Abstract: A ridge recognition substrate and a ridge recognition apparatus. The ridge recognition substrate includes: a base substrate including a photosensitive area, and a light-shielding area located on at least one side of the photosensitive area; a plurality of photosensitive devices, arranged in the photosensitive area in an array; each photosensitive device includes a first electrode, a photoelectric conversion structure and a second electrode arranged in layers, the photoelectric conversion structure is electrically connected with the first electrode, and the photoelectric conversion structure directly contacts with the second electrode; and dummy devices, arranged in the light-shielding area in an array, each dummy device including a third electrode, an equivalent dielectric layer and a fourth electrode, the third electrode and the first electrode is in the same layer, the fourth electrode is located at the side of the layer where the second electrode is located facing away from the base substrate.

Abstract: Provided in the present disclosure are a print recognition module and a display apparatus. The print recognition module includes: a base substrate; a driving circuit layer located on one side of the base substrate and including a plurality of driving transistors arranged in an array; a first insulating layer located on the side of the driving circuit layer that is away from the base substrate and including a plurality of first via holes running through the thickness thereof; a connecting electrode layer located on the side of the first insulating layer that is away from the driving circuit layer and including a plurality of connecting electrodes which are in one-to-one correspondence with first electrodes of the driving transistors; and a plurality of photoelectric conversion portions located on the side of the connecting electrode layer that is away from the first insulating layer.

Abstract: A print recognition substrate and a print recognition apparatus. The print recognition substrate includes a base substrate, which includes a data line and a gate line crossing each other; a light shielding structure, located on the base substrate, and including a metal layer, and an orthographic projection of the light shielding structure on the base substrate does not overlap with orthographic projections of the data line and the gate line on the base substrate; a photoelectric conversion structure, located on the side of the light shielding structure away from the base substrate, and an orthographic projection of the photoelectric conversion structure on the base substrate is located in an orthographic projection of the light shielding structure on the base substrate, and a distance between an edge of the photoelectric conversion structure and an edge of the light shielding structure is less than or equal to 3 ?m.