US Patent 10930883 Foldable display device

A foldable display device includes a rigid film. The rigid film has first and second sections between which a space having a first width is located. The rigid film is foldable about a folding axis disposed between the first and second sections. A first double-sided adhesive film is disposed on the rigid film. A lower flexible module is disposed on the first double-sided adhesive film. A second double-sided adhesive film is disposed on the lower flexible module. A flexible display module is disposed on the second double-sided adhesive film and includes an electroluminescent unit. A third double-sided adhesive film is disposed on the flexible display module. An upper flexible module is disposed on the third double-sided adhesive film.