Patent ID: 7796212
Filing Date: 2010-09-14
Classification: G02B,G02F

Abstract:
1. A liquid crystal display comprising: a light source unit; a polarized light guide plate comprising an incident surface onto which unpolarized light from the light source unit is incident, wherein the polarized light guide plate polarizes, collimates, and out-couples the incident light; a liquid crystal panel which modulates the light illuminated from the polarized light guide plate to form images; and a diffusion layer which diffuses the light modulated in the liquid crystal panel, wherein: the polarized light guide plate further comprises: a refractive index of the optically anisotropic material is greater than a refractive index of the second layer with respect to a first polarized light, and almost the same as the refractive index of the second layer with respect to a second polarized light, the first polarized light is perpendicular to the second polarized light, and the polarized light guide plate out-couples the first polarized light; wherein the liquid crystal panel comprises a first substrate upon which a first polarization plate is attached, a second substrate upon which a second polarization plate is attached, and a liquid crystal layer encapsulated between the two substrates; and wherein the diffusion layer and one of the first polarization plate and the second polarization plate are formed as a single body at an outer side of the liquid crystal panel.