A method of manufacturing a reflective display device comprises depositing an electro-optical ink on a substrate, the electro-optical ink comprising a plurality of microencapsulated electro-optical fluid shells dispersed in a polymer pre-cursor. The electro-optical ink is cured to provide an electro-optical layer in which the shells are maintained in a polymer matrix having at least two-phases. At least one of the phases in the polymer matrix has a refractive index differing from the shells. At least one electrode is provided in contact with the electro-optical layer to, in use, control the state of the electro-optical layer.