Under this report, the importance of OLEDs and their advantages over LEDs and how different types of OLEDs play important role in future technology

1. Organic Light-Emitting Diodes
By: Grant Warfield

2. What is an OLED?
● 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.
● A device that is 100 to 500 nanometers thick or
about 200 times smaller than a human hair.

3. The OLED Structure

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
● Active-matrix
● Transparent
● Top-emitting
● Flexible
● White

6. Passive-Matrix

7. Active-Matrix

8. Transparent

9. Top-Emitting

10. Flexible

11. White

12. Advantages
● Thinner, lighter and more flexible
● Brighter
● Consume much less power
● Easier to produce and make into larger sizes
● Large field of view

13. Disadvantages
● Lifetime
● Manufacturing
● Water

14. Current OLEDs

15. Future of OLEDs?