25.3: A 9.55-inch Flexible Top-Emission AMOLED with a-IGZO TFTs

By using a-IGZO TFT backplane fabricated on polyimide foil, and top emission OLED structure, full color 9.55-inch flexible AMOLED display is developed. The process and the experiment results are introduced. The Vth shift of a-IGZO TFTs was described before and after laser lift-off. The Vth shift of a-IGZO TFT after 5,000 times bending test at 20mm curvature radius is less than 1.0V. We also introduce laser affections to the transfer characters of a-IGZO TFTs by different energies.