Patent ID: 8519944
Filing Date: 2013-08-27
Classification: G02F,G09G

Abstract:
1. A display comprising: a first substrate, including: a second substrate, separated from the first substrate by a known distance and forming a cavity between said first and said second substrate, a plurality of second walls extending from said second substrate, said plurality of second walls having a lower edge substantially parallel to said second substrate, said plurality of second walls disposed substantially opposite from corresponding ones of said plurality of first walls, said plurality of first walls having a height less than said cavity,—wherein a gap is formed—between the top surface of the first walls and the lower edge of a corresponding one of the second walls, and a thickness of the plurality of first walls is proportional to the known distance between the first substrate and the second substrate, said thickness of said first walls being sized to decrease unusable display area; a substantially clear, substantially particle free, suspension fluid contained within said cavity, said suspension fluid being substantially uniformly distributed throughout said cavity by being in fluid communication with each of said cells; a first plurality of electrically charged particles and a second plurality of electrically charged particles provided within each of said plurality of cells, said first plurality of electrically charged particles having a different charge than said second plurality of electrically charged particles, said gap being sized to contain said first set and second set of electrically charged particles within corresponding cells; and means for selectively applying a voltage to each of said plurality of electrically conductive elements.