In a tactile display apparatus which displays image information as
differences in elevation created among tactile pins which are disposed
crisscross in a matrix arrangement, a fewer number of solenoids are used
which make the tactile pins project and retract, the number of components
is accordingly reduced and the crisscross adjacent gaps between the
tactile pins are narrow. Since the solenoids 4 which make the tactile
pins 10 project and retract are disposed in a row vertically, one for
every preset number of the tactile pins which are lined up in the
vertical direction, to a movable unit 5 which is capable of freely moving
in the vertical direction and the horizontal direction along which the
tactile pins are disposed, and since the movable unit repeatedly moves
along the vertical direction and the horizontal direction in turn, the
solenoids make all tactile pins project and retract.
