A laminated optical film comprising an optical film (1) obtained by
stretching a polymer film comprising a polycarbonate resin and a styrene
resin, wherein a photoelastic coefficient is 2.0.times.10.sup.-11 to
6.0.times.10.sup.-11 m.sup.2/N, and a three dimensional refractive index
is controlled, an optical film (2) showing optically positive uniaxial
property that satisfies a relationship of
nx.sub.2>ny.sub.2.apprxeq.nz.sub.2, and an optical film (3) formed of
a material showing optically negative uniaxial property, and the material
being tilting aligned, enables inhibition of coloring of display image
for observation of a display picture in a diagonal direction to normal
line of a screen, and enables display of an image having little gradation
inversion areas, and that has outstanding durability.