Display module and display device

A display device, comprising:

• a display module,
• wherein the display module includes:
• a fingerprint recognition layer;
• a display panel;
• and
• a cover plate,
• wherein:
• the display panel includes a functional layer disposed between the fingerprint recognition layer and the cover plate;
• the fingerprint recognition layer includes a plurality of photosensitive sensors;
• the functional layer includes a plurality of fingerprint recognition light sources and a plurality of imaging apertures;
• the plurality of imaging apertures are configured to image a fingerprint that is in contact with the cover plate onto the plurality of photosensitive sensors;
• a vertical distance between a surface of the cover plate at a side away from the functional layer and an imaging aperture of the plurality of imaging apertures is a first distance h1;
• a vertical distance between a photosensitive sensor of the plurality of photosensitive sensors and the imaging aperture of the plurality of imaging apertures is a second distance h2;
• along a direction parallel to a plane where the display panel is located, a distance between any two adjacent fingerprint recognition light sources is P1, a distance between any two adjacent photosensitive sensors is P3;
• K
• =
• 2
• ⁢
• P
• ⁢
• 3
• ×
• h
• ⁢
• 1
• P
• ⁢
• 1
• ×
• h
• ⁢
• 2
• ;
• 0.8N<K<1.2N;
• and
• N is a positive integer.