| 摘要 |
It is an object of the present invention to provide a key sheet and the like which can suppress local elevation of temperature, and effectively diffuse heat loss from electronic circuits. The key sheet includes: a viscoelastic sheet 16b having a viscoelastic property, and having a first surface and a second surface; a button section 16a located on the side of the first surface of the viscoelastic sheet 16b; a thermally-conductive sheet 14 located along the first surface or the second surface of the viscoelastic sheet 16b, the thermally-conductive sheet 14 having a thermal conductivity equal to a specific value; and a contact section 16d projected from the second surface of the viscoelastic sheet 16b, the contact section occupies a position corresponding to the button section 16a.
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