A novel approach -based on electrical transient currents- is used to characterise the conductance process of a charging agent. Charging agents provide the charge on pigments used in electrophoretic displays, but also introduce ions in the solution. This is investigated by accurate transient current measurements in micro-cells. Satisfactory quantitative agreement is achieved with a continuum model of migration and diffusion. And, physical values for concentration, charge and mobility of the ions are obtained.
|Number of pages||4|
|Publication status||Published - 1 Dec 2005|
|Event||IDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005 - Takamatsu, Japan|
Duration: 6 Dec 2005 → 9 Dec 2005
|Conference||IDW/AD'05 - 12th International Display Workshops in Conjunction with Asia Display 2005|
|Period||6/12/05 → 9/12/05|