US Patent 11950445 Foldable display screen including multi-cover protection layers

A foldable display screen includes a display panel, a first optical adhesive layer, a first cover protection layer, a second optical adhesive layer, and a second cover protection layer; the first optical adhesive layer is located on the display panel; the first cover protection layer is located on a side of the first optical adhesive layer away from the display panel; the second optical adhesive layer is located on a side of the first cover protection layer away from the first optical adhesive layer; the second cover protection layer is located on a side of the second optical adhesive layer away from the first cover protection layer. At an operating temperature, an elastic modulus of the second optical adhesive layer is smaller than an elastic modulus of the first optical adhesive layer.