Keyboard application area extension medium for e.g. computer, has information carrier whose material is elastic such that while hitting key through carrier, compressive force acting on neighboring keys remains below operation threshold

摘要

The medium has a laminar information carrier (2) whose base corresponds to a base of a key (3), for covering keys of the keyboard during use. The material of the carrier is ductile and elastic in such a manner that while hitting the key through the information carrier, the compressive force acting on the neighboring keys remains below the operation threshold. The carrier comprises of a polygonal or a rectangular surface area.