Patent ID: 11894202
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A keypad structure, comprising at least one circuit body, wherein the circuit board comprises:
at least one flexible first sheet body;
at least one first circuit layer, wherein the first circuit layer is arranged on the first sheet body;
at least one second sheet body;
at least one second circuit layer, wherein the second circuit layer is arranged on the second sheet body; and
several insulation protruding points, wherein the several insulation protruding points are arranged between the first sheet body and the second sheet body, and the insulation protruding points are arranged around the first circuit layer and the second circuit layer to reserve a gap between the first circuit layer and the second circuit layer, so that the first circuit layer and the second circuit layer are in selective contact.