Patent ID: 7759594
Filing Date: 2010-07-20
Classification: H01H

Abstract:
1. A thin key sheet comprising; a first resin film constituting a base portion of a key sheet and having a transparency and a thickness of 0.1 mm or less, a plurality of pressing elements having bulges formed at a predetermined position on an undersurface of said first resin film, in a projecting manner by means of a heating drawing, with a resin filled in said bulges, a second resin film constituting a base portion of a key sheet and having a transparency and a thickness of 0.1 mm or less, and a plurality of key top portions formed by means of a mold printing on a top surface of said second resin film and at a position corresponding to each of said plurality of pressing elements, wherein the key sheet is configured by superposing and adhering a top surface of said first resin film and an undersurface of said second resin film together.