| 摘要 |
A laminated optical film including an optical film ( 1 ) whose three dimensional refractive index is controlled so that an Nz coefficient represented with Nz=(nx<SUB>1</SUB>-nz<SUB>1</SUB>)/(nx<SUB>1</SUB>-ny<SUB>1</SUB>) satisfies a relationship of Nz<=0.9, when a direction where a refractive index in a film plane gives maximum is defined as X-axis, a direction perpendicular to X-axis as Y-axis, a thickness direction of the film as Z-axis, and refractive indexes in each axial direction are defined as nx<SUB>1</SUB>, ny<SUB>1</SUB>, and nz<SUB>1</SUB>, respectively, and an optical film ( 2 ) that is formed with a material showing optically negative uniaxial property, and being tilting aligned. The laminated optical film may suppress coloring of the display, and may display a picture with few tone reversal regions.
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