Key sheet and key unit having the same

Abstract

Regarding a key sheet having a plurality of key tops provided at a key base made of a transparent or translucent resin, and a key unit using the key sheet, in order to make the key sheet thinner and thereby make a device using the key sheet, e.g., a cellular phone, thinner, the key sheet comprises a key base made of a transparent or translucent resin; a plurality of key tops provided on said key base; and pressing elements or a pressing element sheet having pressing elements provided at a bottom surface thereof, provided at a bottom surface of said key base, wherein said key base is molded, into a sheet form, of a thermoplastic resin which is solid at a room temperature and obtains adhesive force only in a physical change of hot melting and cooling solidification.

Dependencies are inferred from the claim text.