| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an operation switch which is not constrained by the design, maintains excellent depression operability, and can prevent deterioration in contact operability due to deterioration in detection accuracy of capacitance when a water drop enters between separated independent keys. <P>SOLUTION: The operation switch comprises an operation panel 1 including at least a plurality of separated independent keys 2, and a waterproof layer 7, a capacity detection part 8, a light guide 101, a metal dome 111, and a substrate 12 provided, in order, on the back side of the operation panel 1. Grooves 15 are formed, respectively, at positions facing the outer peripheries of the plurality of keys 2 on the surface of the waterproof layer 7 in contact with the capacity detection part 8, and the operation panel 1, the waterproof layer 7 and the capacity detection part 8 are bonded integrally. <P>COPYRIGHT: (C)2013,JPO&INPIT |
