US Patent 11300819 Curved surface display device having backlight assembly with frame members

A curved surface display device includes a display panel, a first middle frame located on a side of the display panel and configured to support the display panel, a backlight assembly located at a side of the first middle frame away from the display panel and having an optical film and a second middle frame, and a back plate located at a side of the backlight assembly away from the display panel. The back plate includes a bottom plate and a side plate disposed on an edge of the bottom plate; the second middle frame is located at a side of the optical film away from the display panel, and is connected to the bottom plate.