Abstract
Digital Paper was recently proposed as a new medium that offers the advantages of both softcopy and hardcopy. This study examines the possibility of realizing Digital Paper by using an ion projection head to drive a liquid crystal medium. A guest-host type liquid crystal sheet medium is prepared. An ion projection head with charge dot density of 300 dpi is used for surface charging. It is confirmed that white images could be repeatedly formed on a black background by ion projection followed by image erasure (by heating) to the black background. It is demonstrated that this sheet medium has ideal characteristics; it reproduces the viewing angle and flexibility of paper. This method is thus promising as a candidate for realizing Digital Paper.
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