Display panel, display device and image acquiring method thereof

A display panel, comprising:

• a first imaging region, the first imaging region being provided with a filter;
• wherein, the filter is configured to adjust a polarization direction of light incident into the filter, and configured to filter out polarized light having a set polarization direction in the adjusted light,
• wherein the filter includes:
• a polarization direction adjuster, configured to adjust the polarization direction of the light incident into the filter;
• an optical filter, provided on a light emergent side of the polarization direction adjuster, and configured to filter out the polarized light having the set polarization direction in the adjusted light;
• and
• the polarization direction adjuster includes a liquid crystal cell, and the optical filter includes a first polarizer located on a light emergent side of the liquid crystal cell;
• the liquid crystal cell includes a first liquid crystal layer, a first electrode and a second electrode which are configured to drive the first liquid crystal layer to deflect,
• wherein the display panel further includes a display region, the display region is provided with a display unit, the display unit is configured to display an image, and the display unit includes a second liquid crystal layer;
• wherein the second liquid crystal layer and the first liquid crystal layer are provided in a same layer and made of a same material.