It is about organic light emitting diodes its history,features,advantages,disadvantages,applications, future scope,conclusion

1. OLED
(Organic Light Emitting
Diode)
Anusha Chilukuri
Electronics and Communication
Engineering
Section-A4
Roll no.1210415410

2. OLED
(Organic Light Emitting Diode)
An OLED is any light emitting diode (LED)
which emissive electroluminescent layer
is composed of a film of organic
compounds.

3. Content
 What is an OLED?
 History
 Features
 Structure of OLED(Figure)
 Working Principle
 Types of OLED
 OLED Advantages
 OLED Disadvantages
 Applications
 Future uses
 Conclusion

4. History
 First developed in the early 1950s in France
 In 1990,electroluminescence in polymers
was discovered.
 In 2000,many companies like motorola,LG
developed various displays.
 In 2001,Sony developed world’s largest
fullcolor OLED.

5. Features
 Flexibility.
 Emissive Technology.
 Light weight and thin.
 Low power consumption.
 High contrast, brighter and perfect
display from all angles

6. Structure of OLED

7. Working Principle

8. Types of OLED
Six types of OLEDs
 Passive matrix OLED(PMOLED).
 Active matrix OLED(AMOLED).
 Transparent OLED(TOLED).
 Top emitting OLED.
 Flexible OLED(FOLED).
 White OLED(WOLED).

9. OLED Advantages
 Thinner, lighter and more flexible.
 Do not require backlighting like LCDs.
 Wider viewing angles;up to 170
degrees.
 Faster response time.
 Less expensive than LCD due to
lesser components.
 High Resolution,<5μm pixel size.
 High Refresh rate.

10. OLED Disadvantages
 Expensive.
 Lifespan.
 Water damage.
 Colour balance issues .

11. Applications
 OLED TV
 Mobile Phones with OLED screens.
 Keyboards(optimus maximus).
 Portable device displays.
 Computer screens.

12. Future uses for OLED
 Data glass
 Rolltop laptop
 Nokia concept oled laptop
 Transparent Car Navigation System
on windshield
 Lighting
 Roll to Roll manufacturing

13. Conclusion
 OLED have drastically increased
image quality and efficiency of power
consumption .If OLED displays are
able to overcome the hurdles such as
lifetime and cost they will certainly be
the future of the large display industry.