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.