Size Effect of Light Scattering on the Nano-Sized Color Filter Pigment in Liquid Crystal Display

Title
Size Effect of Light Scattering on the Nano-Sized Color Filter Pigment in Liquid Crystal Display
Author(s)
곽진석전철규[전철규]
Keywords
CROSSED POLARIZERS; LEAKAGE
Issue Date
201404
Publisher
OPTICAL SOC KOREA
Citation
JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v.18, no.2, pp.184 - 187
Abstract
This study examined the effects of particle size on the light scattering of a nano-sized color filter pigment used to obtain a range of colors in liquid crystal displays. The contrast ratio is one of the most important characteristics of liquid crystal displays. When a color filter is located between two crossed polarizers, the size of the pigment can give rise to a decrease in the contrast ratio due to Rayleigh scattering by the nanoparticles in the filter. The size effect of the color filter pigment on the contrast ratio was investigated in terms of the depolarization parameter. As an experimental result, the depolarization parameter increased with decreasing pigment size. Therefore, a smaller pigment size can reduce light leakage caused by light scattering in the color filter between two crossed polarizers. The depolarization function was also proposed as a useful function for predicting the decrease in the contrast ratio of the color filter.
URI
http://hdl.handle.net/YU.REPOSITORY/32611http://dx.doi.org/10.3807/JOSK.2014.18.2.184
ISSN
1226-4776
Appears in Collections:
이과대학 > 물리학과 > Articles
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