Document Type
Patent
Publication Date
October 2014
Patent Number
8858772
CPC
G02B 26/005(20130101),
Abstract
A novel electrowetting system for the smooth continuous movement of a droplet across a single circuit using a continuous applied voltage regardless of polarity. The actuation of the droplet is achieved by introducing a diode into the idealized electrical circuit of the electrowetting system. The diode is in parallel with a capacitor (dielectric) and effectively shorts the droplet on the side of a lower potential electrode so that the entire voltage drop is across the dielectric over the opposite electrode. This creates an energy imbalance that moves the droplet towards the higher potential. If the voltage polarity is reversed, the direction of actuation will reverse as well.
Application Number
13/525,806
Recommended Citation
Crane, Nathan B.; Mishra, Pradeep; and Volinsky, Alex, "Bidirectional electrowetting actuation with voltage polarity dependence" (2014). USF Patents. 163.
https://digitalcommons.usf.edu/usf_patents/163
Assignees
University of South Florida
Filing Date
06/18/2012
Primary/U.S. Class
204/600
