There's an interesting article discussing a team of engineers in Samsung which developed the Super AMOLED HD displays. As was suggested before, Samsung is still using a Shadow Mask (or FMM) to fabricate Super AMOLED HD displays. Using new materials and a new manufacturing process they managed to develop such a fine mask that enabled over 300ppi - a thing that was considered impossible by several companies.

Production of AMOLED panels at Samsung (photo)

So Samsung didn't move to LITI production yet, and they are still using FMM. Samsung also developed a new technique called Small Mask Scanning (or SMS) will enables them to scale up AMOLED production to 8-Gen plants.