Stretchable display having negative Poisson's ratio

A stretchable display having a negative Poisson's ratio, which is stretched or contracted in an X direction and an Y direction, the stretchable display comprising:

• a first core in which a first light emitting element is installed;
• a second core which is positioned on one side of the first core in the X direction and in which a second light emitting element is installed;
• a third core which is positioned on one side of the first core in the Y direction and in which a third light emitting element is installed;
• a fourth core which is positioned on one side of the second core in the Y direction and one side of the third core in the X direction and in which a fourth light emitting element is installed;
• a plurality of first wires protruding from the one side of the first core and wound around the first core in a counterclockwise direction;
• a plurality of second wires protruding from the one side of the second core and wound around the second core in a clockwise direction;
• a plurality of third wires protruding from the one side of the third core and wound around the third core in a clockwise direction;
• and
• a plurality of fourth wires protruding from one side of the fourth core and wound around the fourth core in a counterclockwise direction,
• wherein any one of the plurality of first wires and any one of the plurality of second wires are connected at a first connector between the first core and the second core,
• the other one of the plurality of first wires and any one of the plurality of third wires are connected at a second connector between the first core and the third core,
• the other one of the plurality of second wires and any one of the plurality of fourth wires are connected at a third connector between the second core and the fourth core,
• the other one of the plurality of third wires and the other one of the plurality of fourth wires are connected at a fourth connector between the third core and the fourth core,
• the second connector and the third connector are connected to each other through a connection wire, and
• when a force is applied to the stretchable display in the X direction to expand the stretchable display, the first core and the fourth core rotate in the counterclockwise direction, the second core and the third core rotate in the clockwise direction, and thus distances between the first core to the fourth core in the X direction and the Y direction increase.