33.5: Fabrication of an All‐Screen Printed Oxide Semiconductor Thin Film Transistor Active‐Matrix Backplane

An all‐screen printed oxide semiconductor thin film transistor (TFT) active‐matrix backplane (AMBP) was investigated. We introduced a new pixel layout which reduces the leakage current between source and drain electrodes. As a result, the TFT‐AMBP with 33.8 ppi for an electrophoretic display was successfully fabricated by using screen printing for the first time. The display size and resolution are 750 mm × 550mm and 33.8 ppi, respectively.