The invention relates to a flexible back plate for a
flexible display. The flexible back plate comprises a structure layer and a laying layer, wherein the structure layer is of a
honeycomb structure with negative Poisson ratio; the laying layer is evenly laid in the
central plane of the structure layer; the structure layer is made of shape memory polymers or composite materials; the laying layer is made of
carbon fibers; the laying layer is provided with an leading-out terminal provided with two electrodes; when the two electrodes are electrified, the laying layer generates heat to heat the structure layer to enable the structure layer to reach the glass-
transition temperature of the material of the structure layer, and exerts an external force to the
honeycomb structure to achieve the purpose of deforming the
honeycomb, the shape of the honeycomb can be fixed after the heating is stopped, the size is increased in two directions, in this way, the size of the back plate is increased; when the
honeycomb structure is in an unidirectional compression, the size is decreased in a plane, in this way, the size of the back plate is decreased; and the
honeycomb structure with negative Poisson ratio has double-curvature characteristic. The flexible back plate has the following characteristics of being bendable, having
double curvature,
impact resistance and anti-shock performance, being capable of being driven intelligently, and being light and beautiful.