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The description of technology for flat display panel.
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OLED displays - the present and future of the ultimate thin display
Shoichi Iino
General Administrative Manager
OLED Technological Development Division
Seiko Epson Corporation
London, 19 November 2004
Agenda
Epson’s OLED business
- What is OLED
- Why OLED is the display technology of the future
- Why we believe Epson OLED will lead the market
Flat panel display technologies
FPDFPD
PDP
LED
VFD
FED (SED)
OLEDOLED
Organic Light-Emitting Diode Display
Light Emitting Diode
Vacuum Fluorescent Display
Plasma Display Panel
Field Emission Display
EmissiveDisplays
Flat Panel Display LCDLCD(Liquid Crystal Display)(Liquid Crystal Display)
ActiveActive--Matrix LCD (AMLCD)Matrix LCD (AMLCD)
PassivePassive--Matrix LCD (PMLCDMatrix LCD (PMLCD))))))))
TFDTFDTFD
Thin Film Diode
STNSTNSTN
HTPS TFTHTPS TFTHTPS TFT
Thin Film TransistorTFTTFT
LTPS TFTLTPS TFTLTPS TFT
Amorphous Si TFTAmorphous Amorphous SiSi TFTTFT
OLED
33--LCDLCD Projection TV (LIVINGSTATION)Projection TV (LIVINGSTATION)
ApplicationMobile Fixed
StrategySize
Projection TV
Family TV
PC Monitor
Personal TVNotebook PC
Car MediaNet-PDA
CommunicatorPhoto
applications
PDADSC/DVCCellular
40"+
10"-40"
1"-3"
3"-10"
2002 2005 2007
STN
LTPS
Mobile D
isplay Segment
Mobile D
isplay Segment
Entertainment
Entertainment
Display Segm
entD
isplay Segment
TFD/TFT
Display business strategy
40"40" 60"60"
PDP/SEDPDP/SEDPDP/SED
Projection TVProjection TVProjection TV
LCD LCD LCD
SizeSize
OLEDOLED
OLED display positioning
OLED displays have the performance and cost potential to replace LCDs and PDPs.
Projection TV
LCD
LCoS
DLP
CRT
476億円
2億7,000万円
HMD
LCDLCoS
55゛゙
2020゛゙
4040゛゙
1010゛゙
Watch
$260M
PDA
Dictionary
DVC
Mobile Fixed
Voice Recorder$21M
$515M
$17M
DSC
2003年5943億円
Note PC Monitor
Portable DVD
Calculator
$193M
Portable TV
Data Projector
$1040M
Public
$370M
Pachinko/Slot
$900M
$500M
Cellular$200M
$5400M
Portable Game
$520M $550MAudio/Video
LCD
VFD
Car Clock/Meter$420M
LCD
VFD
Home Electronics
VFD
$186M
LCDOLED
$342MCar Audio
LCD
OLED
VFD
2003年1191億円
2003年2兆0547億円
PC Monitor$15.4KM
$500M
Notebook PC
$5400M
TV (incl. projection TV)
LCDPDPCRTOLEDVFDDLPLCoSElectronic paper
I-ELLED
OLED
LCD
$180M
LCD
CRT$19.1KM
LCD
PDP
CRT
Instrument
I-EL
LCD
PDP
POS、Kiosk、FA、ME…
$1800M
LCDDLP
LCoS
LED LCD
PDP
Mobile applications- LCD oligopoly -
Monochrome/multi-colour
Colour Graphics
$1082M
Car Navigation
FPD: $50 billion (2003) →→→→ $200 billion (2015)
Display market
Desktop EntertainmentDesktop Entertainment
Family EntertainmentFamily Entertainment
Mobile EntertainmentMobile Entertainment
Market Size
2003 2007 2010
Mobile TV
Car Multimedia
DSCCellularPDA
Personal TV (TV →→→→ PC)
Internet Viewer (PC →→→→ TV)
Home Theatre
Analog TV Digital TV
Entertainment market approach
Target the entertainment market.Supply exciting displays to the entertainment market.
