Liquid crystal display device

Abstract

The present invention provides a liquid crystal display device capable of displaying an image with a wide viewing angle and a high color reproducibility. The liquid crystal display device includes a liquid crystal cell, polarizers provided so as to oppose each other via the liquid crystal cell therebetween, a phase compensation element provided between the liquid crystal cell and at least one of the polarizers, and an antiglare layer provided on the viewer side of the polarizer which is provided closer to the viewer.

1 - 19 . (canceled)  
   
   
       20 . A liquid crystal display device Which utilizes at least light from backlight to display images, comprising: 
 a liquid crystal cell, the liquid crystal cell including a pair of substrates and a liquid crystal layer provided between the pair of substrates, liquid crystal cell receiving light from the backlight;    a pair of polarizers provided so as to oppose each other via the liquid crystal cell therebetween;    a phase compensation element provided between the liquid crystal cell and at least one of the pair of polarizers; and    an antiglare layer provided on a viewer side of one of the pair of polarizers which is provided closer to a viewer,    wherein the antiglare layer has an internal scattering layer and a scattering surface, and    wherein a haze value of the antiglare layer is equal to or greater than 15 and a value of transmitted image clarity of the antiglare layer is equal to or greater than 15 as measured with an image clarity meter in which a width of an optical comb is 0.5 mm.    
   
   
       21 . The liquid crystal display device of  claim 20 , wherein the phase compensation element having a negative uniaxial optical anisotropy.  
   
   
       22 . The liquid crystal display device of  claim 21 , wherein the phase compensation element has an index ellipsoid which has three principal axes, a-axis, b-axis and c-axis, which are orthogonal to one another and three principal refractive indices, na, nb and nc, and wherein na>nb, nc>nb, a-axis is substantially parallel to a layer plane of the liquid crystal layer, and b-axis is inclined with respect to a layer normal of the liquid crystal layer.  
   
   
       23 . The liquid crystal display device of  claim 20 , wherein the internal scattering layer includes a polymer matrix and particles dispersed in the polymer matrix, and a refractive index of the particles and a refractive index of the polymer matrix are different from each other.  
   
   
       24 . The liquid crystal display device of  claim 20 , wherein a refractive index anisotropy Δn(550) of a liquid crystal material of the liquid crystal layer for light having a wavelength of 550 nm is in a range of 0.060<Δn(550)<0.120.  
   
   
       25 . The liquid crystal display device of  claim 22 , wherein the phase compensation element is arranged so that b-axis forms an angle in a range of 15° to 75° with respect to a layer normal of the liquid crystal layer.  
   
   
       26 . The liquid crystal display device of  claim 22 , wherein (na−nb)xd is in a range of 80 nm to 250 nm, where d denotes a thickness of the phase compensation element in a layer normal direction of the liquid crystal layer.  
   
   
       27 . The liquid crystal display device of  claim 20 , wherein the phase compensation element comprises a discotic liquid crystal material in an inclined or hybrid orientation held in a matrix obtained by cross-linking a transparent organic polymer.  
   
   
       28 . The liquid crystal display device of  claim 20 , wherein the liquid crystal layer is a twist orientation liquid crystal layer.