a moled display used in touch phones shambhunath institute of engineering and technoly

1. AMOLED DISPLAY
RAKESH KUMAR SINGH
EC 3rd YEAR
1316231039

2. ACTIVE MATRIX ORGANIC
LIGHT EMMITING DIODE
 T H I S T E C H N O L O G Y I N V E N T E D F O R
T E L E V I S I O N M O B I L E D I S P L A Y
 I T I S A V E R Y T H I N F I L M W H I C H I S C O A T E D
W I T H S E V E R A L O R G A N I C
E L E C T R O L U M I N E S C E N T C O M P O U N D
 T H E W H O L E T E C H N O L O G Y I S T O O D E A L T
W I T H P I X E L Q U A L I T Y D I S P L A Y
 I T R E Q U I R E S C O N T I N U O U S F L O W O F
E L E C T R I C I T Y T H A T I S C O N T R O L L E D B Y
T W O T F T S A N D A L S O T H E R E F R E S H R A T E
I S V E R Y H I G H
 S O M E B I G N A M E S S U C H A S S A M S U N G
, M O T O R O L A E T C . U S E T H I S T E C H N O L O G Y
INTRODUCTION

3. PHYSICAL STRUCTURE OF AN AMOLED

4. INTERNAL DIAGRAM OF AN AMOLED

5. WORKING
 Display stack cathode organic & anode layer on top
of another layer forms an circuitry
 The pixels are defined by the deposition of organic
material in continuous discreet ‘dot’ pattern each
pixel is activated directly
 A corresponding voltage is delivered to cathode &
anode stimulating the middle organic layer
 Amoled pixels turn on & off three times faster than
the speed conventional motion picture film

6. THERE ARE SEVERAL TYPES OF OLED’S
1. PASSIVE MATRIX OLED
2. ACTIVE MATIX OLED
3. TRANSPARENT OLED
4. TOP EMITTING OLED
5. FOLDABLE OLED
6. WHITE OLED

7. CAMPARISON
 Amoled provides higher refresh rates than passive
matrix often reducing the response time to less
than a millisecond & they consume less power
 The amount of power the display consumes varies
significantly depending on the color & brightness
 Amoled also has a contrast ratio that are better
than LCD

8. FUTURE DEVELOPMENT
 Manufacturers have developed in cell touch panels
,in cell sensor Amoled fabricators include au
optronics
 Samsung has marketed its version as super Amoled
 Researchers at DU Pont used computational fluid
dynamics [CFD] software to optimize coating
processes for Amoled which is competitive in cost &
performance

9. MARKETING TERMS
 SUPER AMOLED
 Super amoled is a term for an amoled display with an
integrated digitizer
 They were mainly used in Samsung galaxy nexus ,s3
etc.

10. SUPER AMOLED ADVANCE
 This term is marketed by Motorola to describe a
brighter display than super amoled series but also
higher resolution
 [qHD or 960*540] for super amoled
 [WVGA] OR 800*480 for super amoled advance
 This display type is used on the Motorola droid
RAZR and HTC ONE S

11. SUPER AMOLED PLUS
 First introduce with the Samsung s2 and Samsung
droid smartphones
 In comparison to amoled & super amoled display
they are more energy efficient & brighter
 HD SUPER AMOLED
 It is branding from Samsung for an HD resolution [
>1280*720 ]
 The first device to use this was galaxy note

12. MAGNIFIED
IMAGE OF
THE AMOLED
SCREEN ON
THE NEXUS
ONE SMART
PHONE