Patent ID: 8460950
Filing Date: 2013-06-11
Classification: H01L

Abstract:
1. An organic light-emitting diode, comprising: an anode and a cathode separately arranged from each other; and an emission layer between the anode and the cathode, the emission layer comprising, when a host material has a hole transport property, a doped region on a cathode side and an undoped region on an anode side, the doped region comprising the single host material, a light-emitting material and an electron transport material, and the undoped region comprising the single host material and the light-emitting material and no electron transport material, or the emission layer comprising, when a host material has an electron transport property, a doped region on an anode side and an undoped region on a cathode side, the doped region comprising the single host material, a light-emitting material and a hole transport material, and the undoped region comprising the single host material and the light-emitting material and no hole transport material.