Liquid crystal display

Abstract

A liquid crystal display is provided including an anisotropic scatterer provided on a front substrate side of a front substrate, wherein the anisotropic scatterer includes low refractive index regions and high refractive index regions, wherein high-low-index boundaries are disposed between the low refractive index regions and high refractive index regions, and wherein the anisotropic scatterer is disposed such that ambient light is scattered when light is incident from a direction substantially following the direction that the high-low-index boundaries extend, and such that the light is transmitted when light is incident from a direction substantially perpendicular to the direction that the high-low-index boundaries extends.

The invention is claimed as follows: 
     
         1 . A liquid crystal display which is a reflective liquid crystal display, comprising:
 a front substrate;   a rear substrate; and   a liquid crystal material layer disposed between the front substrate and the rear substrate,   wherein an anisotropic scatterer, which is disposed such that a direction where scattering characteristics are the maximum is aligned with a normal observing direction, is provided on a front substrate side of the front substrate,   wherein the anisotropic scatterer includes low refractive index regions and high refractive index regions,   wherein high-low-index boundaries are disposed between the low refractive index regions and high refractive index regions, and   wherein the anisotropic scatterer is disposed such that ambient light is scattered when light is incident from a direction substantially following the direction that the high-low-index boundaries extend, and such that the light is transmitted when light is incident from a direction substantially perpendicular to the direction that the high-low-index boundaries extends.   
     
     
         2 . The liquid crystal display according to  claim 1 , wherein the anisotropic scatterer is disposed such that ambient light, which is reflected on a front surface side of the rear substrate and is incident on the anisotropic scatterer, is scattered when emitted toward the front substrate side. 
     
     
         3 . The liquid crystal display according to  claim 1 , wherein the anisotropic scatterer is formed by laminating a plurality of scattering members. 
     
     
         4 . The liquid crystal display according to  claim 1 , wherein the liquid crystal display performs grayscale display using an area ratio grayscale method. 
     
     
         5 . The liquid crystal display according to  claim 1 , wherein the anisotropic scatterer is disposed such that ambient light from outside is incident on the anisotropic scatter and scattered before being reflected by a front surface side of the rear substrate. 
     
     
         6 . The liquid crystal display according to  claim 1 , wherein the low refractive index regions and the high refractive index regions are tilted such that the high-low-index boundaries and thickness direction of the anisotropic scatter form an angle. 
     
     
         7 . The liquid crystal display according to  claim 6 , wherein the anisotropic scatterer has a configuration in which the low refractive index regions and the high refractive index regions are formed in a louver shape. 
     
     
         8 . The liquid crystal display according to  claim 6 , wherein the anisotropic scatterer has a configuration in which each of the high refractive index regions form a columnar region and the low refractive index regions surround the high refractive index regions. 
     
     
         9 . An anisotropic scatterer provided in a reflective liquid crystal display,
 the anisotropic scatterer being disposed in the reflective liquid crystal display such that a direction where scattering characteristics are the maximum is aligned with a normal observing direction,   the anisotropic scatterer comprising:
 low refractive index regions; and 
 high refractive index regions, 
   wherein high-low-index boundaries are disposed between the low refractive index regions and high refractive index regions, and   wherein the anisotropic scatterer is disposed such that ambient light is scattered when light is incident from a direction substantially following the direction that the high-low-index boundaries extend, and such that the light is transmitted when light is incident from a direction substantially perpendicular to the direction that the high-low-index boundaries extends.