A display apparatus, comprising: a display panel having a display portion in a display region, a connecting portion, and a bending portion; a cover window on a first side of the display portion; wherein the bending portion connects the display portion and the connecting portion, wherein the bending portion is bent so that the connecting portion is facing a second side of the display portion, forming a bending cavity (Cpb) that is surrounded by the bending portion, the second side being opposite to the first side; a support layer between the display portion and the connecting portion; a first back film covering a back surface of the connecting portion, the first back film on a side of the connecting portion closer to the display portion; characterized in that, the display apparatus further comprises: a first adhesive layer attaching the support layer to the first back film; a metal plate between the support layer and the display portion; and a second adhesive layer attaching the support layer to the metal plate; wherein the display apparatus comprises a stress-reducing space (Ssr) having a first side wall comprising a first exposed surface of a first exposed portion of the first back film, a second side wall comprising a second exposed surface of a second exposed portion of the metal plate, and a third side wall comprising a first lateral surface of the support layer; and the stress-reducing space is open to the bending cavity; wherein the cover window is on a side of the display portion away from the support layer; and an orthographic projection of the first back film on the cover window covers an orthographic projection of the support layer on the cover window by a first margin having a first width greater than zero along a direction from the support layer to the bending portion. a display panel having a display portion in a display region, a connecting portion, and a bending portion; a cover window on a first side of the display portion; wherein the bending portion connects the display portion and the connecting portion, wherein the bending portion is bent so that the connecting portion is facing a second side of the display portion, forming a bending cavity (Cpb) that is surrounded by the bending portion, the second side being opposite to the first side; a support layer between the display portion and the connecting portion; a first back film covering a back surface of the connecting portion, the first back film on a side of the connecting portion closer to the display portion; characterized in that, the display apparatus further comprises: a first adhesive layer attaching the support layer to the first back film; a metal plate between the support layer and the display portion; and a second adhesive layer attaching the support layer to the metal plate; wherein the display apparatus comprises a stress-reducing space (Ssr) having a first side wall comprising a first exposed surface of a first exposed portion of the first back film, a second side wall comprising a second exposed surface of a second exposed portion of the metal plate, and a third side wall comprising a first lateral surface of the support layer; and the stress-reducing space is open to the bending cavity; wherein the cover window is on a side of the display portion away from the support layer; and an orthographic projection of the first back film on the cover window covers an orthographic projection of the support layer on the cover window by a first margin having a first width greater than zero along a direction from the support layer to the bending portion. a first adhesive layer attaching the support layer to the first back film; a metal plate between the support layer and the display portion; and a second adhesive layer attaching the support layer to the metal plate; wherein the display apparatus comprises a stress-reducing space (Ssr) having a first side wall comprising a first exposed surface of a first exposed portion of the first back film, a second side wall comprising a second exposed surface of a second exposed portion of the metal plate, and a third side wall comprising a first lateral surface of the support layer; and the stress-reducing space is open to the bending cavity; wherein the cover window is on a side of the display portion away from the support layer; and an orthographic projection of the first back film on the cover window covers an orthographic projection of the support layer on the cover window by a first margin having a first width greater than zero along a direction from the support layer to the bending portion.