amoled display by subhankar barman

1. PRESENTED BY
1. SUBHANKAR BARMAN (11000218003)

2. 1. INTRODUCTION
2. WHAT IS AMOLED
3. DESIGN OF AMOLED
4. WORKING PRINCIPAL
5. COMPARISION
6. FEATURES OF AMOLED
7. APPLICATION
8. ADVANTAGES
9. DISADVANTAGES
10. CONCLUSION

3.  Active-Matrix OLED (Active-matrix organic
light-emitting diode or AMOLED) is a display
technology.
 AMOLED is the type of OLED.
 OLED describes specie type of thin display
technology and Active Matrix refers to the
technology behind the addressing of pixels.

4. AMOLED is a display technology used in some of the most popular
mobile devices available today, including various android handsets and
tablets.
AMOLED is a new display technology that is rapidly becoming viable
for many applications.
AMOLED is a self light emitting technology composed of a thin, multi-
layered organic lm placed between an anode and cathode.
In contrast to LCD/TFT technology, AMOLED does not require a
backlight.

5.  The design of AMOLED is not so complicated as LCD.
 This been consists of only 3 layers.

6. Backplane: made of TFT (thin film transistor)
circuits that provide current to the OLEDs, thereby controlling
their brightness.
An OLED (organic light emitting diode) layer
receives the electrical response and perform light action
operation to the device.

7.  The AMOLED display consist 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 lm
transistor which control each current pixel.
 Typically two transistors are used for each
pixel-one to turn the change to the pixel on and
off, and second provide constant current.

9.  High brightness is achieved at low drive
voltages/current densities.
 Self luminescent so no requirement of
backlighting.
 Materials do not need to be crystalline, so easy
to fabricate.
 High contrast

10.  Higher contrast radio and sun readability.
 Thinner and Flexible
 Lighter weight
 Large viewing angle
 Brightness
 Less power consumption
 Faster response

11.  Thinner, lighter and more flexible.
 Plastic substrates rather than glass.
 Do not require backlight, auto generated.
 Low voltage, low power
 Brighter-good daylight visibility.
 High resolution.

12.  Low Lifetime
 Efficiency of Blue OLED.
 Susceptible of Water.

13.  Limited use caused by degradation of materials.
 AMOLED will replace current LED and LCD technologies.
 Flexibility and thinness will enable many applications.
 Super AMOLED is the future of AMOLED.

14.  "Introduction to OLED Displays Design Guide for
Active Matrix OLED (AMOLED) Displays“
"Super AMOLED Advanced.". Retrieved March 24,
2014.
Suyko, Alan. "Oleds Ready For The Mainstream.“
Electronics News (2009): 20. Associates Programs
Source Plus. Web. 9 Dec. 2011.