OLED Devices and OLED Devices and ApplicationsApplications

By Sarkis ArabyanBy Sarkis Arabyan

2344982623449826

12/4/0812/4/08

OutlineOutline

MotivationMotivation How OLED worksHow OLED works Types of OLEDsTypes of OLEDs Advantages and ChallengesAdvantages and Challenges Current and Future ApplicationsCurrent and Future Applications

MotivationMotivation

41 in Samsung Prototype

How OLED WorksHow OLED Works CathodeCathode Emissive LayerEmissive Layer Conductive LayerConductive Layer AnodeAnode SubstrateSubstrate

How OLED WorksHow OLED Works1.1. Voltage applied across Voltage applied across

Cathode and AnodeCathode and Anode1.1. Typically 2V-10VTypically 2V-10V

2.2. Current flows from Current flows from cathode to anodecathode to anode

1.1. Electrons flow to emissive Electrons flow to emissive layerlayer

2.2. Electrons removed from Electrons removed from conductive layer leaving conductive layer leaving holesholes

3.3. Holes jump into emissive Holes jump into emissive layerlayer

3.3. Electron and hole Electron and hole combine and light emittedcombine and light emitted

How OLED WorksHow OLED Works

Different Colors Different Colors type of organic molecule type of organic molecule

in the emissive layer in the emissive layer 3 molecules used -RGB3 molecules used -RGB

Intensity/brightnessIntensity/brightness amount of currentamount of current