AMOLED (Active-Matrix Organic Light-Emitting Diode) is a display technology that offers efficient power consumption and faster refresh rates, making it suitable for applications like TVs and monitors. The technology relies on a matrix of OLED pixels and a thin film transistor array to control light emission and image quality. Future prospects include curved, transparent, and wearable AMOLED displays, along with potential challenges such as material degradation and limited lifespan.

1. AMOLED DISPLAY
Presented by:
Shubham Mundada

2. CONTENT
 Introduction
 History
 Principle
 AMOLED Components
 Working
 Manufacturing of AMOLED
 Comparison
 Applications and future prospects
 Advantages
 Disadvantages
 Conclusion

3. INTRODUCTION
 Active-Matrix OLED (Active-matrix organic light-
emitting diode or AMOLED) is a display technology .
 AMOLED is type of OLED .
 OLED describes specific type of thin display
technology and Active-Matrix refers to the technology
behind the addressing of pixels.
 An OLED is any LED whose emissive
electroluminescent layer comprises a film of organic
compounds
 The layer usually contains a polymer substance that
allows suitable organic compounds to be deposited.

4.  They are deposited in rows and columns onto a flat carrier
by a simple printing process.
 The resulting matrix of pixels can emit light of different
colors.
 AMOLEDs have full layers of cathode, organic molecules
and anode, but the anode layer overlays a thin film
transistor (TFT) array that forms a matrix. The TFT array itself is
the circuitry that determines which pixels get turned on to
form an image.
 AMOLEDs consume less power than PMOLEDs because the
TFT array requires less power than external circuitry, so they
are efficient for large displays. AMOLEDs also have faster
refresh rates suitable for video. The best uses for AMOLEDs
are computer monitors, large-screen TVs and electronic
signs or billboards.

5. HISTORY
 The first EL from a an organic molecule, anthracene,
was reported by Pope and coworkers in 1963 .
 The active matrix technology is invented by Bernard
Lechner in 1975

6. PRINCIPLE
 Electroluminescence (EL) is an optical
phenomenon and electrical phenomenon in which
a material emits light in response to an electric
current passed through it, or to a strong electric
field

7. AMOLED COMPONENT :
Cathode
Emissive layer
Conducting layer
Anode
Substrate
TFT

8. Working:

9.  The AMOLED display consists of a matrix of OLED pixels, each
having an anode, cathode and a layer of organic material
between them.
 These pixels are activated by a thin film transistor array which
controls the current to each pixel, enabling it to be activated
and when current flows through it, light is generated.
 Typically two transistors are used for each pixel - one to
turn the charge to the pixel on and off, and a second to
provide the constant current.
 This eliminates the need for the very high currents
required for passive matrix OLED operation

10. Manufacturing Of
AMOLED
 The biggest part of manufacturing AMOLEDs is
applying the organic layers to the substrate. This can
be done in three ways:
 Vacuum deposition or vacuum thermal evaporation
(VTE)
 Organic vapor phase deposition (OVPD)
 Inkjet printing

11. AMOLED LCD PLASMA
• Potentially the lowest cost. • Medium cost. • Highest cost
• Consumes lowest power • Lower Power consumption
than plasma
• Highest power
consumption
• Self emissive. • Requires backlight. • Requires backlight.
• Displays wider color range. • Color range not good. • Displays a very deep
black.
• No screen burn potential • No screen burn potential • Screen burn potential
• Shorter overall lifetime • Backlight bulb typically
requires replace at around
30 k hours
• Half life ~60k hours
Comparison:

12. APPLICATIONS
 Cellular/mobile phones
 MP3 players
 Digital camera
 AMOLED TV
 TABLET PC

13. Some of the Present Gadgets

14. FUTURE PROSPECTS
 Curved AMOLED
displays
 Wearable AMOLEDs
 Transparent
AMOLEDs embedded
in windows
 AMOLEDs in car
windshields
 Realizing Concept
models of various
mobile devices

15. ADVANTAGES
 Thinner ,lighter and flexible

16.  Higher contrast ratio and sun readability
 Large viewing angle
 Brightness
 Less Power consumption
 Faster response

17. DISADVANTAGES
•Lifetime
•Efficiency of Blue OLED
•Susceptible to Water

18. CONCLUSION
 Limited use caused by degradation of
materials.
 AMOLED will replace current LED and
LCD technologies
 Flexibility and thinness will enable many
applications

19. THANK YOU