A display device, comprising: a first substrate; a second substrate arranged opposite to the first substrate to form a display panel; and a deformation layer arranged at any surface of the display panel; wherein the deformation layer is configured to enable the display panel to generate first deformation when the deformation layer reaches a first deformation temperature, so as to enable the display device to achieve curved-surface display; wherein the deformation layer is formed as a grid comprising a plurality of segments in a longitudinal Y-axis direction and a plurality of segments in a lateral X-axis direction, which is horizontal and perpendicular to the Y-axis direction; the plurality of segments in the Y-axis direction is arranged longitudinally and parallel to each other, each segment in the Y-axis direction is a straight line; the plurality of segments in the X-axis direction is arranged laterally and parallel to each other, and each segment in the X-axis direction is provided with a predetermined shape; wherein the predetermined shape of each segment in the X-axis direction is a waveform line, a mountain-like line, a hyperbolic curve or a rectangular-wave; characterized in that all portions of each segment in the X-axis direction are in a shape of the predetermined shape, the shapes of the portions of each segment in the X-axis direction are of different sizes; the size of the predetermined shape at two end portions of each segment in the X-axis direction is small, allowing a large bending degree of the portions; the size of the predetermined shape at a middle portion of each segment in the X-axis direction is large, allowing a small bending degree of the middle portion; or, each segment in the X-axis direction comprises a middle portion in a shape of a straight-line, and two end portions each in a shape of the predetermined shape. a first substrate; a second substrate arranged opposite to the first substrate to form a display panel; and a deformation layer arranged at any surface of the display panel; wherein the deformation layer is configured to enable the display panel to generate first deformation when the deformation layer reaches a first deformation temperature, so as to enable the display device to achieve curved-surface display; wherein the deformation layer is formed as a grid comprising a plurality of segments in a longitudinal Y-axis direction and a plurality of segments in a lateral X-axis direction, which is horizontal and perpendicular to the Y-axis direction; the plurality of segments in the Y-axis direction is arranged longitudinally and parallel to each other, each segment in the Y-axis direction is a straight line; the plurality of segments in the X-axis direction is arranged laterally and parallel to each other, and each segment in the X-axis direction is provided with a predetermined shape; wherein the predetermined shape of each segment in the X-axis direction is a waveform line, a mountain-like line, a hyperbolic curve or a rectangular-wave; characterized in that all portions of each segment in the X-axis direction are in a shape of the predetermined shape, the shapes of the portions of each segment in the X-axis direction are of different sizes; the size of the predetermined shape at two end portions of each segment in the X-axis direction is small, allowing a large bending degree of the portions; the size of the predetermined shape at a middle portion of each segment in the X-axis direction is large, allowing a small bending degree of the middle portion; or, each segment in the X-axis direction comprises a middle portion in a shape of a straight-line, and two end portions each in a shape of the predetermined shape.