flexible displays development in taiwan - semicon...

1

Flexible Displays Development

in Taiwan

Dr. Janglin (John) ChenVice President & General Director

Display Technology Center

March 17, 2011

2Copyright 2011 ITRI

Speaker Introduction

• Name: Janglin (John) Chen 程章林

• Education– Stanford Executive Program, Graduate School of Business, Stanford University – Ph.D., Polymer Chemistry / Material, Polytechnic Institute of New York, USA– M.S., Polymer Chemistry, Polytechnic Institute of New York, USA– B.S., Chemistry, National Tsing Hua University, Taiwan

• Present Position– Vice President and General Director of Display Technology Center/ITRI (2006-present)– Chairman of TDMDA (Taiwan Flat Panel Display Materials & Devices Association, 2007-present)

• Experiences– Editor-in-Chief, Handbook of Visual Display Technology, Canopus Academic Publishing (2011)– Associate Editor, Journal of Display Technology (2010 – present)– Adjunct Professor, National Chiao-Tung University (2006-2009)– Chief Technology Officer, Kodak LCD Polarizer Films Business (2005)– Chief Technologist, Kodak Optical Display Films (2001)– Fellow, Eastman Kodak Company (2000)

• Professional Specialty– Display material, substrates, flexible displays, optical function films


•Area: 35,980 square kilometers.

•Population: 23 Millions

•GDP: US$ 418 Billions

Global Presence of Taiwan’s Industries

Semiconductor

FoundryIC PackagingIC TestingMask ROMIC designDRAMLCD Driver IC

3C Products

MotherboardNotebookCell PhoneDigital Camera

Display

TN/STN LCD TFT LCDOLED Micro-display

Networking ProductsSOHO Router Wireless LANxDSL/Cable CPE Ethernet LAN Switch

Electrical Components

LEDPCB/Flexible PCBConnector


Taiwan’s FPD industry

Taiwan FPD Production Vale and Growth Rate

-3.9%

25.8%

94.3%102.2%

-5.7%27.1%

37.0%

75.7%

30.0%2.4%

158.0%

39.7%

-22.9%

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

Million USD

-40%

-20%

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

Production Value Growth Rate

Source: IEK 2010.6

Taiwan makes up 40% global FPD production.

Production value was hard hit during the global economy storm, 2008~2009

Starts recovery in 2010


Opportunity with Flexible Electronics

Paper-like Speaker

(Consumer application)

Printed Electronics Device(Antenna, Circuit)

Flexible Sensor

(UI, Human-scale application)

Flexible Display

Portable Power

(Flexible, thin embedded application)

Flexible lighting

(Decoration application)

Leverage Taiwan’s fast integration capability to add

to ICT products the value with ‘flexible’features

Fast Integration


Flexible Display is positioned to meet future needs.

Large area

Slim & Light & Rugged Convenience

Energy Saving

E-paper

Digital Signage

Mobile Phone

Future Display Industry

PlasticSubstrate Rollable

R2R Process

PaperlessBi-stable

DIGITAL Life

GO GREEN

Rollable Display

Drives for Flexible Display


Exploding Market of e-Paper• More and more optimistic of e-Paper market predictions

• Booming success of e-book readers, other applications, such as POP/signage and mobile products

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

2007/Feb 2009/Aug.

Dis

play

Sal

es (

US

$ m

illi

ons)

Source: DisplaySearch e-Paper Display 2009 Report, 2009/09


Flexible Displays Development in Taiwan

Academia- Various resources to support academic R&D

in e-Paper and flexible display technologies, such as NTU, NTHU, NCTU, NCKU, NTUST,

Source: ITRI DTC

Advanced R&D primarily supported by MOEA, with contributions from industries. Increasing number of Taiwan companies enter the e-Reader, e-Paper business.

Industries- E Ink Holdings and AUO are global major

AMEPD suppliers

-Delta focuses on QRLPD e-paper.

- Wistron (with Polymer Vision) focus on foldable e-paper production

R&D- MOEA Project is the main R&D

funding source.

- ITRI plays a leading role in developing R2R Ch-LCD and flexible OLED.

- ITRI also collaborates with domestic industry to establish industrial supply chain.


E-Paper Technology in Taiwan

Black & White Area Color Full Color

Still VideoPaper LikeFlexible Rollable

Unbreakable

Delta Delta

Source: Delta, PVI, AUO

Particle e-paper Display-1E-ink/PVI

Particle e-paper Display-2SiPix/AUO

Particle e-paper Display-3Bridgestone/Delta


Development Status For EPD : EIH/PVI

Source: EIH (2010)

Color EPD ARD (a-Si Row Driver)Flexi-e EPD

6” 9.7”

Kindle Nook 漢王


Development Status For EPD: AUO/Sipix

Source: AUO/Sipix (2010)

Roll to Roll Manufacturing

Color EPD

Dual Mode Switching™

Flexible EPD

BENQ nReader


Development Status For QRLPD: Delta/Bridgestone

Color QRLPD

Flexible QRLPD

Source: Delta (2010)

電子書Demo


e-Reader Supply Chain

電子紙模組(Display Module)

電子書閱讀器(e-Reader)

電子紙前板(Display Panel)

聚脂薄膜(Polyester Film)

電子墨水(Electronic ink)

多媒體處理器(Processor)

電池、觸控…(Battery, Touch, etc.)

