* Lifetime - While red and green OLED films have longer lifetimes (46,000 to 230,000 hours), blue organics currently have much shorter lifetimes (up to around 14,000 hours.
* Water - Water can easily damage OLEDs.
==Concept Table==
{|border="2" cellspacing="0" cellpadding="4" width="55%"
|bgcolor = "#B8CCE4"|'''Top emission'''
|bgcolor = "#B8CCE4"|'''Organic Light Emitting Diode'''
|-
|Top emitting
|OLED
|-
|Top emissive
|polymer LED
|-
|
|light emitting polymer diode
|-
|
|organic LED
|-
|
|organic electroluminescent diode
|-
|
|FOLED
|-
|
|SM-OLED
|-
|
|small molecule OLED
|-
|
|AMOLED
|-
|
|PMOLED
|-
|}
==Landscape Analysis Of Top-Emmission OLED==