Effect of Electrode Space on Optical Property in Three-Electrode Type E-paper Display

Title & Authors
Effect of Electrode Space on Optical Property in Three-Electrode Type E-paper Display
Lee, Sang-il; Hong, Youn-Chan; Kim, Young-cho;

Abstract
A three-electrode type reflective display (electronic paper) is designed to apply an independent electric field to each three electrodes of the cell including two electric-type of particles and electrically neutral color fluid, so single color realization is possible. In particular, the movement of particles and optical properties are decided by the electric field between two electrodes on the lower substrate. So, the effect of electric field by the distance between two electrodes on the lower substrate is studied with electrode spacing with $\small{10{\mu}m}$, $\small{15{\mu}m}$, $\small{20{\mu}m}$, and $\small{25{\mu}m}$. By our experimentation, the driving voltage induces more reliable movement of charged particles and the optical properties as compared with the threshold voltage. We ascertain the single color realization and non-inverted particle separation is possible. So the more desirable optical properties are observed in case of the short electrode like $\small{10{\mu}m}$.
Keywords
Three-electrode type;Single color;Pixelation;Electronic ink;Electrophoresis;
Language
Korean
Cited by
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