OLED display features
The ultimate display would be thin, beautiful, and affordable!
Why OLED?
Additional features
– Thin & lightweight
– Low power
– Small- to large-sized displays
Clear Image Clear Image
Superior Image Quality
– Speed
– Contrast– Dark room contrast
– Light room contrast
– Viewing angle free
– Higher resolution
Challenges
Life-time
Large-size
Higher resolution
Competitive against LCD and PDP
Lifetime
Material life is improving by the day.
By 2007, the 10,000-hour milestone will be achieved, making the move to commercialization a reality.
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
2004 2005 2006 2007 2010
[8h/d x 360 days x 10 years]
[4h/d x 360 days x 10 years]
40” W-XGA (1280 x 768)
Large-sized display
In May 2004, Epson developed a 40" OLED.
Inkjet patterning technology was used to blaze the trail to larger OLED display sizes.
RGB pixel array
Printing OLED displays by inkjet
Surface energy is used to deliver droplets to the exact position.
A drying solvent is then applied, and an OLED thin film with RGBpixels is formed.
Droplet landing accuracy
Landing Accuracy is < ±15 µm
High pixel density (200 ppi+) displays
-30 -20 -10 0 10 20 30-30
-20
-10
0
10
20
30
X / microns
Y / m
icro
ns
0.128 mm (128 µm)
0.04 mm (40 µm)
200 ppi200 ppi40 µm
±±±±15 µm
PDP
LCD
OLED
0
5
10Speed (sharpness)
Power consumption
Life-time
Weight
Resolution
Contrast(bright room)
Contrast(dark room)
Viewing angle
LCD vs. PDP vs. OLED
A solution to the life-time problem will make OLED the truly ideal display
Structural comparison: LCD, PDP & OLED
OLED panels are simpler
OLED panels are thinner
LCD PDP OLED
Glass Substrate
Back lightGlass Substrate
Glass SubstrateGlass Substrate
Glass Substrate
Glass Substrate
Electrode
Electrode
Electrode
Electrode
Electrode
Electrode
Liquid crystalOrganic EL
Plasma discharge
Backlight
Polarizer + film
CF+TFT array
15“XGA $16030”WXGA $73015“XGA $16030”WXGA $730
NC/Monitor0
20
40
60
80
100
27%
9%
64%
39%
17%
44%
[%]
56%
[12.1-15“/15-19“ ] [20-30“]LCD TV
Oct/2004
LCD display cost structures
OLED can reduce display cost by over 50%
Why Epson?
Epson has
– Inkjet printing technology
– OLED ink technology
– TFT back-plane technology
– Display module technology
– Display driver IC technology
– Color image processing technology
– and more…
Future emissive displays (I)
Thinner, lighter, wall-mounted displays in the near future
- Active-matrix OLED display on glass
The picture on the card is not a still picture, but an amazing moving picture!
Future emissive displays (II)
Paper-like flexible displays
144 x RGB x 176Number of pixels
5.3 cm (2.1”)Size
130 ppiResolution
150 mWPower consumption
262,144 colorsNumber of Colors
2.36 mmThickness
Active-matrixDrive
2.1" QCIF OLED display
Active-matrixDrive
3:4Aspect Ratio
5.5”Size
262,144 colorsNumber of Colors
5.5" OLED display
640 (H) x RGB x 480 (V)Number of pixels
1.6 mmThickness
White 150 cd/m2 (w/o pol)Brightness
60 fpsRefresh rate
262,144 colors (6-bit)Number of colors
64 ppiResolution
31.68 cm (12.5”)Size
12.5" VGA OLED display
260k colorsColor
38 ppiDensity
Active matrixAddressing
1280 x RGB x 768 dots (WXGA)Pixel
40"Size
40" WXGA OLED display
Market Size
2003 2007 2010
Mobile EntertainmentMobile Entertainment
Family EntertainmentFamily Entertainment Home Theatre
Desktop EntertainmentDesktop Entertainment
Entertainment market approach
Nick ButlerManaging Director, Epson (UK) Ltd.