Display device

A display device comprising:

• a display module comprising a first area, a second area, and a bending area disposed between the first area and the second area and having a predetermined curvature radius;
• an anti-reflection layer disposed on the display module and overlapping the first area;
• and
• a bending protection layer disposed on the display module, spaced apart from an edge of the anti-reflection layer on a reference plane, and overlapping the first area, the bending area, and the second area,
• wherein the bending protection layer comprises a first portion overlapping at least the first area and a second portion overlapping at least the bending area,
• the first portion is disposed closer to the anti-reflection layer than the second portion,
• the first portion has a maximum thickness greater than that of the second portion, and
• a maximum stress generated in the display module is determined by mathematical equation:
• Maximum stress=88−1.52×TH+1.030×SP+0.278×MD+0.0124×TH2−0.0008×SP2+0.000857×MD2,
• wherein TH represents a maximum thickness of the first portion, a SP represents a maximum inclined angle of the first portion, and MD represents an elastic modulus of the first portion.