Display panel and method of fabricating the same, display device

A display panel comprising:

• a display substrate comprising:
• a first base substrate;
• and
• a first electrode, an electroluminescent layer and a second electrode on the first base substrate, wherein the first electrode, the electroluminescent layer and the second electrode are sequentially away from the first base substrate;
• a package substrate opposite to the display substrate, comprising:
• a second base substrate;
• and
• a conductive layer on the second base substrate, the conductive layer and the second electrode facing towards each other;
• and
• a conductive adhesive between the second electrode and the conductive layer,
• wherein the conductive adhesive is configured to bond the display substrate with the package substrate, and electrically connect the second electrode with the conductive layer,
• wherein the package substrate further comprises:
• a photodetecting layer on a side of the conductive layer adjacent to the second base substrate,
• wherein the photodetecting layer is configured to receive light generated by the electroluminescent layer and transmitted through the second electrode.