A bendable device is provided. The device comprises: a display stack which comprises a window layer and at least one active layer, and a body which comprises an extendable bending region. The active layers are fixed to the window layer at the bottom side of the window layer. Edges of the window layer extend outwards in relation to the at least one active layer at two or more sides of the display stack, and the window layer is rigidly fixed to the body at the edges which extend outwards at the bottom side of the window layer. A method for assembling a bendable device comprising a display is disclosed.