Touch panel

1. A touch panel comprising, in sequence:

a stretchable array substrate,

a touch detection electrode; and

a resin plate, wherein

the stretchable array substrate includes: a switching element having a source coupled to the touch detection electrode; a gate line coupled to a gate of the switching element; and a signal line coupled to a drain of the switching element,

the resin plate has:

a facing surface facing the touch detection electrode; and

a detection surface facing opposite to the facing surface,

the facing surface or the detection surface has a recessed surface,

the recessed surface is provided with a high permittivity layer having permittivity higher than permittivity of the resin plate, and

when viewed in a stacking direction in which the stretchable array substrate, the touch detection electrode, and the resin plate are stacked, the high permittivity layer overlaps the touch detection electrode that is coupled to the source of the switching element.

2. The touch panel according to claim 1 , wherein

the stretchable array substrate comprises a resin base member,

the resin base member comprises:

a plurality of bodies disposed apart from each other; and

a plurality of hinges that couple the bodies, and

the touch detection electrode and the high permittivity layer overlap a corresponding one of the bodies when viewed in the stacking direction.

3. The touch panel according to claim 2 , wherein the recessed surface is provided to the facing surface.

4. The touch panel according to claim 1 , wherein the recessed surface is provided to the facing surface.