| 摘要 |
PURPOSE: A mobile communication device is provided to insert an input device portion into a case, in order to move a location of an input device, and to determine size of a screen through the location of the input device, so that a user can select whether to see a larger screen or to utilize the input device more. CONSTITUTION: A keypad(301) is combined with two sliding protruded portions(311). Each of the protruded portions(311) of the keypad(301) is located out of a case(305) of a mobile communication device, is attached to both sides of the keypad(301), and moves along a channel(309). The protruded portions(311) are located inside a thin sliding channel within the case(305). A display is contacted with one end of the keypad(301). The other end of the keypad(301) is inserted inside an empty space(307).
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