Sumitomo Chemical Company, Limited

Kiyotoshi Iimura

Tomoyuki Suzuki

Susumu Miyazaki

Koichi Fujisawa

Katsumi Agata

Disclosed is a composition containing one or more aromatic ether compounds, one or more compounds having a boiling point of not less than 200&#xb0; C., and one or more polymers which are charge-transporting or luminescent in a solid state. This composition is characterized in that the compounds having a boiling point of not less than 200&#xb0; C. are selected from the group consisting of aliphatic compounds which may have a heteroatom, alicyclic compounds which may have a heteroatom, aromatic compounds having two or less substituents and a heterocyclic compounds having two or less substituents.

Polymer composition and polymer light-emitting device using same

To provide a solution composition having a significantly high viscosity comprising one or more solvent(s) and one or more polymer(s) having a polystyrene-reduced Z-average molecular weight of 1.0&#xd7;10to 5.0&#xd7;10, and the solution composition allows to easily obtain a film having a favorable film formability and high uniformity.

Solution composition and polymer light-emitting device

Provided is a light scattering resin layer providing scattering of a transmitted light by dispersion of an inorganic fine particle in a transparent resin, wherein said fine particle is a polyhedral particle having substantially no fractured surface, L/S ratio is 2.0 or less when the major axis length is represented by L and the minor axis length is represented by S, the number-average particle diameter of said fine particle is 0.1 &mgr;m or more and 20.0 &mgr;m or less, and the particle size distribution in terms of D90/D10 value is 7 or less when particle diameters at 10% cumulation and 90% cumulation from smaller particle side of cumulative particle size distribution are represented by D10 and D90, respectively. The light scattering layer has a good dispersibility of a fine particle in a transparent resin, improved forward scattering property, and excellent light transmittance and used for a color filter, a light scattering plate, a light scattering adhesive layer, and a liquid crystal display.

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Tsukuba, Japan

Kiyotoshi Iimura