AU Optronics says that their 1.4" circular AMOLED display is now in mass production. The company already said before it was qualified by a Tier-1 Chinese customer - which could mean Huawei with their circular 1.4" AMOLED smartwatch. AUO also demonstrated a new 1.3" circular flexible AMOLED on a plastic substrate that is only 0.25 mm thick.
Interestingly, AUO is also developing flexible LCDs. The company demonstrated a 3.5" flexible LCD (shown below) that is based on a plastic substrate - and has a curvature of 44 mm.
AUO has been struggling with AMOLED production for years, but finally in August 2014 the company started mass production. The company currently offers four panels (from 1.63" to 5.46"). Please contact us if you want to find a supplier for these OLEDs.
AU Optronics is producing those new panels at their AFPD Gen-4.5 LTPS fab in Singapore that has been converted to AMOLED production. The company's production capacity is quite limited.