A display device configured to display a stereoscopic image composed of an image for right eye and an image for left eye, the display device comprising: an image display portion having a plurality of stereoscopic pixels each composed of a pixel for right eye and a pixel for left eye, the pixel for right eye and the pixel for left eye each including at least one sub pixel for each of red, blue, and green, the plurality of stereoscopic pixels being arranged in a horizontal direction and in a vertical direction; a display mode setting portion (50, 60) configured to set one of at least a vertical display mode and a horizontal display mode; a parallax barrier forming portion (30, 50) configured to form a parallax barrier in accordance with the setting by the display mode setting portion; and an image control portion configured to control the image display portion in accordance with the setting by the display mode setting portion, when the vertical display mode is set, not allow the sub pixels at first intervals in the horizontal direction to emit color lights, but allow the sub pixels at second intervals in the vertical direction to emit color lights, and when the horizontal display mode is set, not allow the sub pixels at the second intervals in the vertical direction to emit color lights, but allow the sub pixels at the first intervals in the horizontal direction to emit color lights, the display device being characterized in that in the stereoscopic pixel, in each of a column and a row that are respectively adjacent to each of a column and a row in which only sub pixels for a color for which control for allowing or not allowing color light emission is performed by the image control portion are located, at least one sub pixel for each of red, blue, and green is located, and at least one vacant region in which no sub pixel is located is present adjacent to each sub pixel for a color for which control for selectively allowing or not allowing color light emission is performed by the image control portion. an image display portion having a plurality of stereoscopic pixels each composed of a pixel for right eye and a pixel for left eye, the pixel for right eye and the pixel for left eye each including at least one sub pixel for each of red, blue, and green, the plurality of stereoscopic pixels being arranged in a horizontal direction and in a vertical direction; a display mode setting portion (50, 60) configured to set one of at least a vertical display mode and a horizontal display mode; a parallax barrier forming portion (30, 50) configured to form a parallax barrier in accordance with the setting by the display mode setting portion; and an image control portion configured to control the image display portion in accordance with the setting by the display mode setting portion, when the vertical display mode is set, not allow the sub pixels at first intervals in the horizontal direction to emit color lights, but allow the sub pixels at second intervals in the vertical direction to emit color lights, and when the horizontal display mode is set, not allow the sub pixels at the second intervals in the vertical direction to emit color lights, but allow the sub pixels at the first intervals in the horizontal direction to emit color lights, control the image display portion in accordance with the setting by the display mode setting portion, when the vertical display mode is set, not allow the sub pixels at first intervals in the horizontal direction to emit color lights, but allow the sub pixels at second intervals in the vertical direction to emit color lights, and when the horizontal display mode is set, not allow the sub pixels at the second intervals in the vertical direction to emit color lights, but allow the sub pixels at the first intervals in the horizontal direction to emit color lights, the display device being characterized in that in the stereoscopic pixel, in each of a column and a row that are respectively adjacent to each of a column and a row in which only sub pixels for a color for which control for allowing or not allowing color light emission is performed by the image control portion are located, at least one sub pixel for each of red, blue, and green is located, and at least one vacant region in which no sub pixel is located is present adjacent to each sub pixel for a color for which control for selectively allowing or not allowing color light emission is performed by the image control portion.