iSupply has performed a teardown of Nokia's N8, and they say that the most expensive part is the display which costs $39.25. This includes the 3.5" AMOLED and the touch overlay. The whole phone costs $187.47 to build (and it costs $549 to buy unlocked...). The AMOLED is made by Samsung of course, while the touch layer is made by Synaptics.

Back in July, iSupply estimated that the 3.7" AMOLED in the Droid Incredible costs $31.2. We're not sure if that included the touch overlay, but in any case it's strange - the price has changed considerably. Perhaps Samsung is now charging higher prices for AMOLEDs...

Kyulux - Hyperfluoresence OLED emittersKyulux - Hyperfluoresence OLED emitters