Title :
Analysis of Nonaqueous Electrowetting Fluids for Displays
Author :
Chevalliot, Stéphanie ; Heikenfeld, Jason ; Clapp, Lisa ; Milarcik, April ; Vilner, Stanislav
Author_Institution :
Sch. of Energy, Environ., Biol. & Med. Eng., Cincinnati Univ., Cincinnati, OH, USA
Abstract :
Water remains the most extensively studied electrowetting fluid, but few reports exist on nonaqueous conducting solvents. Reported herein is a complete analysis of alternate fluids for electrowetting devices and displays. Emphasis is provided on real-world testing parameters, including contact angle response and immiscibility with oil, environmental range, interfacial tension, ionic content and influence on dielectric reliability, compatibility with additives such as soluble dyes or particle dispersions, and cross-diffusion of fluids or solutes. Out of 16 preselected fluids, six exhibited electrowetting performance comparable to the best aqueous:surfactant solutions. Use of the nonaqueous fluids in advanced display devices is also demonstrated.
Keywords :
conductive adhesives; contact angle; dielectric properties; display devices; solubility; surface tension; wetting; additives; compatibility; contact angle response; dielectric reliability; electrowetting device; electrowetting display; fluid cross-diffusion; immiscibility; interfacial tension; ionic content; nonaqueous conducting solvent; nonaqueous electrowetting fluid analysis; solute cross-diffusion; Dielectrics; Electrowetting; Fluids; Ions; Reflectivity; Voltage measurement; Electrowetting; fluid; reflective displays;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2011.2161265
