AMOLED DISPLAY

RAKESH KUMAR SINGHEC 3rd YEAR 1316231039

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 AY

I T I S A V E RY T H I N F I L M W H I C H I S C O AT 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 LU 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 LT W I T H P I X E L Q UA L I T Y D I S P L AY

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 AT 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 AT E I S V E RY 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

PHYSICAL STRUCTURE OF AN AMOLED

INTERNAL DIAGRAM OF AN AMOLED

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

THERE ARE SEVERAL TYPES OF OLED’S

1. PASSIVE MATRIX OLED2. ACTIVE MATIX OLED3. TRANSPARENT OLED4. TOP EMITTING OLED5. FOLDABLE OLED6. WHITE OLED

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

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

MARKETING TERMS

SUPER AMOLED Super amoled is a term for an amoled display

with an integrated digitizerThey were mainly used in Samsung galaxy

nexus ,s3 etc.

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

advanceThis display type is used on the Motorola

droid RAZR and HTC ONE S

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

MAGNIFIED IMAGE OF

THE AMOLED

SCREEN ON THE NEXUS ONE SMART

PHONE

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