A window structure includes a window, a design layer structure on the window, a light shield layer on the design layer structure, and a light absorption layer. The design layer structure includes a first hole exposing a portion of the window. The light shield layer includes a second hole in fluid communication with the first hole. The light absorption layer covers at least a portion of the design layer structure exposed by the first and second holes, and includes a third hole exposing a portion of the window. By including the light absorption layer of a gray or black color to cover exposed portions of the design layer structure, a vignette about an image caused by the design layer structure is prevented.