US Patent 11886248 Folding display device

A folding display device includes a display panel and a support plate configured to support the display panel. The display panel includes a flexible display area. A bending area corresponding to the flexible display area is provided on the support plate, and an extensible hollow structure is provided in the bending area. By providing the hollow structure, deformability and extensibility of the bending area are improved, and a risk of peeling or cracking between layers of the display device is reduced.