Keyboard, actuator component for keyboard and mobile communication device with keyboard

The utility model discloses a keyboard that can be used with a mobile communication or hand type device. The keyboard comprises an actuator component formed by a plurality of kinds of materials, and also comprises a plurality of actuators, a seal pressing strip/or a light guide piece. The seal pressing strip is formed by flexible or compressible materials like silicone rubber. When the keyboard is mounted, the seal pressing strip compresses against the mounting surface of the device, and provides sealing for environmental factors of moisture, dust and/or static electricity discharging for the key board.