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:
May. 20, 2014
Filed:
Aug. 06, 2012
Kenneth A. Dean, Phoenix, AZ (US);
Jason C. Heikenfeld, Cincinnati, OH (US);
Kenneth A. Dean, Phoenix, AZ (US);
Jason C. Heikenfeld, Cincinnati, OH (US);
Gamma Dynamics LLC, Cincinnati, NY (US);
Abstract
A device, an electrode configuration and a sequence for activating those electrodes for the purpose of switching device states quickly with minimum flicker during bi-stable image reset. The disclosure addresses the constraints of electrofluidic technology: 1) the polar fluid can be attracted to a position with voltage, but it cannot be repelled, and 2) because the polar fluid translates, changing its area against an electrode and thereby changing the capacitance, the time to discharge the capacitor formed by area contact with a polar fluid is significantly smaller than the time to charge a capacitor, which requires translation of the fluid. Setting the grayscale is based on discharging, not charging, when possible. In addition, the use of pixel-level partial reset states reduces the appearance of flicker further by minimizing the change in pixel state during data write/update.