Sunday, December 05, 2010

US Patent 7842385 - Coated nanoparticle illuminator

This patent from Samsung teaches selecting the refractive index of the coating of quantum dot nanoparticles in order to enhance the luminous efficiency of qdot LEDs and displays. Claim 1 reads:

1. A matrix dispersed coated nanoparticle, comprising:

a nanoparticle, which receives and emits light;

a coating material formed on a surface of the nanoparticle, the coating material having an index of refraction which is less than an index of refraction of the nanoparticle; and

a matrix disposed on the coating material, wherein the index of refraction of the coating material is greater than an index of refraction of the matrix.