The present disclosure provides a pressure sensor. The pressure sensor includes a first substrate, a second substrate, a sealant frame for bonding the edges of the first substrate and the second substrate and supporting the separation between the first substrate and the second substrate inside the sealant frame, a common electrode on the side of the first substrate, a plurality of independent pressure sensing electrodes on the side of the second substrate, and a pressure sensing circuit supplying pressure sensing signal to the common electrode and determining a position where an external force is applied by measuring at least one voltage on the pressure sensing electrodes. Only when an external force applied to at least one of the first substrate and the second substrate exceeds a certain threshold, the pressure sensing electrode corresponding to the position where the external force is applied contacts the common electrode.