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The Georgia Tech -COPE
Distinguished Lecture Series
Yamagata University
White OLEDs for Displays and General
Lighting
Reception to Follow
Friday, June 6, 2014 at 4pm
www.cope.gatech.edu
presents
Junji Kido
Environmental Science and Technology Building—L1255
Copyright 2014 • Georgia Institute of Technology • Center for Organic Photonics and Electronics • An equal education and employment opportunity institution
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About Junji KidoW
hite OLED
s for Displays and G
eneral Lighting
In 1993, we developed w
hite-light-emitting O
LEDs for the
first time. Since then, the perform
ance of white O
LEDs have
steadily improved and, today, they are considered to be the
light source of the next generation. OLED
displays based on w
hite OLED
s have also been developed and large-size displays have been com
mercialized.
Recently, high quantum effi
ciencies (QEs) are obtained by
using phosphorescent emitters such as iridium
complexes.
External QE of 25—
30% w
as achieved for blue, green and red O
LEDs, w
hich correspond to an internal QE of nearly
100%. D
evice lifetime at high lum
inance levels, which is
required for general lighting, is significantly improved by
using a multiphoton structure.
By combining the above techniques, O
LEDs can be
extremely effi
cient and possess extremely long lifetim
es, even at high lum
inance level. In 2010, Lumiotec Inc.
started the small-scale production of w
hite OLED
panels in Yonezaw
a, and luminaires using their panels are now
com
mercialized. In this talk, recent progress in w
hite OLED
w
ill be discussed.
Junji Kido was born in O
saka, Japan, in 1959. He received
his B.S. degree in applied chemistry from
Waseda U
niversity, Tokyo, Japan, in 1984 and the M
.S. and Ph. D. degrees in
polymer chem
istry from Polytechnic U
niversity, New
York, in 1987 and 1989, respectively.
In 1989, he joined the department of polym
er chemistry at
Yamagata U
niversity in Japan as an assistant professor. He
was prom
oted to an associate professor in 1995, and to a full professor in 2002. From
1990 to 1992, he was associated as a
research scientist at Brookhaven National Laboratory.
His current research activities are focused on organic
electroluminescence m
aterials and devices. His w
ork has been recognized by aw
ards from the Society of Polym
er Science, Japan and Society for Inform
ation Display,
U.S.A
. (2002 and 2008). He is serving as a project leader
for the Japanese national project on “Advanced Organic
Semiconductor D
evices” sponsored by METI (M
inistry of Econom
y, Trade and Industry) since 2002, and as a General
Director for Research Institute for O
rganic Electronics in Yam
agata, Japan, from 2003 to 2010.