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:
Nov. 05, 2013
Filed:
Dec. 09, 2008
Atsushi Miyazaki, Suwa, JP;
Mitsutoshi Miyasaka, Suwa, JP;
Atsushi Miyazaki, Suwa, JP;
Mitsutoshi Miyasaka, Suwa, JP;
Seiko Epson Corporation, , JP;
Abstract
A device includes: first and second substrates; an electrophoretic element between the substrates and including a dispersion medium containing electrophoretic particles; pixel electrodes on the first substrate; a common electrode opposite the pixel electrodes on the second substrate; a unit supplying an image signal having a first or second potential<the first potential to the pixel electrodes according to image data; and another unit supplying a common potential to the common electrode. The image signal is supplied in predetermined frame periods in an image signal supply period according to image data associated with the same frame image as the image data. The common potential is switched into a third potential≦the first potential and>the second potential and a fourth potential<the third potential and≧the second potential, and the switched potentials are supplied to the common electrode in the frame periods.