Most touchscreens have a glossy surface for various functional reasons. One important factor is the oleophobic coating that prevents fingerprints and smudges caused by skin oils. In addition, a glossy screen provides superior image quality; it allows light to pass through directly, resulting in sharper images, more vivid colors, and higher contrast. The smooth texture also improves responsiveness by reducing friction, allowing fingers and styluses to move more smoothly across the screen. Finally, the glossy layer often provides physical protection.