5B are a top view and a cross sectional diagram, respectively, of an EL display device of the present invention; FIG. 16 is a cross sectional diagram of a pixel section of the EL display device of the present invention; FIGS. 17A and 17B are a top view and a circuit diagram, respectively, of the pixel section of the EL display device of the present invention; FIG. 18 is a cross sectional diagram o