Patent ID: 8432355

Claim:
A drive method for a display device, the display device comprising an array of rows and columns of pixels disposed over a common substrate, wherein each pixel comprises at least a first drive electrode, a second drive electrode and a pixel electrode, and wherein the display characteristics of each pixel are altered by controlling the movement of charged particles within the pixel area under the influence of control signals applied to the first and second drive electrodes and the pixel electrode, wherein the method comprises: in a reset phase, applying control signals to all pixels such that the particles in each pixel move towards the first drive electrode; in a pixel data loading phase, applying control signals to a row of pixels via said second drive electrode or a column of pixels via said first drive electrode in turn, such that the particles in each pixel are selected either to stay in the vicinity of the first drive electrode or move towards the pixel electrode, wherein each pixel further comprises a temporary storage electrode with the first and second drive electrodes on one side and the pixel electrode on an opposite side, and wherein in this pixel data loading phase the particles in each pixel are selected either to stay in the vicinity of the first drive electrode or move to the temporary storage electrode, which is closer to the pixel electrode; in a drive phase, applying control signals to all pixels for distributing the particles which have moved towards the pixel electrode over the pixel electrode, wherein in this drive phase the pixels in the vicinity of the temporary storage electrode are moved to the pixel electrode.