Array substrate, display substrate and display device

A display substrate, comprising an array substrate and a color film substrate, wherein

• the array substrate comprises:
• a display region and a peripheral region surrounding the display region, the peripheral region comprising at least one first sensing region;
• wherein each of the at least one first sensing region is provided with at least one first sensor, the at least one first sensor comprises a photodiode and a driving circuit electrically connected to each other, the photodiode comprises:
• an anode and a cathode arranged opposite to each other, and a photosensitive material layer between the anode and the cathode;
• the array substrate comprises:
• a base substrate;
• a plurality of thin film transistors on the base substrate, the thin film transistors each comprising a source and a drain;
• a common electrode on a side of the plurality of thin film transistors away from the base substrate;
• a pixel electrode on a side of the common electrode away from the base substrate, the pixel electrode being electrically connected to the drains of the thin film transistors;
• wherein,
• the common electrode is reused as an anode of the photodiode;
• the pixel electrode is reused as a cathode of the photodiode;
• the driving circuit comprises at least a first transistor, one thin film transistor of the plurality of thin film transistors is reused as the first transistor, and a drain of the first transistor is electrically connected to the cathode of the photodiode;
• the color film substrate comprises a black matrix, a peripheral region of the black matrix comprises at least one third sensing region, and the at least one third sensing region is in a one-to-one correspondence with the at least one first sensing region of the array substrate;
• each of the at least one third sensing region comprises at least one slit, the at least one slit is in a one-to-one correspondence with the at least one first sensor.

A display device, comprising a display substrate, wherein the display substrate comprises an array substrate and a color film substrate,

• the array substrate comprises:
• a display region and a peripheral region surrounding the display region, the peripheral region comprising at least one first sensing region;
• wherein each of the at least one first sensing region is provided with at least one first sensor, the at least one first sensor comprises a photodiode and a driving circuit electrically connected to each other, the photodiode comprises:
• an anode and a cathode arranged opposite to each other, and a photosensitive material layer between the anode and the cathode;
• the array substrate comprises:
• a base substrate;
• a plurality of thin film transistors on the base substrate, the thin film transistors each comprising a source and a drain;
• a common electrode on a side of the plurality of thin film transistors away from the base substrate;
• a pixel electrode on a side of the common electrode away from the base substrate, the pixel electrode being electrically connected to the drains of the thin film transistors;
• wherein,
• the common electrode is reused as an anode of the photodiode;
• the pixel electrode is reused as a cathode of the photodiode;
• the driving circuit comprises at least a first transistor, one thin film transistor of the plurality of thin film transistors is reused as the first transistor, and a drain of the first transistor is electrically connected to the cathode of the photodiode;
• the color film substrate comprises a black matrix, a peripheral region of the black matrix comprises at least one third sensing region, and the at least one third sensing region is in a one-to-one correspondence with the at least one first sensing region of the array substrate;
• each of the at least one third sensing region comprises at least one slit, the at least one slit is in a one-to-one correspondence with the at least one first sensor.