Touch screen, manufacturing method thereof and display device

A display device, comprising:

• a touch screen comprising:
• a substrate,
• a conductive film layer, and
• an insulating layer,
• a black ink layer,
• a metal wiring layer, and
• a transparent insulating layer,
• an adhesive, and
• a display screen,
• wherein the insulating layer is provided, on its surface away from the substrate, with protruding structure that are integrally formed with the insulating layer and configured to increase an area of the surface of the insulating layer,
• wherein the touch screen comprises a visible region and a non-visible region, and the protruding structures have a larger distribution density in the non-visible region than in the visible region,
• wherein the substrate, the black ink layer, the metal wiring layer, and the insulating layer are sequentially stacked in the non-display region such that the black ink layer contacts the substrate, the metal wiring layer contacts the black ink layer, and the insulating layer contacts both the metal wiring layer and the black ink layer,
• wherein, in the display region, the conductive film layer and the metal line layer contact the substrate, the transparent insulating layer is disposed on the metal wiring layer, and the insulating layer is disposed on both the conductive film layer and the transparent insulating layer, and
• wherein the display screen and the protruding structures of the insulating layer are bonded using the adhesive.