| 摘要 |
The invention presents a new way to implement bigger keyboard in basic mobile terminal devices without increasing the size. The mobile terminal device is foldable, and can be arranged in two different closed positions. A mobile terminal device according to the invention comprises a housing, at least two covers pivotably attached to said housing, at least two different operative surfaces. Said two covers are movable between at least two closed positions. Said at least two different operative surfaces are arranged on different surfaces of one of said housing and/or said covers in a way that in at least one of said closed positions, one of said two different operative surfaces is located on an outer surface of said mobile terminal device in said closed position. So a user can chose which user interface is presented to him by closing the mobile terminal device in the one or the other way.
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