A display device including a display panel having a top surface, a side surface, a light shielding component, and an optical film is provided. The side surface is adjacent to the top surface. The light shielding component has a first part and a second part. The first part is disposed on the top surface of the display panel. The second part is disposed on the side surface of the display panel. The optical film at least covers the border between the top surface of the display panel and the first part of the light shielding component. The width of the first part of the light shielding component is less than 1 mm.