Laminated optical film, elliptically polarizing plate, and image viewing display

A laminated optical film comprising:

• a first optical film (1) obtained by stretching a polymer film comprising a polycarbonate resin and a styrene resin,
• wherein the absolute value of photoelastic coefficient is 2.0×10−11 to 6.0×10−11 m2/N, and the three dimensional refractive index is controlled so that an Nz coefficient expressed by Nz=(nx1−nz1)/(nx1−ny1) satisfies Nz≦0.9, and the front retardation (Re)=(nx1−ny1)×d1 satisfies Re≧80 nm, where the direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx1, ny1, and nz1, respectively, and the thickness of the film as d1 (nm);
• a second optical film (2) showing optically positive uniaxial property that satisfies nx2>ny2=nz2, where the direction along with the refractive index in the film plane is maximum is defined as the X-axis, a direction perpendicular to the X-axis as the Y-axis, the thickness direction of the film as the Z-axis, and where refractive indices in each axial direction are defined as nx2, ny2, and nz2, respectively;
• and
• a third optical film (3) formed of a material showing optically negative uniaxial property, and the material comprising a part being angularly aligned and the thickness of the film is 30 to 90 μm.