Optical display device protecting film, optical member comprising same, and optical display device comprising same

A protective film for optical displays, comprising:

• a first base layer;
• a hard coating layer formed on the first base layer, and
• an adhesive layer formed on a lower surface of the first base layer,
• wherein the first base layer is formed of a thermoplastic polyurethane and the first base layer has a thickness of 100 μm or more to 200 μm or less and a Shore hardness of 95 A to 98 A,
• wherein the protective film has an indentation modulus of about 0.3 Gpa or more to less than about 1.5 GPa and an indentation hardness of about 0.1 GPa or more to less than about 0.3 GPa, as measured on the hard coating layer thereof utilizing a nano-indenter,
• wherein the adhesive layer is formed of an adhesive composition that includes a monomer mixture for a hydroxyl group-containing (meth)acrylic copolymer,
• wherein the hard coating layer is formed of a hard coating composition comprising a first urethane (meth)acrylate oligomer, a second urethane (meth)acrylate oligomer, a (meth)acrylate monomer and zirconia particles, the zirconia particles are present in an amount of 1 part by weight to 4 parts by weight of 100 parts by weight of the first urethane (meth)acrylate oligomer, the second urethane (meth)acrylate oligomer, the (meth)acrylate monomer and the zirconia particles, and
• a difference in index of refraction between the hard coating layer and the first base layer is 0.01 to 0.2.