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. 08, 2012
Filed:
Aug. 28, 2007
Thomas H. Whitesides, Somerville, MA (US);
Joanna F. AU, Framingham, MA (US);
Karl R. Amundson, Cambridge, MA (US);
Robert W. Zehner, Belmont, MA (US);
Ara N. Knaian, Newton, MA (US);
Benjamin Zion, State College, PA (US);
Thomas H. Whitesides, Somerville, MA (US);
Joanna F. Au, Framingham, MA (US);
Karl R. Amundson, Cambridge, MA (US);
Robert W. Zehner, Belmont, MA (US);
Ara N. Knaian, Newton, MA (US);
Benjamin Zion, State College, PA (US);
E Ink Corporation, Cambridge, MA (US);
Abstract
A pixel of an electrophoretic display is driven from one extreme optical state to a second optical state different from the one extreme optical state by applying to the pixel a first drive pulse of one polarity; and thereafter applying to the pixel a second drive pulse of the opposite polarity, the second drive pulse being effective to drive the pixel to the second optical state.