Presentation

1. NAME-PRIYANKA

2. Introduction
1
.
2. Basic principle.
3. Oled structure.
4.Diagram working of oled
5. Advantages & Diadvantages
6. Future of OLEDs
7. Conclusion

4. An OLED is any
light emitting
diode in which
organic layers
are responsible
for light emission.

5. Electroluminescene is a process in which a
material emits light in response to electrical field
applied across it.
Election in excited state During After emission
E2
E1

6. Cathode – The cathode injects
electrons into emisssive layer.
Emissive layer – This layer is
made of polyflourine that transport
electrons from the cathode. This is
where light is made
Conducting layer – This layer is
made of polyaniline that transport
“holes” from the anode.
Anode – It is kept transparent.
Usually made up of Indium oxide
(ITO) that removes electrons
Substrate- The substrate supports
OLED.

9. The organc layers are
between strips of cathode
and anode
The intersections form the
pixels
Easy to make
Uses more power

10. Full layers of cathode
and anode
Anode overlays a thin
film transistor(TFT)
Requires less power
Higher refresh rates

11. Transparent OLEDs
have only
transparent
components
(substrate, cathode
and anode)
When turned off,
are up to 85
percent as
transparent as
their substrate.

12. • Top emitting OLEDs have a substrate that
is reflective.
• Foldable OLEDs have substrates made of
very flexible mettalic foils of plastics.

13. • White OLEDs emit white light that is brighter, more
uniform and more energy efficient.

15. Less power consumption
Lower cost in the future
Flexible Display
Thin Display
Safer for environment
Lifespan
Easily damageable
Outdoor Performances
Complex fabrication
methods

16. ADVANTAGES
•Low power consumption.
•High brightness.
•Very thin panel,of approximately 1mm.
•High contrast ratio of 10,000:1.
•wide viewing angle is 170°.
•Foldable display panel.

17. DISADVANTAGES
•Expensive.
•Susceptible to water.
•Overcome multi-million dollar LCD Market.

18. Finding a cheap way to produce
“Roll-to-Roll” manufacturing
Increasing efficiency of OLED
Increasing Lifespan of OLED

20. CONCLUSION
•Limited used caused by degradation Of materials.
•OLED Will replace current to LED and LCD.
•High cost.
•Flexibility and thinness will enable many applications.
•It is helpful for technology.

21. ANY QUERIES!?