is projected to grow to $40 billion over the next five
years."
Information: http://www.universaldisplay.com.
Single-Molecule
EL Demonstrated at Georgia Tech
Atlanta,
Georgia, August 12 - Using photon emissions from individual
molecules of silver, researchers at the Georgia Institute of
Technology have created what may be the world's smallest
electroluminescent light source.
Believed to
also be the first demonstration of electroluminescence from
individual molecules, the work could lead to new types of
nanometer-scale optical interconnects, high-resolution
optical microscopy, nanometer-scale lithography, and other
applications that require very small light sources. And
because single molecules emit one photon at a time, the
technique could ultimately be the basis for high-efficiency
quantum information processing.
The effect
was first reported in silver clusters composed of 2-8 atoms,
and subsequently in copper clusters, suggesting the effect
may broadly apply to other metals. Details of the research
were reported in the August 6 issue of the Proceedings of
the National Academy of Sciences.
"This is
the first time that anyone has seen electroluminescence from
individual molecules," said Robert Dickson, assistant
professor in Georgia Tech's School of Chemistry and
Biochemistry. "What we have observed involves
sub-nanometer-scale sources to which an electric field is
applied. These molecules emit very strongly, and are very
robust."
Dickson and
collaborators Tae-Hee Lee and Jose Gonzalez began with thin
films of silver oxide that are not electroluminescent. By
exposing the film to an electrical current of approximately
one amp, they activated some of the silver oxide molecules,
which then appeared within "discolored" regions in
the film. When electrodes were attached to the film and an
alternating current applied, a thin line of silver clusters
began to emit light in colors that varied depending on the
size of the clusters. The system operated at room
temperature.
"When
you zoom in more closely, you can see the emissions coming
from single molecules," said Dickson. "They blink
and have dipole emission patterns. You see an incredibly
thin line of emissive species close to the middle of the
sample."
While dc
voltage produced electroluminescence in the activated silver
clusters, Dickson and his colleagues found that
high-frequency ac voltage - above 150 MHz - produced a
response as much as 10,000 times greater. Dickson believes
the ac voltage created rapid recombination within single
molecules in a very narrow section of a sample, producing
the enhanced response. Bulk materials normally cannot
respond quickly enough to the alternating current to enhance
the electroluminescence to such a large degree
"We know
that the charge is recombining in the molecules because you
can simultaneously measure the electroluminescence and the
current, and the peaks are correlated," he said.
"This is an extremely interesting materials system, not
only because of the single-molecule electroluminescence, but
also because of the resonance we see at relatively high
frequencies."
Though the
discovery may have important implications for optoelectronic
devices, Dickson's group is focusing first on understanding
the basic process. "A lot of engineering will have to
be done to make any potential optoelectronic devices both
useful and stable," he said.
Information: Robert
Dickson. Tel: (404) 894-4007, Fax: (404) 894-7452, email: robert.dickson@chemistry.gatech.edu.
Daeyang
Buys $8 Million Worth of eMagin Microdisplays
Seoul, Korea
and Hopewell Junction, New York, August 7 - eMagin Corp. and
Daeyang E&C Co., Ltd. announced that Daeyang has signed
a purchase agreement for over US$8 million of eMagin's
microdisplays and optics for delivery during the remainder
of 2002 and 2003. eMagin's SVGA-3D OLED-on-silicon display
with built in stereovision capability will be incorporated
into wearable consumer headset displays (HMDs, also known as
face-mounted displays or FMDs in Asia) to be produced by
Daeyang for electronic games, personal-computer accessories,
and other applications.
"eMagin's
products are ideal for opening the HMD marketplace. The
built-in stereovision, USB power-port compatibility, and
large field-of-view compatibility will make for a compelling
new product," said Daeyang's Chairman Jun Uk Lee.
Daeyang
currently produces head-mounted display devices, as well as
other electronic consumer products. eMagin's OLED
microdisplays will first be applied to Daeyang's upcoming
stereovision 3D FMD with head tracker to penetrate into the
consumer game market. Daeyang believes the anticipated
successful mass production of OLED microdisplay panels
triggered by this contract will significantly encourage
Daeyang's strategic expansion into the emerging
virtual-reality industry.
Information: www.emagin.com,
www.dyenc.co.kr.
