Abstract: An electrowetting element comprising a first fluid and a second fluid immiscible with the first fluid. A support plate comprises: a wall, a surface having a display area and an electrode. The wall bounds a perimeter of the display area which widens towards a first side of the electrowetting element. The electrowetting element further comprises a color filter substantially overlapping a first sub-area of the display area; and a substantially colorless region substantially overlapping a second sub-area of the display area and widening towards the first side of the electrowetting element.

Abstract: An electrowetting element comprises a first fluid and a second fluid immiscible with the first fluid. A support plate includes a support plate surface in contact with at least one of the first or second fluids. The support plate includes an electrode for applying a voltage to control a configuration of the first and second fluids and a reflective surface. A first layer positioned between the reflective surface and the support plate surface has a first layer optical thickness substantially equal to a quarter multiple of a reference wavelength.

Abstract: The invention relates to a color display device for display a color image and a method of operating such display. The color display device is provided with a plurality of picture elements, two selectable light sources having different predetermined radiance spectra, color selection means which in combination with the selectable light sources is able to produce respective first and second primary colors on the display panel and control means arranged to select alternately one of the selectable light sources and to provide a portion of the picture elements with image information corresponding to the respective primary colors obtainable with the selected light source. The primary colors of the display device can be selected in a time sequential and space sequential way which enable a reduction of a color break-up.

Abstract: A method of displaying an image on a color display comprises receiving image data to be displayed, forming a first sub image and a second sub image from said image data, said first sub image comprising a first set of colors and said second sub image comprising a second set of colors, wherein said first set of colors and said second set of colors are disjoint sets, and wherein said first set of colors and said second set of colors comprise a metamer formed by at least a first color in said first set of colors and at least a second color in said second set of colors, and displaying said image using said first sub image and said second sub image, or a representation thereof, on a color display.

Abstract: A display comprises a plurality of first, second, third and fourth display elements, which are controllable to display first, second, third and fourth primary colors, respectively. A particular pair of said display elements, which represents a maximum color distance compared to other pairs of said display elements, is arranged such that there is a minimal spatial distance between the elements of said particular pair or that the elements of said particular pair are situated next to each other.