Display device

A display device comprising:

• a substrate comprising a first display area and a second display area;
• a plurality of first pixels disposed on the first display area;
• a plurality of second pixels disposed on the second display area;
• and
• a plurality of diffraction patterns disposed on the second pixels, wherein an array density of the first pixels disposed in the first display area is greater than an array density of the second pixels disposed in the second display area when viewed in a plane, and heights of the diffraction patterns vary as a distance from the first display area increases.

A display device comprising:

• a substrate comprising a first display area and a second display area;
• a plurality of first pixels disposed on the first display area;
• a plurality of second pixels disposed on the second display area;
• and
• a plurality of diffraction patterns disposed on the second pixels, wherein the first pixels are grouped into a plurality of first pixel groups, the second pixels are grouped into a plurality of second pixel groups, an array density of the first pixels disposed in the first display area is greater than an array density of the second pixels disposed in the second display area when viewed in a plane, and distances between the second pixel groups vary as a distance from the first display area increases.