Transparent display device

The invention discloses a transparent display device. A second light source arranged on a base and/or a first light source arranged on one side, deviating from the base, of a display panel are/is used as system light sources/a system light source, and light irradiating toward the lower back portion of the display panel from the first light source and light irradiating toward the upper back portion of the display panel from the second light source irradiate objects placed behind the display panel, and then can form space light right behind the display panel after being reflected (generally in a diffusing mode) by the objects. The space light is equal to the function of background light in effect and irradiates the display panel to realize transparent display. Compared with an existing transparent display device, a light guide plate arranged behind the display panel can be omitted, the guide plate is prevented from influencing the transparency of the transparent display device, a lamp box used for placing objects can be omitted, and the transparent display device can be made to be lighter and thinner.