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:
Jan. 03, 2012
Filed:
Feb. 06, 2009
Hidetoshi Saito, Suwa, JP;
Hidetoshi Saito, Suwa, JP;
Seiko Epson Corporation, , JP;
Abstract
In an electrophoretic device including a display including pixels with electrophoretic particles between pixel and common electrodes, a pixel-switching element, a memory holding an image signal from the pixel-switching element, and a switch connecting one of first and second control lines to the pixel electrode according to a signal output according to the image signal from the memory, a driving circuit includes a holding voltage unit supplying a holding voltage holding the image signal in the memory, a pixel potential unit supplying a first pixel potential to the first control line and a different second pixel potential to the second control line, a common potential unit supplying a common potential to the common electrode, and a control unit controlling the holding potential unit, the common potential unit, and the pixel potential unit to stop the holding potential after the first and second pixel potentials and common potential are stopped.