Abstract: A display device comprising picture elements, which are constituted by electrowetting elements having at least one first fluid and a second fluid immiscible with each other within a space between a first support plate and a second support plate, the second fluid being electro-conductive or polar. The first fluid in each element is at the side of the first support plate confined by element walls, and the second fluid is shared by a plurality of picture elements, characterised by a preventer for preventing first fluid portions from being expelled from its confinement when forces other than electrowetting forces are exerted on this fluid.

Abstract: An electrowetting element comprising a first fluid and a second fluid which are immiscible with each other and are switchable between a first configuration and a second configuration by changing a voltage applied to at least one of the first and second fluids, wherein less than or equal to 35 wt % of the second fluid is water and a balancing wt % of the second fluid comprises at least one non-aqueous component.

Abstract: A display driving system for an electrowetting display device having at least one display element, the display driving system comprising a driver stage for the display element, the driver stage providing a display voltage to be applied to the display element in response to a data signal representing an image to be displayed, the driver stage including a variable source providing a variable voltage in dependence on the data signal, the display driving system including an offset source providing an offset voltage, the display voltage being the sum of the offset voltage and the variable voltage.

Abstract: A layer of a first fluid and a layer of a second fluid are provided on a first area of a support plate of an electrowetting device, the first fluid and the second fluid being immiscible and the first area having a higher wettability for the first fluid than for the second fluid. The method includes providing an emulsion of dispersed first fluid and continuous second fluid; bringing the first area and the emulsion in contact; the dispersed first fluid coalescing to form the layer of the first fluid on the first area. Also described are an emulsion for manufacturing an electrowetting device, a method for manufacturing an emulsion, a device, a non-ionic surfactant and a use of a non-ionic surfactant.