A touch screen (13) on a display device (1), and a method for manufacturing a touch screen (13) on a display device (1). The display device (1) has an upper substrate (12) for protecting the display device (1) from the environment, the touch screen (13) comprising an electrically conductive transparent first layer (16). The first layer (16) comprises a network of electrically conductive high aspect ratio molecular structures (HARM-structures), the first layer (16) being embedded into the upper substrate (12) of the display device (1) to protect the conductive transparent first layer (16), for reducing the optical thickness of the structure between a viewer and the region of the display device (1) in which the image is formed.