US Patent 10416031 Pressure sensing device

A pressure sensing mat may include: a first substrate; a second substrate disposed opposite to the first substrate; a first electrode layer disposed on a side of the first substrate that faces the second substrate, the first electrode layer comprising a plurality of first electrode patterns; a second electrode layer disposed on a side of the second substrate that faces the first substrate, the second electrode layer comprising a plurality of second electrode patterns; and a spacer layer disposed between the first substrate and the second substrate and comprising a plurality of holes such that the first electrode patterns are configured to contact the second electrode patterns through the holes.