音效/電源IC(Audio/Power IC)

顯示器控制 IC(control IC)

無線通訊模組(Wireless Module)

Source: MIC/ITRI DTC, 2010


ITRI Highlights

Founded: 1973

Employees: 5,781 (as of Oct. 2010, Ph.D. 1,190)

Headquarters: Hsinchu

Major Research Field:

- Information and Communications

- Material, Chemical and Nanotechnologies

- Biomedical Technologies

- Advanced Manufacturing and Systems

- Energy and Environment

Total Patents: 14,027

Start-Ups: 162

Southern Industrial Innovation Parksince 2004

15Copyright 2011 ITRI 15

•Lab. Type: Gen. 2 Pilot Lab.

•Substrate Size: 20”(370×470 mm2)

•Clean Room: 3,124 m2

Lab. View

Screen Printer Sheet CoaterLaser Etcher

Roll to Roll Process (web: 30 cm)

Thin Film Deposition

Barrier / Encapsulation Process

Laser crystallization

TFT Process (Si, Metal oxide, Organic)

PE-CVD Ion Shower

LCD Cell Process

PI Roller Rubbing

Substrate Coating Process

Coater Oven

Display Technology Center


Flexible Display Technology Portfolio

DIGITAL Life GO GREEN

•Flexible EPD

•Flexible OLED

•Flexible Touch

•Large area R2R Ch-LCD

•Color Ch-LCD

•EWD

•Flexible substrate / Debonding

•Flexible TFT backplane


Web Coated Ch-LC Display

Substrate: PET (125μm)Patterned ITO (0.8μm)

PDCLC (8~9μm)

Absorption layer (1.5μm)

Conducting layer (20μm)

~~ ~~

•Simple Structure: Single Plastic Substrate

SEM viewgraph of PDCLC


Large Area R2R Ch-LCD

CuttingSlot Die Coating LC

Product

Forming Protecting & Absorption Layer

ITO Laser Patterning

FormingConducting

Layer

Plastic Substrate

Collaborated with Kodak to expedite

technology development •Liquid Crystal Design

•Limited Coalescence Emulsion Making

•R2R Laser Etching

•R2R Slide Coating

•R2R Screen Printing

•Standard & Rolling Driving


Ch-LCD: Large size R2R Coated

2424cm >300cm, 30dpi9cm 300300cm, 30dpi

May 2008 Oct. 2008

Dec. 2007Dec. 2007

Longer

Longer & Wider

9cm1111cm, 30dpi


Read and Write Like Paper… ,yet re-writable

Specifications:•Size : 3.5”x 4.5”•Resolution: 300dpi•Gray level:2

Photo Writing Thermal Writing

Specifications:•Size : 3.5”x 40”•Resolution: 200dpi•Gray level: > 2

Source: ITRI DTC


Soft Clock emotional appeal, advertisement

Chinese Landscape Painting 24cm 300300cm, 300dpi“Pure and Remote View of Streams and Mountains, 溪山清遠圖”, Xia Gui,

National Palace Museum

e-Signage instant product message with multi color

Novel Applications


Flexible Substrate with Polyimide (PI)

PI Solution

PI film

Substrate Holder (Glass)

Slot Die Coater

Large size coating

•Good alignment

•No residual

•High process temp.

•Transparent PI

•PI/SiO2 Hybrid

Substrate lamination

•Poor alignment

•Residual glue

•Low process temp.

Glue

Plastic Substrate

Substrate Holder (Glass)


Flexible Substrate Flexible OLED Encapsulation

PI

Substrate Debonding

Flexible Touch Flexible TFT Backplane

R

FlexUP : Flexible Universal Plane


2009.11 2010.6

Panel Size 4.1 inches

Resolution 108xRGBx240

Bending (R=5 cm) 2,500 timesDecay 90%

Panel Thickness <100 m

FlexUP for Flexible AMOLED2010.11

Panel Size 6 inches




0.1a*

88%Transparency (Touch)

1.9b*

Panel Size 6 inches





4.1” 108xRGBx240 Flexible Color AMOLED

• Using existing main-stream glass lines to fabricate flexible AM display• Integrate 200oC a-Si:H and µC-Si:H TFT with EPD and OLED on PI substrate• Demonstrate flexible AMOLED with bending 18000 times at R=5cm

6” 800x600 Flexible B/W AMEPD

Flexible Active-Matrix Displays


Multi-Mode Displays Application

AMEPD

AMOLED


Conclusion

• Leveraging the experience and infrastructure of ICT manufacturing, Taiwan is well positioned to develop flexible displays.

• Development activities are primarily propelled by the government’s seed funding. ITRI’s role is to develop, along with research universities, the fundamental technologies and, subsequently, transfer the capability to the industries in building a complete supply chain.

• Financial difficulty has driven a wave of western start-up firms to seek capital infusion, or manufacturing partners in Asia. This trend, incidentally, has given Taiwan the further advantage in gaining new important technologies in the flexible electronics area.

flexible displays development in taiwan - semicon...

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