Patent ID: 6777724
Filing Date: 2004-08-17
Classification: B82Y,H01L

Abstract:
A light-emitting device comprising:an anode disposed on a substantially transparent substrate; a hole injection enhancement material disposed on the anode and opposite the substrate; a hole transport material disposed on the hole injection enhancement material and opposite the anode; at least one organic EL material disposed on the hole transport material and opposite the hole injection enhancement material, the organic EL material having a plurality of nanoparticles of at least one inorganic PL material dispersed therein, the organic EL material emitting a first EM radiation having a first spectrum in response to an applied electrical voltage if the electrical voltage is applied through the anode and the cathode, and the inorganic PL material absorbing a portion of the first EM radiation having the first spectrum and emitting a second EM radiation having a second spectrum; an electron injection enhancement and transport material disposed on the organic EL material and opposite the hole transport material; and a cathode.