Display Panel and Display Device

A display panel comprising:

• a thin-film transistor layer in which a plurality of first thin-film transistors and a plurality of second thin-film transistor are disposed;
• a display layer disposed on the thin-film transistor layer, in which a plurality of emitting devices are disposed;
• and
• a sensing layer disposed under the thin-film transistor layer, the sensing layer comprising:
• a plurality of sensing pixel electrodes disposed on a bottom surface of the thin-film transistor layer;
• a piezoelectric material disposed under the plurality of sensing pixel electrodes;
• and
• a sensing common electrode disposed under the piezoelectric material, and
• wherein at least one of the plurality of first thin-film transistors is electrically coupled to the plurality of sensing pixel electrodes, and at least one of the plurality of the second thin-film transistors is electrically coupled to the plurality of emitting devices.