OLED Displays Presented by Snke Dohrn Slide 1 Your Guide to: OLED - - PowerPoint PPT Presentation

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OLED Displays Presented by Snke Dohrn Slide 1 Your Guide to: OLED - - PowerPoint PPT Presentation

Your Guide to: OLED Displays October 28, 2003 OLED Displays Presented by Snke Dohrn Slide 1 Your Guide to: OLED Displays October 28, 2003 Overview Technology - wazzup! The Edge Ahead Application Areas Timeline Event Horizon


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SLIDE 1

Your Guide to: OLED Displays

October 28, 2003 Slide 1

OLED Displays

Presented by Sönke Dohrn

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SLIDE 2

Your Guide to: OLED Displays

October 28, 2003 Slide 2

Overview

Technology - wazzup! The Edge Ahead – Application Areas Timeline – “Event Horizon” Proprietary Technology Hot Stuff – Eye Candies Questions?!

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SLIDE 3

Your Guide to: OLED Displays

October 28, 2003 Slide 3

Technology

Organic Light Emitting Diodes Light emittation based on fluorescence Carbon-based designer molecules

Polythiophene Polyfluorene Polyphenylenevinylene

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SLIDE 4

Your Guide to: OLED Displays

October 28, 2003 Slide 4

Getting them to glow...

Polymer layer sandwitched between two electrodes

Thinner than 500 nm

Electrons in benzene rings are excited by an external voltage of 3 to 5 V. Upon returning to ground state, they radiate a soft bright light Leave no trace of afterglow Illuminating power is comparable to a conventional 100 W light bulb.

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SLIDE 5

Your Guide to: OLED Displays

October 28, 2003 Slide 5

Matrix

Passive

Individual pixels get activated passively Illumination to row and column line

Brightness determined by amount of current flowing

Technically difficult to activate more than one million pixels (size of 8 inch display)

Active

Every light spot gets its own thin film transistor (TFT) Additional layer of polycrystalline silicon

Improving life spot's life span

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SLIDE 6

Your Guide to: OLED Displays

October 28, 2003 Slide 6

Manufacturing Process

Cheap and simple

Production process similar to an Ink Jet printer BUT: Production rooms need to be air-tight Latest: Organic Vapor Phase Deposition (OVPD) by UDC

Displays require hermetic sealing In use was thin class Now: flexible plastics

Whole new application possibilities

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SLIDE 7

Your Guide to: OLED Displays

October 28, 2003 Slide 7

The Edge Ahead

OLED's have a simpler structure Polymers form solid cover No more complex reorientation of light Much brighter Nearly 180° viewing angle with 90% surface covered Refresh rate (great for video) Not adversely affecting energy balance

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SLIDE 8

Your Guide to: OLED Displays

October 28, 2003 Slide 8

Application

Flexible plastics enable rollable displays Woven into clothing Walls and ceilings painted with OLED's No other technology can produce such thin and versatile light sources.

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SLIDE 9

Your Guide to: OLED Displays

October 28, 2003 Slide 9

Timeline

1985: First discovery by Ching Tang 2005: Glass flat-panels will land 2005 – 2008: Transition to plastic displays 2009: Volume shipments of notebook displays 2012: Market expected to reach $3 billion.

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SLIDE 10

Your Guide to: OLED Displays

October 28, 2003 Slide 10

High Efficiency Materials

Electrophosphorescence by United Display Corporation Use of both singlet and triplet excited state Potential of 100% efficiency

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SLIDE 11

Your Guide to: OLED Displays

October 28, 2003 Slide 11

Proprietary UDC Technology

TOLED's [@ www.universaldisplay.com/toled.php]

Emitting

Top-only Bottom-only emitting Both (transparent)

Improves daylight readibility

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SLIDE 12

Your Guide to: OLED Displays

October 28, 2003 Slide 12

Proprietary UDC Technology

SOLED's [@ www.universaldisplay.com/soled.php]

Stacking of red, green and blue subpixels Improving display resolution Enhances full-colour quality Only a third of space required

Useful for wireless web-applications

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SLIDE 13

Your Guide to: OLED Displays

October 28, 2003 Slide 13

Major Players

Kodak just branded its OLEDs NuVue Display Technology DuPont recently launched Olight brand Siemens expert on surface efficiency All other major players are licensees of Kodak or Cambridge Display Technology

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SLIDE 14

Your Guide to: OLED Displays

October 28, 2003 Slide 14

Hot Stuff

Sony 10-inch notebook diplay

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SLIDE 15

Your Guide to: OLED Displays

October 28, 2003 Slide 15

Hot Stuff

Electronic Newspaper by IBM Kodak EasyShare Other:

Mobile phones Digital cameras

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SLIDE 16

Your Guide to: OLED Displays

October 28, 2003 Slide 16

OLED's

Thank you. Your questions, please.