Protective display film

An article, comprising:

• an optical display;
• a protective film disposed on the optical display, the protective film comprising:
• a transparent polymeric substrate layer;
• a transparent aliphatic cross-linked polyurethane layer disposed on the transparent polymeric substrate layer, the transparent aliphatic cross-linked polyurethane layer having a glass transition temperature in a range from 11 to 27 degrees Celsius, a Tan Delta peak value in a range from 0.5 to 2.5, a cross-link density in a range from 0.34 to 0.65 mol/kg, and a NCO/OH ratio in a range from 0.8 to 1;
• the display film having a haze value of 1% or less;
• an optical adhesive layer fixing the transparent polymeric substrate layer to the optical display.