Flexible AMOLED display driven by amorphous InGaZnO TFTs

Threshold voltage shifts of amorphous In-Ga-Zn-Oxide (a-InGaZnO) TFTs on plastic substrates against bias-temperature stress were reduced below 0.03 V, equivalent to those on glass substrates. We have developed 10.2-inch WUXGA (1920×1200) flexible bottom-emission active-matrix organic light-emitting diode (AMOLED) driven by a-InGaZnO TFTs fabricated on a transparent polyimide film. We demonstrated a prototype flexible-display system integrated with a bend-input function that enables users to interact with the display by flexing it.