Display device and method of manufacturing display device

An electronic device, comprising:

• a display device comprising:
• a circuit layer;
• and
• an element layer disposed on the circuit layer and including a light-emitting element, a light sensing element, and an element defining layer separating the light-emitting element and the light sensing element from each other,
• wherein the light-emitting element includes:
• a pixel anode electrode electrically connected with the circuit layer;
• a pixel hole injection layer disposed on the pixel anode electrode;
• an emissive layer disposed on the pixel hole injection layer;
• and
• a pixel cathode electrode disposed on the emissive layer,
• wherein the light sensing element includes:
• a sensing anode electrode electrically connected with the circuit layer;
• a sensing hole injection layer disposed on the sensing anode electrode;
• a photoelectric conversion layer disposed on the sensing hole injection layer;
• and
• a sensing cathode electrode disposed on the photoelectric conversion layer,
• wherein the pixel hole injection layer and the sensing hole injection layer are electrically insulated from each other,
• wherein the pixel cathode electrode and the sensing cathode electrode are electrically connected with each other, and
• wherein the pixel hole injection layer and the sensing hole injection layer are disposed on an uppermost portion of a side surface of the element defining layer, and
• wherein the pixel hole injection layer and the sensing hole injection layer do not overlap an upper surface of the element defining layer.