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. 25, 2004
Filed:
Jun. 21, 2002
Tsutomu Ikeda, Tokyo, JP;
Yoshinori Uno, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophoretic display device includes first and second substrates arranged in opposed relation to each other with a space, an insulating liquid arranged in the space and a plurality of colored and charged electrophoretic particles dispersed in the insulating liquid. On the basis of arrangement of a stage along the second substrate in the space between the substrates, a first surface opposing a thicker portion of the insulating liquid, a second surface opposing a thinner portion of the insulating liquid and a side wall of the stage, which connects the first surface to the second surface, are formed on the second substrate. A first electrode is arranged along the first surface, and a second electrode is arranged along the second surface. The display device has a third electrode arranged along at least a part of the side wall of the stage and forming an electrode face continuous with the first electrode.