I have just learned from AUO that they have resumed their OLED operation in January 2008. As you may recall, in 2007 AUO stopped their OLED production, and relocated all OLED engineers to their LCD business. AUO has done a lot of research into AMOLEDs in the past years, and the first AMOLED phone (the BenQ S88) used their 2" AMOLED display.

AUO used UDC's PHOLED materials, and I understand that they are likely to still use PHOLEDs in the new OLEDs.

Merck - Advancing Display, Advancing LifeMerck - Advancing Display, Advancing Life