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OLED-based backlights for autostereoscopic 3D displays

Fraunhofer IPMS has achieved a major milestone in OLED-based backlights for autostereoscopic 3D displays.

For the first time a 3.5" 3D QVGA display will be presented, that is based on a highly-efficient, patterned and controllable OLED backlight. The technology demonstrator presented at PEA 2008 combines several major achievements:

- Large-area display OLED backlight (about 80 x 60 mm, supplying a 3.5" LCD modulator)

- Highly-efficient and fast-response OLED top-emitter (monochrome orange, PIN-OLED™ technology)

- 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)

This proprietary technology is targeted on providing an approach to electronically adapt the display backlight angular emission characteristics. In combination with specificly embedded microoptics the stereoscopic eye-boxes according to user's position in front of the screen can be moved by electronic backlight control. Further work is directed to full-color, multi-view and multi-user application.

Ines Schedwill | alfa
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