A Flexible display driven by oxide-thin-film transistors and using inverted organic light-emitting diodes

Abstract

An 8-inch oxide-TFT-driven flexible display using inverted organic light-emitting diodes (iOLEDs) with an inverted device structure was demonstrated. We employed iOLEDs with an air-stable electron injection layer and longer lifetime. An oxide-TFT backplane having good electrical performances (mobility ~7 cm2/Vs, on/off ratio >107) was also fabricated on a plastic substrate at low temperature (i.e., below 160 °C). The fabricated flexible iOLED display showed clear and stable color moving images and produced uniform RGB emissions from each pixel, even when it was bent.