. "e in the horizontal deflection section shown in FIGS. 8A and 8B; FIG. 12 is a plan view for describing a positional relationship between the horizontal deflection section and a vertical deflection section in the three-dimensional display shown in FIG. 1; FIG. 13 is a conceptual diagram for describing the operation when a stereoscopic image is observed on the three-dimensional display shown in FIG." . . .