Double-sided display device

A double-sided display device, comprising:

• a transparent self-luminous display panel having a light-emitting side and a backside opposite to the light-emitting side;
• a switching panel disposed on the backside of the transparent self-luminous display panel, wherein the switching panel comprises:
• a first electrode;
• a second electrode;
• and
• a liquid crystal layer disposed between the first electrode and the second electrode, wherein the first electrode and the second electrode are disposed to control liquid crystal molecules in the liquid crystal layer so that the switching panel comprises a scattering state and a transparent state;
• and
• a projection device disposed to project toward the light-emitting side of the transparent self-luminous display panel;
• wherein
• the double-sided display device is configured to operate in a transparent mode, a shielding mode, an augmented reality mode, a single-sided display mode or a double-sided display mode;
• in the transparent mode, the transparent self-luminous display panel and the projection device are turned off, and the switching panel is switched to the transparent state;
• in the shielding mode, the transparent self-luminous display panel and the projection device are turned off, and the switching panel is switched to the scattering state, wherein a transmittance of the double-sided display device in the shielding mode is lower than a transmittance of the double-sided display device in the transparent mode;
• in the augmented reality mode, the transparent self-luminous display panel is turned on, the projection device is turned off and the switching panel is switched to the transparent state;
• in a single-sided display mode, the transparent self-luminous display panel is turned on, the projection device is turned off and the switching panel is switched to the scattering state;
• and
• in a double-sided display mode, the transparent self-luminous display panel and the projection device are turned on, and the switching panel is switched to the scattering state;
• wherein the transparent self-luminous display panel comprises a transparent substrate, and the first electrode directly disposed on the backside of the transparent substrate.