im confused. i thought LED/OLED was the way the backlight is produced. and IPS/TFT etc is the way the picture is made? how can you compare IPS->OLED if i am correct?
LED and OLED displays are different.
You are correct in that where LED is used it refers to the backlighting. For example, an LCD display (IPS, TN,, S-PVA etc) may have either an LED backlight or a CCFL backlight.
However OLED is a different beast entirely. It functions as both the display and backlight (It doesn't need a seperate backlight). Organic LED's aren't actually seperate LED's; it's actually a film made up of thousands of them. They produce their own light and color.