Photosensitive module, photosensitive device and display panel

A display panel comprising:

• a base substrate on which a plurality of pixel units are provided;
• a cover plate disposed opposite to the base substrate;
• and
• a photosensitive module disposed between the base substrate and the cover plate, the photosensitive module comprising a plurality of photosensitive cells each comprising:
• a selective light director having a first surface, the first surface comprising a light entry region and a light exit region different from the light entry region, the selective light director being configured to selectively direct a collimated portion of light incident towards the light entry region to the light exit region to exit from the selective light director, the collimated portion of the light having an incidence angle with respect to a normal to the first surface that is less than a threshold;
• and
• a photoelectric converter arranged in the light exit region and having a light receiving surface facing the light exit region to receive the collimated portion of the light exiting from the selective light director, the photoelectric converter being configured to generate an electrical signal based on an intensity of the received collimated portion of the light,
• wherein the photosensitive module is arranged such that the first surface of the selective light director faces the cover plate.