新規な電極構造による流体ディスプレイの開発

摘要

本研究は，反射型ディスプレイ用の新規画素構造デバイスの開発を行う．今回はマクロモデルを製作し動作検証を行った．3枚の電極を平行に配置し，幅100μmの流路を設けて接着した．電気絶縁性液体のHFE-7100（住友3M）をマクロモデル内に封入し，上部流路間に電界を印加すると静電圧力により液体が移動した．また，色素液を選定するため，染料で着色された微粒子を分散させた色素微粒子分散液（シアン，マゼンダ，イエロー）に電界を印加し，静電圧力による影響を調べた．その結果．色素微粒子分散液は，透明な溶媒のみが上昇することがわかった．%This paper describes to develop a new structure of the reflective display. The characteristic structure of the new display was to use three electrodes which were arranged in parallel. The two outer electrodes and the center electrode were fixed with a 100m gap. HFE-7100(3M) which is a dielectric liquid was selected as a working fluid. When electric fields were applied to the one of the outer electrodes, the dielectric liquid was drawn into the channel between the electrodes by the electrostatic pressure. In addition, four pigment particle dispersion liquids (cyan, magenta and two yellows) were examined. It was found that the pigment particle dispersion liquid was separated into the colored particles and the liquid by the electrostatic pressure and the electrical polarization force.