Electrophoretic Display Device

摘要

A display device ( 1 ) comprises electrophoretic particles ( 8,9 ) and an image screen comprising an array of display elements comprising a pixel electrode and a second electrode. The display device comprises control means ( 15 ) for supplying drive signals to the electrodes. In operation the image is displayed in subsequent frames. The control means comprise a row driver ( 16 ) and a column driver ( 10 ). Preset signals ( 53 ) are in operation supplied to the display elements whereby the preset signals applied to display elements alter between subsequent frames. The control means are arranged to change preset-signals between frames in a column-to-column scheme. The means for supplying preset signals are arranged such that for the preset signals to at least a part of the image screen comprising a group of columns and rows only one set of data is transferred for the preset signals for said group.