A display panel includes an array of interferometric modulators arranged over a transparent substrate and a transparent electrical device arranged between the array of interferometric modulators and the transparent substrate. The transparent electrical device may be electrically connected to the array of interferometric modulators or to other parts of the display panel. Examples of suitable transparent electrical devices include capacitors, resistors, inductors and filters. The use of such transparent electrical devices may provide various advantages, such as increased design flexibility, by allowing the electrical devices to be included in various parts of the array, including the viewing regions.