Display cover substrate and display device including same

A display cover substrate comprising:

• a flexible substrate including one surface and the other surface opposite to the one surface;
• a surface reinforcing layer disposed on the one surface;
• and
• a functional layer disposed on the surface reinforcing layer,
• wherein the functional layer includes a plurality of layers having different refractive indexes, and an average light transmittance is 90% or more in a light wavelength band of 388 nm to 700 nm, an average light transmittance is less than 90% and a minimum light transmittance is 60% or less in a light wavelength band of 250 nm to 388 nm, and the light transmittance is the lowest in a light wavelength band of 240 nm to 340 nm.