Patent ID: 7700201
Filing Date: 2010-04-20
Classification: C09K,H01L,H05B,Y10S

Abstract:
1. A blue organic electroluminescent device, comprising: a substrate; a first and second electrodes formed on the substrate; an emitting layer formed between the first electrode and the second electrode, the emitting layer having a plurality of materials and being a blue emitting material using a chemical formula 1 as a dopant wherein, at least one of A1 and A2 is selected from a substituted or non-substituted aromatic group, a heterocyclic group, an aliphatic group and hydrogen, wherein materials forming the emitting layer together with the material of the chemical formula 1 is structured as a chemical formula 2 wherein, the X is selected from a group consisting of naphthalene, anthracene, phenanthrene, pyrene, perylene, and quinoline wherein the B1 and B2 are selected from phenyl, pyridyl, naphthyl, tritolylphenyl, biphenylenyl, anthryl, phenanthryl, pyrenyl, perylenyl, quinolyl, isoquinolyl, fluorenyl, terphenyl, tolyl, xylyl, methylnaphthyl, and hydrogen; wherein the blue emitting material is at least one of following chemical formulas