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:
Aug. 28, 2006
Hideyuki Kawai, Fujimi, JP;
Hideyuki Kawai, Fujimi, JP;
Seiko Epson Corporation, , JP;
Abstract
An electrophoresis device includes a first substrate having a plurality of pixel electrodes formed on a surface thereof, a second substrate having a common electrode formed on a surface thereof and disposed to face the pixel electrodes, and an electrophoretic layer disposed between the pixel electrodes and the common electrode. The electrophoresis device makes electrophoretic particles migrate by keeping the potential of each pixel electrode constant and changing a voltage to be applied to the common electrode. The device also includes a voltage control means which supplies a voltage whose minimum voltage is not less than Vand whose maximum voltage are not more than Vto the common electrode, in a case where a potential which appears in each pixel electrode when a minimum voltage Vis supplied to a voltage supply means to each pixel electrode is set to Vand a potential which appears in each pixel electrode when a maximum voltage Vis supplied to the voltage supply means is set to V