Patent ID: 8013262
Filing Date: 2011-09-06
Classification: G06F,H01H

Abstract:
1. A key sheet, which comprises: an operation member having a plurality of depressing operation portions on a sliding operation surface on which a user performs sliding input operation; and a sensor sheet for sensing the sliding input operation of the user as a change in capacitance, further comprising a fixation layer provided below the plurality of depressing operation portions and existing between the operation member and the sensor sheet to form a laminate structure devoid of a gap in a direction perpendicular to a plane of the sliding operation surface, wherein the operation member has, at adjacent positions between the plurality of depressing operation portions, a movable contact portion which enters a gap devoid of a fixation layer between the operation member and the sensor sheet through sliding operation of the user and which is displaced so as to be capable of coming into contact with the sensor sheet.