The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device comprising the heterocyclic compound in an organic material layer.

An organic compound is represented by general formula (1) below: ##STR00001## where X.sub.1 and X.sub.2 are each independently selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group; R.sub.11 to R.sub.16 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a heterocyclic group, and a halogen atom; R.sub.21 and R.sub.22 are each independently selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, and an aralkyl group; and A.sub.1.sup.− and A.sub.2.sup.− each independently represent a monovalent anion.

A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and comprising an emission layer, wherein the interlayer further includes an electron transport region between the emission layer and the second electrode, the electron transport region includes a first compound of Formula 1 and a second compound of Formula 2, the first compound and the second compound are different from each other, and the second compound includes at least one π electron-deficient nitrogen-containing C.sub.1-C.sub.60 cyclic group, where Formulae 1 and 2 are described herein.

Provided is a novel metal complex that can be used as an electron transporting material. A metal complex represented by the following Formula (1) to the following Formula (3). R.sup.A1 to R.sup.A9, R.sup.C1 to R.sup.C8, and R.sup.E1 to R.sup.E6 are each independently a single bond, an alkylene group, an arylene group, a heteroarylene group, or a group represented by —R.sup.P1—P(═O)R.sup.P2—R.sup.P3—, R.sup.B1 to R.sup.B9, R.sup.D1 to R.sup.D8, and R.sup.F1 to R.sup.F6 are each independently a hydrogen atom, an. alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an aryloxy group, a heteroaryloxv group, an amino group, a cyano group, a halogen atom, or a hydroxy group, one or more selected from the group consisting of R.sup.B1 to R.sup.B9 are a phenanthrolinyl group, one or more selected from the group consisting of R.sup.D1 to R.sup.D8 are a phenanthrolinyl group, and one or more selected from the group consisting of R.sup.F1 to R.sup.F6 are a phenanthrolinyl group, M is an alkali metal or an alkaline earth metal, Z is 1 or 2, and X is O or S.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):

##STR00001##

or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.1, L.sup.2, L.sup.3, L.sup.4, M, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

The present invention relates to a polycyclic aromatic derivative compound that can be employed in an organic layer in a device, and an organoelectroluminescent device with high-efficiency and a long-life, including same and having remarkably improved luminous efficiency, and the device employing same can be efficiently utilized in a variety of displays and lighting devices, such as a flat panel display device, a flexible display device, a single color or white flat lighting device, and a single color or white flexible lighting device.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):

##STR00001##

including stereoisomers, salts and tautomers thereof, wherein R.sup.1, R.sup.2, R.sup.3, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, M.sup.1, M.sup.2, A, q, w and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):

##STR00001##

or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.1, L.sup.2, L.sup.3, L.sup.4, M, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Disclosed are a heterocyclic compound and an organic light emitting device including the same.