Abstract: An electrowetting display device comprising at least one picture element with a first support plate including a first electrical element, a second electrical element and a through-connection electrically connecting the first electrical element to the second electrical element. The through-connection is arranged outside a projected display area of the at least one picture element.

Abstract: A method of providing a layer of a first fluid and a layer of a second fluid on a first area of a support plate of an electrowetting device includes providing an emulsion of dispersed first fluid and continuous second fluid, the emulsion including an amount of the second fluid for forming the layer of the second fluid.

Abstract: An electrowetting display panel includes an array substrate, a cover substrate, an electrowetting layer, and a hydrophobic pattern. The array substrate includes a display area and a peripheral area surrounding the display area and the cover substrate faces the array substrate. The electrowetting layer is disposed between the array substrate and the cover substrate and includes a polar fluid as a first fluid and a non-polar fluid as a second fluid. The hydrophobic pattern is disposed in the peripheral area.

Abstract: An electrowetting display device includes a first base substrate, a plurality of first electrodes disposed on the first base substrate and positioned to respectively correspond to positions of a plurality of pixels, a partition wall disposed on the first base substrate to partition the pixels, a second electrode disposed on the partition wall and including a plurality of openings, a second base substrate facing the first base substrate, and an electrowetting layer disposed between the first base substrate and the second base substrate, the electrowetting layer respectively being moved by voltages respectively applied to the first electrode and the second electrode.

Abstract: The present invention relates to a method for making an electrowetting display device comprising a plurality of picture elements and a first support plate and a second support plate. Each picture element comprises a space between the first support plate and the second support plate. The method comprises the steps of: providing the first support plate with an electrode structure; arranging an insulating layer on the electrode structure, the insulating layer having a thickness and a hydropobic surface facing the space; temporarily applying an electric field across the thickness of the insulating layer to reduce permanently the hydrophobicity of a predetermined area of the surface. The invention further relates to an electrowetting display device and a use of an area of reduced hydrophobicity in an electrowetting device.

Abstract: An electrowetting display device comprises a plurality of picture elements (2) having a first support plate (5) including a surface (68) and a second support plate. A space (10) of a picture element between the surface of the first support plate and the second support plate includes at least one first fluid and a second fluid immiscible with each other, the second fluid being electroconductive or polar. The first support plate includes an electrode (46) for applying an electric field in the picture element. It also includes a layer (44) arranged on a side of the electrode facing away from said space. The layer forms an electronic component (33) for applying a voltage to the electrode. The electrode comprises a height difference (86) corresponding to a thickness of the layer (44). The height difference causes an inhomogeneous electric field in the space, providing a preferred direction of motion of the first fluid on application of the electric field.

Abstract: An electrowetting display device comprises a picture element having a first support plate and a second support plate having a space therebetween having a first fluid and a second fluid immiscible with the first fluid. The first support plate comprises a display area, adjoining the space, within which the first fluid is confined and having a first surface adjoining the space. A wall protrudes from the first support plate and is formed outside the display area along a part of the perimeter of the display area. The wall has a second surface facing the display area and adjoining the space. An electrode has a first portion adjacent to the first surface and a second portion adjacent to at least a part of the second surface such that a surface of the second portion including a long side of a cross section of the second portion faces the display area.

Abstract: An electrowetting display device comprising a first support plate, a second support plate and a picture element having a space defined by the first support plate, the second support plate and walls of the first support plate. The space comprises a first fluid and a second fluid immiscible with each other, the second fluid being electroconductive or polar and the walls confining the first fluid to the space. The picture element is electrically switchable between a first state without an electric field applied and a second state with an electric field applied, in which in the first state the first fluid is spread out in the picture element and in the second state the first fluid is contracted near one of the walls. Two of the walls have a side facing the space, the sides having different angles with a plane of the first support plate.

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.

Abstract: A method of manufacturing an electrowetting display device includes forming a protection layer on a pixel electrode, forming a water-repellent layer on the protection layer, and removing the water-repellent layer from regions surrounding a display area of the pixel electrode. The water-repellent layer is formed by coating the protection layer with a hydrophilic material using a method such as slit coating. The water-repellent layer is removed using a method such as an edge bead removal method. The resulting water-repellent layer has a uniform thickness.

Abstract: In a display substrate, a method for manufacturing the display substrate and an electro-wetting display apparatus including the display substrate, the display substrate includes a base substrate, a sidewall defining a unit pixel area, a pixel electrode, a hydrophobic insulating layer and a light blocking layer. The sidewall is on the base substrate and defines the unit pixel area. The pixel electrode is in the unit pixel area. The hydrophobic insulating layer is on the sidewall and the pixel electrode. The light blocking layer is on the hydrophobic insulating layer and overlaps the sidewall.

