Display panel comprising a photosensitive component that receives reflected light of a fingerprint and is connected to an underside of a second thin film transistor layer and display device

A display panel, comprising:

• a display substrate;
• a counter substrate disposed opposite to the display substrate;
• and
• a backlight comprising a detecting light source disposed under the display substrate;
• wherein the display substrate comprises:
• a first thin film transistor layer having a plurality of thin film transistors;
• a touch electrode disposed on a surface of a side of the first thin film transistor layer;
• and
• a pixel definition layer disposed on a surface of the touch electrode and on the surface of the first thin film transistor layer, wherein the pixel definition layer comprises a plurality of pixel regions, and each of the pixel regions is correspondingly disposed on one of the plurality of thin film transistors;
• and
• the counter substrate comprises:
• a second thin film transistor layer having a plurality of thin film transistors;
• and
• a photosensitive component connected to an underside of the second thin film transistor layer;
• wherein the photosensitive component is configured to receive a reflected light of a fingerprint of a user to identify an identification of the user.