Patent ID: 8680876

Claim:
A dynamic quantity detecting member comprising: a base substrate of which a part or the whole including a contact portion is deformed in accordance with pressing of a contact object and of which an original shape is recovered when the pressing of the contact object disappears; electrodes serving as displacement electrodes of which the plurality of electrodes are fixed to a surface or inside of the base substrate and of which at least one electrode is disposed in a deformable portion which is a region deformable and displaceable during the deformation of the base substrate; and wirings which are connected to the electrodes, wherein during the deformation, the displacement electrodes are deformed and displaced with the deformation and displacement of the deformable portion without separating from the base substrate and without damaging the conductivity of the displacement electrodes, and wherein the deformation and displacement of the deformable portion are detected as a variation in capacitance between the electrodes, and the variation in capacitance is detectable in a deformation amount that is greater than or equal to 1 mm.