Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 1, 2010
Patent Application Number
11820870
Date Filed
June 20, 2007
Patent Primary Examiner
Patent abstract
A keypad includes an elastic layer for providing a restoring force to the keypad and an electric paper on the elastic layer, in which a plurality of key button regions for providing symbols in the form of images are defined. A keypad assembly includes a keypad, which has an elastic layer for providing a restoring force to the keypad and an electric paper on the elastic layer, in which a plurality of key button regions for providing symbols in the form of images are defined, and a switch board under the keypad for converting a pressure applied by a user to the key button region into an electric contact.
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