Pioneer developed new flexible PMOLED panels. Those monochrome panels are bendable (curvature radius : 20mm) and very slim (0.15 mm thick) and light (0.04 g/cm2). Those flexible OLEDs use an ultra-thin glass substrate:
Pioneer wouldn't reveal any more details (such as when they expect to start producing such panels). But if you look at the text on the display, it seems that Pioneer expects to finish development by next year.