The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2014
Filed:
Dec. 23, 2009
Roy Van Dijk, Eindhoven, NL;
Bokke Johannes Feenstra, Nuenen, NL;
Anthony John Slack, Lorgues, FR;
Henricus Petronella Maria Derckx, Weert, NL;
Roy Van Dijk, Eindhoven, NL;
Bokke Johannes Feenstra, Nuenen, NL;
Anthony John Slack, Lorgues, FR;
Henricus Petronella Maria Derckx, Weert, NL;
Liquavista B.V., Eindhoven, NL;
Abstract
The present invention relates to an electrowetting system comprising an electrowetting element, a driver stage for applying a voltage to the element, and a switch connecting the electrowetting element to an output of the driver stage. The element comprises a first fluid and a second, immiscible fluid. The instantaneous position of the fluids is dependent on the voltage applied to the element, the voltage being set when the switch is closed. The voltage on the element is substantially maintained during a holding state longer than 70 ms when the switch is open.