Reliability of Active-Matrix Organic Light-Emitting-Diode Arrays With Amorphous Silicon Thin-Film Transistor Backplanes on Clear Plastic

Bahman Hekmatshoar, Alex Z. Kattamis, Kunigunde H. Cherenack, Ke Long, Jian-Zhang Chen, Sigurd Wagner, James C. Sturm, Kamala Rajan, Michael Hack
2008 IEEE Electron Device Letters  
We have fabricated active-matrix organic light emit-7 ting diode (AMOLED) test arrays on an optically clear high-8 temperature flexible plastic substrate at process temperatures as 9 high as 285 • C using amorphous silicon thin-film transistors (a-Si 10 TFTs). The substrate transparency allows for the operation of 11 AMOLED pixels as bottom-emission devices, and the improved 12 stability of the a-Si TFTs processed at higher temperatures sig-13 nificantly improves the reliability of light
more » ... ity of light emission over time. 14 Index Terms-Active matrix, active-matrix organic light-15 emitting-diode (AMOLED) display, amorphous silicon, clear 16 plastic, stability, thin-film transistor. 17
doi:10.1109/led.2007.910800 fatcat:jwvhc7o5zbee5jao6ml3rc744i