An object of the present invention is to provide an electro-optical device that can achieve desired optical characteristics by eliminating the possibility of transparent electrode conduction failure. An electro-optical device includes a first and a second transparent substrate, an electro-optical material provided between first and second transparent substrates, an optical structure provided on the first or second transparent substrate and having a plurality of segmented lens faces (16a), a conducting structure (2) including a connecting face (23) formed on the optical structure and formed by cutting out a portion of the optical structure or etc., and transparent electrodes formed the plurality of segmented lens faces (16a) and the conducting structure (2), respectively, wherein the transparent electrodes formed on the plurality of segmented lens faces are electrically connected together by the transparent electrode formed on the conducting structure (2).