oled ppt..

1. under the guidance of
Mrs. Shobha p c
dept of ece, AIT BANGALORE
Presented by
Hemant Kumar Sharma
( 1AT08EC043)

2. What is an OLED?
OLED - Organic Light Emitting Diode
An OLED is an electronic device made by placing a
series of organic thin films between two conductors. When
electrical current is applied, a bright light is emitted.
.

3. Architecture of OLEDs

4. How OLEDs Emit Light
*The battery or power supply of the
device containing the OLED applies
a voltage across the OLED.
*An electrical current flows from the
cathode to the anode through the
organic layers.(an electrical current
is a flow of electrons)
*At the boundary between the
emissive and the conductive layers,
electrons find electron holes.
*The OLED emits light

5. Types of OLEDs
 Passive-matrix oled
 Active-matrix oled
 Transparent oled
 Top-emitting oled
 Flexible oled

6. Passive-Matrix

7. Active-Matrix

8. Transparent

9. Top-Emitting

10. Flexible

11. Applications of OLEDs
• Televisions
• Cell Phone screens
• Wrist Watch
• Computer Screens
• Digital Camera
• Portable Device displays

12. Advantages of OLEDs
 Thinner, lighter and more flexible
 Brighter
 Consume much less power
 Large field of view
 Faster response
 Less Expensive
 Better contrast ratio

13. Disadvantages of OLEDs
OLED seems to be the perfect technology for all types of displays,
but it also has some problems:
• Lifetime
• Manufacturing
• Water

14. Future Uses for OLED
 GPS system
 OLED – in future cars
 Curved OLED displays, placed on non-flat surfaces
 And many more we cannot even imagine today
Scroll Laptop
• Nokia concept OLED Laptop

15. References
• http://impnerd.com/the-history-and-future-of-oled
• http://en.wikipedia.org/wiki/Organic_light-emitting_diode
• http://www.oled-research.com/oleds/oleds-history.html
• http://www.voidspace.org.uk/technology/top_ten_phone_techs.sht
ml#keep-your-eye-on-flexible-displays-coming-soon
• http://www.pocket-
lint.com/news/news.phtml/23150/24174/samsung-say-oled-not-
ready.phtml
• http://www.cepro.com/article/study_future_bright_for_oled_lighti
ng_market/
• http://www.technologyreview.com/energy/21116/page1/
• http://optics.org/cws/article/industry/37032
• http://jalopnik.com/5154953/samsung-transparent-oled-display-
pitched-as-automotive-hud

16. Thank You