“Digital Paper” was recently proposed as a new medium that offers the advantages of both softcopy and hardcopy. Electrophoretic displays are a promising approach to the digital paper medium. This study aims at to confirm their ability as digital paper. We prepared a microcapsule electrophoretic display as the medium and an ion projection head as the driver; clear white images on a blue background were achieved. As digital paper, this medium offers the significant benefits of non-contact writing by ion projection, ease of manufacturing, and physical flexibility.
Kazuya Ogura, Makoto Omodani, Yasusuke Takahashi, Hideyuki Kawai, "Microcapsule Electrophoretic Display Method Using Ion Projection Head" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP15), 1999, pp 266 - 268, https://doi.org/10.2352/ISSN.2169-4451.1999.15.1.art00069_1