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Novaled intensifies development of top emitting OLEDs
The lowest ever reported operating voltage has been realised for green top emission OLED stacks of 2.5 V at 1,000 cd/m². At 95 cd/A, the current efficiency is even higher than for comparable bottom emission devices. These green devices are based on standard emitter material Ir(ppy)3.
Top emission OLED structures emitting light away from the substrate are a key feature of future OLED applications. The top emission type increases the aperture ratio above 50% for displays and paves the way for more powerful, large area active-matrix displays. When used in lighting devices, top emission OLEDs enable manufacturers to use cheap non-transparent and flexible substrates.
“Top emission OLEDs are the future of display and lighting applications. With the latest results and performances of its PIN OLED structure, Novaled has confirmed its status as being the best partner for OLED makers” says Jan Blochwitz-Nimoth, CTO of Novaled. “Our technology is currently being tested by different OLED manufacturing companies preparing their entry into mass production.”
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