Abstract: An electrowetting display device includes a plurality of pixels each including an array substrate, an opposite substrate, and an electrowetting layer. The array substrate includes a base substrate, a barrier wall defining a pixel area, a partition wall partitioning the pixel area into a plurality of sub-pixel areas, a hydrophobic layer disposed in the sub-pixel areas, and an electronic device controlling the electrowetting layer.

Abstract: An electrowetting system including a display device having a plurality of electrowetting elements, including a first electrowetting element and a second electrowetting element, each being configurable in a plurality of different display states; and a display controller for electrical addressing of the plurality of electrowetting elements in order to switch the plurality of electrowetting elements between different display states. The display controller is arranged to address the first electrowetting element twice subsequently, separated by a first addressing interval, and to address the second electrowetting element twice subsequently, separated by a second addressing interval, the second addressing interval being longer than the first addressing interval. The present invention further relates to a display controller, a driver stage and a method of controlling a display device.

Abstract: An electrowetting display device including a first base substrate, a second base substrate facing the first base substrate, a first electrode disposed on the first base substrate, a second electrode disposed on the second base substrate to face the first electrode, a partition wall disposed between the first and second electrodes to define a receiving area, a hydrophobic layer disposed on the first electrode, a hydrophilic layer disposed on the second electrode, and first and second fluids accommodated in the receiving area and immiscible with each other. At least one of the first fluid and the second fluid has a polarity. The hydrophilic layer allows droplets separated from a hydrophobic fluid of the first and second fluids to be merged with the hydrophobic fluid. Accordingly, a change in amount of the fluids in each pixel is prevented.

Abstract: An electrowetting display device includes a first base substrate, a second base substrate facing the first base substrate, an electrowetting layer that includes a first fluid and an electrically conducting second fluid that are immiscible with each other, black partition walls disposed on the first base substrate to partition a display area into pixel areas, and an electronic device that applies a voltage to the electrowetting layer to control the electrowetting layer. The partition walls restrict a flow of at least one of the first fluid or the second fluid.

Abstract: A method provides a layer of a first liquid on a first area of a surface using an elongate applicator, an elongate gap being formed between the applicator and the surface, the gap being filled with an elongate globule of the first liquid, and an amount of a second liquid being arranged in contact with the applicator and with the globule, the first liquid and the second liquid being immiscible and the first area having a higher wettability for the first liquid than for the second liquid. The method includes applying a relative motion between the applicator and the surface, wherein the amount of second liquid being arranged only on a trailing side of the applicator.

Abstract: The invention relates to a method of driving an electrowetting display which includes a plurality of electrowetting elements, the display comprising at least one first fluid and a second fluid immiscible with each other, each of the electrowetting elements comprising at least one surface area. In a first, relatively low voltage, driving state of an electrowetting element the second fluid tends to cover the at least one surface area, and in a second, relatively high voltage, driving state of an electrowetting element the first fluid tends to cover the at least one surface area.

Abstract: A display apparatus includes a display device and a display driving system having a data input connected to a distributor for providing signals for driving image regions. Each image region has an active display state in which it is driven with an active voltage signal including a first signal level which sets the image region to the active display state and a second signal level applied for a shorter duration than the first signal level. Operation includes (1) applying the first signal level to an image region in response to receiving data on the data input indicating that the image region is to be set to the active display state, (2) applying the second signal level to the image region after said first signal level has been applied, and (3) reapplying the first signal level before receipt of further data for said image region on the data input.

Abstract: A method of operating an electro-optic display apparatus, wherein the display apparatus includes a display device having image regions and a display driving system having a data input for selecting image regions. The data input is connected to the input of a distributor for providing signals for driving the image regions. Each image region has an active display state in which the image region is driven with an active voltage signal. The active voltage signal includes a first signal level which sets an image region to the active display state and a second signal level different from said first signal level and which is applied for a shorter duration than said first signal level.

Abstract: A method for manufacturing an electrowetting device provides a first fluid on a surface of a substrate. The method includes the steps of immersing part of the substrate in a second fluid, the second fluid being immiscible with the first fluid, and a surface of the second fluid forming a gutter along the surface of the substrate; providing a quantity of the first fluid in the gutter; and moving the gutter along the surface of the substrate, the surface of the substrate and a horizontal plane forming an angle between 100 degrees and 170 degrees. Also disclosed is an apparatus for performing the method.