Shutter mode microencapsulated electrophoretic display

G - Physics – 02 – F

Patent

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Details

G02F 1/167 (2006.01) G04G 21/04 (2010.01) B41J 3/407 (2006.01) G02B 26/02 (2006.01) G02F 1/1345 (2006.01) G09F 9/302 (2006.01) G09F 9/37 (2006.01) G02F 1/1333 (2006.01) G02F 1/1334 (2006.01) H01L 51/30 (2006.01)

Patent

CA 2329173

An electrophoretic display element includes a capsule having a first, larger surface and a second, smaller surface. The capsule contains a suspending fluid and at least one particle dispersed within said suspending fluid. Application of a first electrical field causes the particle or particles to migrate towards the first, larger surface of the capsule, causing it to take on the visual appearance of the particles. Application of a second electrical field causes the particle or particles to migrate towards the second, smaller surface, allowing the capsule to take on the visual appearance of the dispersing fluid or of a substrate or electrode positioned behind the display element. Displays may be fabricated from multiple display elements arranged on a substrate.

Elément d'affichage électrophorétique comprenant une capsule possédant une première surface plus importante et une deuxième surface plus petite. Cette capsule contient un liquide en suspension et au moins une particule dispersée à l'intérieur dudit liquide en suspension. L'application d'une premier champ électrique provoque la migration de cette particule, ou de ces particules, vers la première surface plus importante de la capsule, ce qui entraîne l'adoption de l'aspect visuel des particules par cette dernière. L'application d'un deuxième champ électrique provoque la migration de cette particule, ou de ces particules, vers la deuxième surface plus petite, ce qui entraîne l'adoption par la capsule de l'aspect visuel du liquide en dispersion ou d'un substrat ou d'une électrode placés derrière l'élément d'affichage. On peut fabriquer des affichages à partir d'éléments d'affichage multiples disposés sur un substrat.

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