Abstract: A device, such as a smart-card (301), has a front surface (2) and a display area (312). The display area (312) has an activated state and an inactivated state and is incorporated in the device (301) and has a display surface (3), which is surrounded by said front surface (2). The display area (312) has a light reflecting part (325) which, in the inactivated state of the display area (312), reflects incoming light. The light (RL) reflected by the reflecting part (325) provides the display surface (3) with a desired visual appearance in relation to the visual appearance of the front surface (2) surrounding the display surface (3).

Abstract: A display device comprising a plurality of independently addressable pixels (1) comprising: a first substrate (2); a counter-electrode second substrate (4); a stack associated with said second substrate (4); an electrolyte (6) disposed between said counter-electrode (3) and said stack of electrochromic layers (5a, 5b, 5c). Said electrochromic layers (5a, 5b, 5c) are each independently addressable for switching operation; and separated from each other by layers of an electrolyte (7).

Abstract: An electrochromic display comprises electrochrome pixels (10) which comprise at least a first electrochrome material (EL1) and a second electrochrome material (EL2) between two electrodes (E1, E2). Each of the electrochrome materials (EL1, EL2) has two stable states, in one state at a first voltage across the electrochrome pixel (10) the material is transparent, in the other state at a second voltage across the electrochrome pixel (10) the material absorbs a color and thus is colored. The material changes from the one state to the other state by applying the appropriate one of the first or the second voltage. The amount of change of the absorption of the color depends on the time the appropriate voltage is applied. The first electrochrome material (EL1) changes from a transparent state to a color absorbing state for at least partly absorbing a first color when a pixel voltage (VP) across the electrochrome pixel has the first value (V1).