Samsung Electro-mechanics Co., Ltd.

Samsung Electronics Co., Ltd.

Don Ik Lee

Jae Young Choi

Eun Sung Lee

Seon Mi Yoon

Jae Ho Lee

Seong Jae Choi

Disclosed herein are a dispersant for dispersing nanoparticles that are surface-bound with capping ligands in a polymer matrix having an epoxide group, a method for dispersing the nanoparticles using the dispersant, and a nanoparticle-containing thin film including the dispersant.

Dispersant for dispersing nanoparticles in an epoxy resin, method for dispersing nanoparticles using the same, and nanoparticle-containing thin film comprising the same

A sulfide phosphor paste composition comprising a sulfur-containing dispersant, and a fluorescent film prepared therefrom, are provided. The sulfur-containing dispersant has a dual head structure containing both a carboxyl group and a thiol group or a structure containing a thiol or thiophene group as a head group. An oligomeric sulfur-containing dispersant is also provided. Adsorption of the dispersant on the surface of the sulfide phosphor prevents aggregation of the phosphor particles, and thereby improves the dispersibility of the sulfide phosphor paste composition, the homogeneity of the phosphor in the paste composition, and the density of a film produced from the paste composition. Fluorescent films and display devices produced from the phosphor paste composition exhibit improved luminescent properties and excellent processability.

Sulfur-containing dispersant and sulfide phosphor paste composition comprising the same

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Icheon-si, South Korea

Don Ik Lee