| CPC G08B 6/00 (2013.01) | 10 Claims |
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1. An information output apparatus comprising:
an upper unit comprising at least one expression unit, the expression unit being configured to move in at least one direction and to be sensed by a user;
a lower unit arranged to overlap the upper unit and comprising at least one driving force providing unit configured to provide a driving force for the expression unit,
the driving force providing unit comprising a driving support unit and a coil unit arranged around the driving support unit,
in response to an electric field being applied to the coil unit, and a current flowing through the coil unit, the driving force configured to cause the expression unit to move upward or downward, and
the lower unit comprising a first surface facing the upper unit and a second surface opposite to the first surface; and
a base unit arranged to overlap the lower unit and facing the second surface of the lower unit.
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