An electro-optical device including an electro-optical panel, a flexible base member connected to the electro-optical panel, and an electronic component mounted on the flexible base member. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The electrical charger includes a supply capacitor electrically connected to an electrical contact, the supply capacitor being charged when the electrical charger is connected to a power source.