Optical layered body, method for producing optical layered body, polarizer and image display device

An optical layered body having a light transmitting substrate and a resin layer formed on one surface of said light transmitting substrate,

• wherein said resin layer comprises a binder resin, a polythiophene, an auxiliary conductive agent, a leveling agent, an antiglare agent and an additive having a protonic functional group which carries out a cross-linking reaction,
• the auxiliary conductive agent is carbon nanotubes,
• the resin layer has an antiglare function,
• the resin layer has an uneven surface shape and the uneven shape of the surface of the resin layer having an antiglare function is formed by using a resin layer composition containing an antiglare agent,
• the uneven shape of the resin layer satisfies the following expression in which the average interval of the projections and recesses of the resin layer surface is expressed as Sm;
• the average slanting angle of the uneven part is expressed as θa;
• the arithmetic mean roughness of the unevenness is expressed as Ra;
• and the ten point average roughness of the unevenness is expressed as Rz:
• 50 μm<Sm<600 μm
• 0.1°<θa<1.50°
• 0.02 μm<Ra<0.25 μm
• 0.30 μm<Rz<2.00 μm;
• and
• the resin layer is composed of a single layer and has a first region containing no auxiliary conductive agent from the interface on the opposite side to the light transmitting substrate to 100 nm;
• and
• wherein the resin layer further comprises
• (i) a second region wherein the auxiliary conductive agent exists from the interface of the resin layer on the light transmitting substrate side and a third region wherein the polythiophene exists and being located between the first region and the second region,
• or (ii) a second region wherein the auxiliary conductive agent exists from the interface of the resin layer on the light transmitting substrate side and a third region wherein the auxiliary conductive agent and polythiophene exist and being located between the first region and the second region.