An electronic component includes: a functional piece having a predetermined function; a bump electrode formed on the functional piece, the bump electrode including a core with elastic property and a conductive film provided on a surface of the core; and a holding unit for holding a conductive contact state between the bump electrode and a connecting electrode which is electrically conducted to a driving circuit. The electronic component is coupled to the connecting electrode, and elastic deformation of the core causes the conductive film to make conductive contact with the connecting electrode.