LIGHT SCATTERING LAYER, LIGHT SCATTERING PLATE, COLOR FILTER AND LIQUID CRYSTAL DISPLAY DEVICE UTILIZING THEM

摘要

PROBLEM TO BE SOLVED: To provide a light scattering layer, a light scattering plate and a color filter, having high dispersibility of particulates into a matrix transparent resin, improved frontal scattering characteristics and superior light transmittivity and improved scattering characteristics, while maintaining high light trasmittivity and a liquid crystal display device utilizing them. ;SOLUTION: This light scattering layer, a light scattering plate and the color filter are characterized by scattering transmitted light, by having a resin layer composed of a transparent resin in which inorganic particulates are dispersed. The inorganic particulates are polygonal particulates, having a refractive index different from that of the resin and essentially having no fracture face consisting of the particulates with an L/S ratio ≤2.0, expressing lengths of the long and short axes of the particulates as L and S respectively. The number- average particle size of the particulates is ≥0.1 μm and ≤20.0 μm. Their particle size distribution D90/D10 is ≤7 expressing the particle sizes at cumulative frequencies of 10% and 90% in the cumulative particle size distribution counted from the minimum size side as D10 and D90 respectively. The liquid crystal display device utilizes them.;COPYRIGHT: (C)2001,JPO