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

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.