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. 10, 2016
Filed:
Nov. 26, 2013
Seiko Epson Corporation, Tokyo, JP;
Katsutoyo Inoue, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A drive method for an electrophoretic display device that has an electrophoretic device composed of a suspension fluid containing electrophoretic particles disposed between a common electrode and pixel electrodes is provided. No holding electrode is necessary. A driver drives the electrophoretic device by applying voltage between the common electrode and the pixel electrodes, and a controller controls the driver. The method involves redrawing the display to change the displayed image by applying to the common electrode pulse trains of different widths, each composed of a first potential and a second potential, at different times, based on certain conditions.