Abstract:
PURPOSE: A novel heterocyclic derivative containing nitrogen is provided to ensure high electronic stability, high luminescent degree, and long lifetime. CONSTITUTION: A heterocyclic derivative containing nitrogen is denoted by chemical formula 1. In chemical formula 1, R is halogen atom, or substituted or non-substituted aliphatic hydrocarbon group. An organic electroluminescence device containing electron transport layer(ETL) with the heterocyclic derivative. The organic electroluminescence device comprises anode(hole injection electrode), hole injection layer, hole transport layer, light emitting layer, electron transport layer, electron injection layer, and anode(electron injection electrode).
Abstract:
PURPOSE: An organic electro luminescence device using pyrrole derivative is provided to remarkably improve driving voltage, luminescence efficiency and lifetime of the device. CONSTITUTION: A pyrrole derivative is denoted by chemical formula 1. An organic electro luminescence derive comprises anode, cathode, and plural organic compound layers between the anode and cathode. The organic compound layer contains the pyrrole derivative compound. The organic compound layer comprises hole-transport layer containing the compound of chemical formula 1.
Abstract:
PURPOSE: An organic electroluminescent device is provided to ensure low driving voltage, high luminous efficiency, high color purity and excellent lifetime property by comprising a fluorene-based light emitting material. CONSTITUTION: An organic electroluminescent device comprises a light emitting layer arranged between a positive electrode and a negative electrode. The light emitting layer contains a compound represented by formula I. In chemical formula I, R1-R9 are selected from Independently hydrogen, C1-30 alkyl or cycloalkyl which contains or does not contain at least one hetero atom, C1-10 aryl group which contains or does not contain at least one hetero atom and is substituted with alkyl, alkenyl, cycloalkyl, arylalkyl, or aryloxy group, and C5-30 aryl group which contains or does not contain at least one hetero atom; and R10 is Independently hydrogen, 1-30 alkyl or cycloalkyl which contains or does not contain at least one hetero atom, and C5-30 aryl group which contains or does not contain at least one hetero atom and is substituted or unsubstituted with C1-30 alkyl.
Abstract:
The present invention provides a compound containing at least two five-membered heterocycles, an organic electronic element using the same, and a terminal thereof. The organic electronic element includes more than one layer of organic layers containing the compound. The compound is formed into the organic layer using a soluble process. [Reference numerals] (101) Substrate; (102) Positive electrode; (103) Hole injection layer; (104) Hole transporting layer; (105) Light emitting layer; (106) Electron transfer layer; (107) Electron injection layer; (108) Negative electrode