Flexible display device and method for changing shape of the same

A method for changing a shape of a flexible display device, the flexible display device comprising a flexible display panel and a shape memory structure having a shape memory component, the shape memory component comprising a first memory layer, a first thermal insulation layer and a second memory layer stacked sequentially in a direction away from the flexible display panel, the first memory layer and the second memory layer each having a shape memory function, the first memory layer having a first memory shape, and the second memory layer having a second memory shape that is different from the first memory shape,

• the method comprising:
• controlling a temperature of the first memory layer above a deformation temperature of the first memory layer and controlling a temperature of the second memory layer below a deformation temperature of the second memory layer to change a shape of the shape memory component to the first memory shape, thereby driving the flexible display panel to change its shape;
• and
• controlling the temperature of the second memory layer above the deformation temperature of the second memory layer and controlling the temperature of the first memory layer below the deformation temperature of the first memory layer to change the shape of the shape memory component to the second memory shape, thereby driving the flexible display panel to change its shape.

A method for fabricating a flexible display device, comprising:

• preparing a flexible display panel;
• and
• forming, on the flexible display panel, a shape memory structure comprising a shape memory component, the shape memory component comprising a first memory layer, a first thermal insulation layer, and a second memory layer stacked sequentially in a direction away from the flexible display panel,
• wherein during the formation of the shape memory structure,
• the temperatures of the first memory layer and the second memory layer are controlled above deformation temperatures of the first memory layer and the second memory layer, respectively, and an external force is applied to the first memory layer and the second memory layer so that the shapes of the first memory layer and the second memory layer conform to a predetermined initial shape of the flexible display device, and
• subsequentially, the temperatures of the first memory layer and the second memory layer are controlled below the deformation temperature of the first memory layer and the second memory layer, respectively, while maintaining the external force, so that the shapes of the first memory layer and the second memory layer are maintained to conform to the predetermined initial shape of the flexible display device.