Patent ID: 7531247
Filing Date: 2009-05-12
Classification: H01L,Y10S,Y10T

Abstract:
1. An organic electroluminescent (EL) device, comprising: a substrate; an anode formed on the substrate; an interface deterioration preventing layer formed on the anode, and formed of a mixture of an organic material and an inorganic material; a hole injection layer on the interface deterioration preventing layer; a hole transport layer on the hole injection layer; a light emitting layer on the hole transport layer; an electron transport layer on the light emitting layer; an electron injection layer on the electron transport layer; and a cathode on the electron injection layer, wherein the organic material includes an aromatic amine compound having hole transmission properties, and the inorganic material is one selected from a halide or an oxide of 1A, 2A, 3A and 4A-groups of the periodic table.