Optical film and display device

An optical film, comprising:

• a sheet-like transparent substrate having a first surface and a second surface opposite the first surface;
• a colored layer that is formed to face the first surface of the transparent substrate and contains a colorant;
• and
• an optical function layer formed on the colored layer, wherein
• the colorant contains at least one of
• a first coloring material having a maximum absorption wavelength in a range of 470 to 530 nm and an absorption spectral half width of 15 to 45 nm,
• a second coloring material having a maximum absorption wavelength in a range of 560 to 620 nm and an absorption spectral half width of 15 to 55 nm, and
• a third coloring material in which a wavelength having the lowest transmittance in a wavelength range of 400 to 800 nm is in a range of 650 to 800 nm,
• in one of absorption wavelength bands of the colorant, a transmittance is 1% or more and less than 50%,
• the optical function layer includes a layer that has an ultraviolet shielding rate according to JIS L 1925 of 85% or more and a pencil hardness at a surface load of 500 g of H or above, and
• ΔE*ab, which is a chromaticity difference between before and after a light resistance test of irradiating for 120 hours with a xenon lamp having an illuminance at wavelengths of 300 to 400 nm of 60 W/cm2 under the conditions of a temperature of 45° C. and a humidity of 50% RH, satisfies Equation (1) below:
• ΔE*ab≤5 Equation (1), wherein the second coloring material is a metal complex of a compound having a tetraazaporphyrin structure.