Display device

A display device functioning as a see-through display, the device comprising:

• a first display panel configured to control a polarization direction of light on the basis of externally provided first image information, thereby displaying a first image or becoming transparent to allow ambient light incident from a back side to be transmitted therethrough to display a background;
• first and second polarizing plates respectively affixed to front and back surfaces of the first display panel;
• and
• a display light source including a light guiding plate configured to emit incident light toward the first display panel and a light source attached to an edge of the light guiding plate, the display light source being configured to irradiate the first display panel with light emitted by the light source via the light guiding plate, wherein,
• the first display panel includes an image display area in which the first image is displayed and a transparent display area in which the background is displayed, the transparent display area surrounding the image display area, and
• the light guiding plate includes a light-emitting area and a light-transmissive area, the light-emitting area directing light emitted by the light source toward the image display area, the light-transmissive area transmitting ambient light incident from the back side therethrough toward the transparent display area.