仓库库位管理디스플레이공학I
努力的说说2005. 1학기OLED
Changhee Lee
School of Electrical Engineering and Computer Science
Seoul National Univ.
chlee7@snu.ac.kr
디스플레이공학I
2005. 1학기OLED
Outline
•
Introduction to OLED displays
-History of OLED display -OLED materials
-OLED fabrication and color patterning
-Characteristics of OLED displays and comparison with other technologies -
OLED applications荀玫
•
Basic physics and chemistry of organic miconductors
-Carbon, Chemical bonds, Electronic energy structure -Optical properties of organic miconductors -
Electrical properties of organic miconductors
•
OLED device physics
-Carrier injection and transport
-Electron -hole recombination and emission of light -Doping: fluorescent or phosohorescent dopants -Electroluminescence efficiency -
OLED reliability and degradation
•Superior viewing performance:
emissive bright colors, wide viewing angle, fast respon time, and high contrast
•Excellent operating characteristics:十二星座出生日期
low operating voltage, power efficient, and wide temperature range
•Good form factor:
Thin, light-weight, rugged, and flexible
•Simple fabrication process:
vacuum deposition, inkjet printing, spin coating,roll-to-roll (web) processing
Vacuum Deposition
Fine Metal Shadow Mask
Substrate
Source
ÆUltimate Portable Communication Devices
/
Red
Ink-jet
Green
Inkjet Printing
Blue
Small Molecule OLED
’87’88’89’90’91’92’93’94’95’96’97’98’99’00’01’021st Polymer LED Cambridge ITO/PPV/Al Kodak
Bilayer
ITO/Diamine/Alq 3/Mg:Ag Pioneer
Quinacridone doping UCSB Casting with MEH-PPV Pioneer AlLi cathode Uniax Flexible PLED PET/ PANI/ MEH-PPV/Ca Linkoping U.Variable Colors from Polymer Blend Idemitsu Kosan CCM TDK Poly-Si TFT Yamagata U.
White OELD
UCSB, Cambridge, Utah
Lasing from Polymer Microcavitiy
Princeton U.SOLED Seiko-Epson Ink-Jet printing Pioneer
Full-color PMOLED By shadow mask
Kodak LiF/Al cathode Princeton U.Phosphorescent OLED Sony Top-emission 13.1”AMOLED
Polymeric OLED
莱茵河战役’03’04SDI 3.6”LITI AMOLED
Seiko-Epson
40”full color PLED Ink-Jet
TMD 17”full color PLED Ink-Jet Sanyo-Kodak LTPS-TFT
AMOELD
IDTech 20”AMOLED α-Si TFT Seiko-Epson Ink-Jet full color SDI的英文
Both-side emissive 2.2”AMOLED LGE-LPL 20.1”AMOLED LTPS-TFT ’05
SEC
21”AMOLED α-Si TFT
SDI
17”AMOLED
Non-lar LTPS-TFT
Kodak Fluorescent
dye doping
1st OLED 1982C. W. Tang
USP 4,356,429
1983R. H. Partridge PVK
PVK/SbCl5 doping
1960s Organic Single crystals
1980s organic Thin films Sony
AMOLED
3.8”PDA Dr. Ching W. Tang Eastman Kodak
Sir Richard Friend, FRS
University of Cambridge
Cambridge Chemical Tuning of Polymer IBM, Bayer PEDOT:PSS
디스플레이공학I
2005. 1학기OLED
C. W. Tang (Kodak): 1st
OLED
C. W. Tang and S. A. VanSlyke, Appl. Phys. Lett. 51, 913 (1987)
ITO Diamine Alq 3Mg:Ag Glass
+
++
-
Φe
Light风雨后的彩虹
Φmetal
HOMO Alq3
LUMO Alq3升旗仪式观后感
HOMO Diami
ne
LUMO Diamin
e
ΦITO
Electron hole 60
40
20
0L i g h t (a r b . u n i t s )
800
700600500
400
Wavelength (nm)
Alq3
N O N
O N
O Al -
-
•High efficiency: 1 % quantum efficiency (electron/photon), 1.5 lm/W luminous efficiency •Low drving voltage: more than 1000 cd/m 2below 10 V
