US Patent 11343600 Foldable display device and sound providing method thereof

A foldable display device includes: a first display panel including a first substrate and a first pixel array layer which is disposed on a first surface of the first substrate; a second display panel including a second substrate and a second pixel array layer which is disposed on a first surface of the second substrate; and a first sound generator disposed between a second surface of the first display panel opposite to the first surface of the first display panel and a second surface of the second display panel opposite to the first surface of the second display panel, where the first sound generator outputs first sound by vibrating at least one of the first and second display panels.