Correlation of Light Scattering of Homogenous Alignment Liquid Crystal Layers with Material Properties of Liquid Crystals

Abstract

We investigated light scattering properties of conventional liquid crystal layers by 651.8 nm laser illumination. The intensity of light scattering strongly depended on the incidence angle of illumination. Although the total light intensity changed with the ordinary refractive index n o , the extraordinary refractive index n e , their difference Án, the elastic constant K, and the thickness of the liquid crystal layers d, it was simply proportional to a specific variable S consisting of those values, as S ¼ Án 2 ðn e þ n o Þ 2 d=K.

Light Leakage Behaviors of Homogenously Aligned Liquid Crystal Layers Placed between Crossed Polarizers

“…We developed a specific variable (S) as a scattering index, which consists of the refractive indexes, the anisotropy of the refractive index, the elastic constant, and the thickness of the liquid crystal layer, for clearly explaining the light scattering intensity of liquid crystal layers. 13) We found that the intensity of light scattering from the liquid crystal layer is proportional to scattering index.…”

“…We expected that the slope of the line is determined by the liquid crystal material properties as well as the light scattering phenomena of liquid crystals. 13,14)…”

Advanced liquid crystal displays with supreme image qualities

“…Currently, a commercial VA LCD TV only shows CR~5000:1. The main root cause for such a low contrast is the so-called depolarization effect inside an LCD panel [36][37][38][39][40], including diffraction effect, scattering effect, misalignment effect, etc.…”

Liquid crystal based electrolyte with light trapping scheme for enhancing photovoltaic performance of quasi-solid-state dye-sensitized solar cells

“…(11). As reported, many studies focused on the light scattering property of the nematic LC [43][44][45] especially in the field of polymer dispersed liquid crystals (PDLCs) [16,[46][47][48] containing the anisotropic LC molecules in the isotropic polymer matrix. Generally, when the LC was introduced into the polymer matrix, it forms micrometer-sized LC droplets filled with LC molecules and distributes randomly [49].…”