Fraunhofer IPMS, is working on innovative autostereoscopic 3D displays with OLEDs as patterned backlight. At SID DisplayWeek 2009, an improved version of a 3,5 inch sized 3D QVGA display is shown that combines advantages of that technology like:

Large-area display OLED backlight (about 80 x 60 mm, supplying a 3.5 inch LCD modulator)
Highly-efficient and fast-response OLED top-emitter
Striped patterned backlight (stripe width 28 µm)
Individual electronic driving for adaptive backlight control (double-layer wiring integrated on the substrate)
3D mobile display application demonstrated (PDA-like, microoptics and front modulator integrated)
with new features, which include

both monochrome green and full color displays, both in PIN-OLED™ technology
Time Multiplex operation mode, i.e. preserving the full geometric resolution of the display
Multi-User capability (3 users at the same time) by development of a special optics.
Source:Fraunhofer-IPMS