Patent ID: 8493660

Claim:
An optical layered body comprising a light-transmitting substrate and an antiglare layer provided on the light-transmitting substrate, wherein the antiglare layer has a surface roughness on the outermost surface and a surface haze of 1 to 4%, and wherein in the optical layered body, a mean spacing of tops of local peak of profile S is 0.045 mm or more and 0.10 mm or less determined by the following procedure: a roughness curve of the surface roughness is measured, a mean line of the roughness curve is drawn, and a reference length is set in a direction of the mean line, total number (m) of tops of local peak of profile of the roughness curve within the reference length is counted, Si representing a value of a length between a (m)th top of local peak of profile and a (m−1)th top of local peak of profile, and n representing number of Si are introduced into the following formula (I): [ Formula ⁢ ⁢ 1 ] S ′ = 1 n ⁢ ∑ i = 1 n ⁢ ⁢ S i ( I ) to determine S′, and a value of S′ in the following same reference length is calculated and the calculation is repeated N times, and S′j representing a value of S′ calculated in the above formula (I) and N representing number of S′j are introduced into the following formula (II): [ Formula ⁢ ⁢ II ] S = 1 N ⁢ ∑ j = 1 N ⁢ ⁢ S j ′ ( II ) to determine a mean spacing of tops of local peak of profile S, and wherein when denoting a mean spacing of profile irregularities of the surface of the optical layered body by Sm, a mean inclination angle of profile irregularities by θa, and mean roughness of the surface roughness by Rz, Sm is 50 μm or more and less than 100 μm, θa is 0.1° or more and 1.0° or less, and Rz is more than 0.2 μm and 1.0 μm or less.