OLED (Organic Light Emitting Diode) is an emerging display technology that uses electroluminescence from organic compounds to emit light. OLEDs offer brighter, thinner, and more flexible displays compared to traditional LCD screens. They consist of a series of thin organic layers sandwiched between an anode and cathode, which emit light when electric current is applied. While offering benefits like high contrast and low power consumption, OLEDs currently have drawbacks such as higher costs and limited lifespan.

2. BY
B.JEETHANDIRAN

3. (OLED)
Organic Light
Emitting Diode

4. WHAT IS AN OLED?
Emerging technology for display in
devices.
Main principle behind OLED
technology is electroluminescence.
Offers brighter, thinner, high contrast,
flexible displays.
They are made from carbon and
hydrogen.

5. WHAT IS AN ELECTROLUMINESCENCE?
Electroluminescence(EL) is an optical
phenomenon in which a material emits light
in response to the passage of an electric or to a
strong electric field.
Electroluminescence(EL)is non-thermal
generation of light.

6. HISTORY OF OLED?
The first OLED device was developed by Eastman
Kodak in 1987.
In 1996 pioneer produces the world’s first
commercial(PMOLED).
In 200, many companies like Motorola, LG, etc.
developed various displays.
In 2001, Sony developed world’s largest full Colour
OLED.

7. HOW DOES OLED WORKS?
OLED’s operate on the attraction
between positively and negatively charged
particles.
Energy passing through cathode and
anode layer stimulates organic material
cause it to emit the light.

8. LAYERS
1) Plastic Substrate,
2) Anode(+),
3) Conductive layer,
4) Emissive layer &
5) cathode(-).

9. 1)Passive-matrix OLED,
2)Active-matrix OLED,
3)Transparent OLED,
4)Top-emitting OLED,
5)Flexible/Foldable OLED,
6)White OLED &
7)Phosphorescent OLED.

10. High contrast,
Wide viewing angle,
Low power consumption,
Low thickness(variety design).

11. Expensive,
Lifespan,
Water damage &
Colour balance issues.

12. APPLICATIONS OF OLED
TVs,
Cell Phone Screens,
Computer screens,
Keyboard( Optimus Maximum),
lights &
Portable Device display.

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