We have developed surface energy controlled ink-jet printing technique with UV irradiation on novel polyimide. Predefined surface energy patterns control the flow and spreading of ink-jetted water-based electrode droplets on the polyimide film. Line width of 20 μm and space of 2 μm has been fabricated. In this study, we have successfully fabricated an active-matrix organicthin film transistor (AM-OTFT) array in which the channel length is 5 μm on the plastic substrate applying this technique. Moreover, high resolution of 160 ppi flexible electrophoretic displays consisting of this AM-OTFT backplane was demonstrated.
Takanori Tano, Hidenori Tomono, Atsushi Onodera, Keiichiroh Yutani, Akishige Murakami, Koei Suzuki, "Novel Fine Electrode Patterning Using Ink-jet Method and Its Application to All-printed Organic TFT Backplane" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP25), 2009, pp 631 - 634, https://doi.org/10.2352/ISSN.2169-4451.2009.25.1.art00062_2