An optical clear resin includes a tetrahydrofuran (THF)-based oligomer having a glass transition temperature of about −50° C. or less, an acrylate-based monomer, and a photoinitiator. As the optical clear resin includes the tetrahydrofuran-based oligomer, the curing time of the optical clear resin is shortened and the modulus of elasticity of the optical clear resin is lowered.