Display panel and display device are provided. The display panel includes: a color film substrate, an array substrate, at least one light sensitive unit, and collimating apertures penetrating a portion of film layers of the color film substrate and the array substrate along a first direction perpendicular to the display panel. The collimating apertures and the at least one light sensitive unit are disposed in a one-to-one correspondence. The color film substrate includes a first substrate, a first light-blocking layer with first openings, and at least one second light-blocking layer with second openings. The array substrate includes a third light-blocking layer with third openings. An orthographic projection of each first opening, an orthographic projection of a corresponding second opening, and an orthographic projection of a corresponding third opening, at least partially overlap an orthographic projection of a corresponding collimating aperture on the first substrate.