QUANTUM DOT PHOSPHOR FOR LIGHT EMITTING DIODE AND METHOD OF PREPARING THE SAME

摘要

Disclosed herein is a quantum dot phosphor for light emitting diodes, which includes quantum dots and a solid substrate on which the quantum dots are supported. Also, a method of preparing the quantum dot phosphor is provided. Since the quantum dot phosphor of the current invention is composed of the quantum dots supported on the solid substrate, the quantum dots do not aggregate when dispensing a paste obtained by mixing the quantum dots with a paste resin for use in packaging of a light emitting diode. Thereby, a light emitting diode able to maintain excellent light emitting efficiency can be manufactured.

主权项

1. A quantum dot phosphor, comprising a plurality of quantum dots and a solid substrate on which the quantum dots are supported,
wherein the quantum dot comprises a Group II-VI compound semiconductor nanocrystal, a mixture of Group II-VI compound semiconductor nanocrystals, a Group III-V compound semiconductor nanocrystal, a mixture of Group III-V compound semiconductor nanocrystals, or a mixture of the Group II-VI compound semiconductor nanocrystal and the Group III-V compound semiconductor nanocrystal, wherein the solid substrate comprises an inorganic phosphor, a metal oxide, a polymer, an undoped metal salt, or a mixture thereof, wherein the quantum dots are disposed directly on an outer surface defining the solid substrate, each of the quantum dots being separated from one another.