US Patent 11462605 Display apparatus

A display apparatus that includes a substrate comprising a display area and a non-display area on a periphery of the display area. A display device is on the display area. The display device comprises a light-emitting device electrically connected to a thin film transistor. A first barrier wall is on the non-display area. The first barrier wall surrounds the display area and comprises a first layer and a second layer. The first layer comprises a first portion having a first height from an upper surface of the substrate, and a second portion having a second height from the upper surface of the substrate that is less than the first height. The second layer is on the second portion.