Display device comprising switchable anti-peeping device with light orientation layer

A display device, comprising a display panel, a backlight module, and a switchable anti-peeping device,

• wherein the switchable anti-peeping device comprises a first substrate and a second substrate provided opposed to each other, and a light control layer located between the first substrate and the second substrate,
• the first substrate comprises a first base substrate, and a first light orientation layer and a first electrode layer which are provided on the first base substrate,
• the second substrate comprises a second base substrate, and a second electrode layer provided on the second base substrate,
• the first light orientation layer defines an angle of emergence of light passing through the first light orientation layer, and the light control layer is capable of switching between a transparent state and a scattering state,
• the first light orientation layer comprises a plurality of first barriers,
• a height of the first barriers limits the angle of emergence of the light passing through the first light orientation layer, and/or a distance between two adjacent first barriers limits the angle of emergence of the light passing through the first light orientation layer,
• the first barriers are configured such that the angle of emergence of the light passing through the first light orientation layer is only limited to 60° or less, and is not greater than 60°,
• the switchable anti-peeping device is located between the backlight module and the display panel,
• the display panel comprises an upper substrate and a lower substrate, and the lower substrate also serves as the second base substrate of the switchable anti-peeping device, and
• a wire grid polarizing film is provided on the lower substrate, and the wire grid polarizing film also serves as the second electrode layer of the switchable anti-peeping device.