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:
Aug. 20, 2019
Filed:
Apr. 26, 2016
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Hiroyuki Moriwaki, Sakai, JP;
Hiromi Katoh, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
An electrophoretic element according to an embodiment of the present invention includes: a first substrate and a second substrate facing each other; and an electrophoretic layer provided between the first substrate and the second substrate, and has a plurality of pixels. In each pixel, the electrophoretic layer includes a dispersion medium, and a plurality of types of electrophoretic particles dispersed in the dispersion medium. The plurality of types of electrophoretic particles include first electrophoretic particles and second electrophoretic particles that are charged with the same polarity and have different threshold characteristics from each other. In each pixel, the electrophoretic element includes at least three electrodes to which different potentials can be applied. As seen from a layer normal direction of the electrophoretic layer, the at least three electrodes include a first electrode, a second electrode and a third electrode that are placed in this order along a certain direction that is parallel to a substrate surface of the first substrate, and the third electrode is provided in the opening region of each pixel.