| abstract |
PROBLEM TO BE SOLVED: To suppress a decrease in contrast at a wide viewing angle when applied to a lateral electric field type active matrix liquid crystal display device, which is an elliptically polarizing plate in which a retardation film and a polarizer are laminated. Providing products with high shift improvement effects. SOLUTION: It consists of a thermoplastic polymer containing a cyclic polyolefin resin, and when the refractive index in each axial direction is nx, ny, nz, the uniaxially oriented positive refractive index anisotropy (nx> ny≈nz). ) Having a positive refractive index anisotropy (nz 1 > nx) when the refractive index in each axial direction is nx 1 , ny 1 , nz 1. The optical film formed by laminating the retardation film B having 1≈ny 1 ) is laminated on one side of the polarizer so that the slow axis of the retardation film A and the absorption axis of the polarizer are orthogonal to each other. An elliptically polarizing plate, characterized in that [Selection] Figure 1 |