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:
Oct. 16, 2007
Filed:
Jun. 10, 2003
Etsuro Kishi, Kanagawa, JP;
Etsuro Kishi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophoretic display device includes unit cells each containing i) two sets of display electrodes and a collection electrode and ii) two kinds of translucent colored electrophoretic particles having charge polarities different from each other. The unit cells are constructed so that the two display electrodes are superimposingly disposed to display the stated display color by the principle of subtractive mixture of color stimuli of the colored electrophoretic particles present on the display electrodes. Three unit cells are adjacently disposed in a same plane to form a pixel, and combinations of colors of the two kinds of translucent colored electrophoretic particles in each of the three unit cells forming the pixel are respectively one of the three primary colors and a color which provides black by subtractive mixture with one of the three primary colors.