Patent ID: 7964251

Claim:
A liquid crystal display device of an in-plane switching mode which comprises a pair of polarizing plates, which are constituted with a polarizing plate at an output side comprising a polarizer at an output side and a polarizing plate at an incident side comprising a polarizer at an incident side having a transmission axis approximately perpendicular to a transmission axis of the polarizer at an output side, and k sheets (k representing an integer of 2 or greater) of all optically anisotropic members and liquid crystal cells which are disposed between the pair of polarizing plates, wherein a relation: (Σ n xi +Σn yi )/2 ≦Σn zi is satisfied, wherein major in-plane refractive indices of an i-th optically anisotropic member are represented by n xi and n yi (n xi >n yi ), a major refractive index in a direction of thickness is represented by n zi , and Σ shows a sum for i=1˜k; a relation: 0.90 <R 40 /R 0 <1.10 is satisfied, wherein, in Optical laminate (O) formed by laminating k sheets of optically anisotropic members and liquid crystal cells, a retardation of light having a wavelength of 550 nm incident perpendicularly is represented by R 0 , and a retardation of light having a wavelength of 550 nm incident at an angle inclined by 40 degrees with respect to a normal toward a major axis is represented by R 40 ; and the polarizing plate at an output side comprises protective films disposed on both faces of the polarizer at an output side and a low refractive index layer which has a refractive index of 1.37 or smaller, comprises a cured coating film of a silicone coating material composition comprising hollow fine particles or porous fine particles and is disposed at a side of observation of a face of the protective film at a side of observation of the polarizer at an output side.