We have developed unique printing technologies for organic TFT (OTFT) array for electronic paper. Offset-based printing technique can achieve less than 5 m channel length and electrode width with good alignment accuracy without any photoassisted process. Flexographic printing can realize extremely smooth surface of organic semiconductor (OSC), which is essential to achieve high mobility. By using these methods, characteristics of printed OTFT show remarkably high uniformity. Moreover, we have successfully driven E Ink electronic paper by fully printed OTFT array.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.