The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.

Organic light-emitting device

The present invention relates to novel organic electroluminescent compounds exhibiting high luminous efficiency, and organic electroluminescent devices comprising the same. The organic electroluminescent compounds according to the invention are represented by Chemical Formula (1):

Novel organic electroluminescent compounds and organic electroluminescent device using the same

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which contain these compounds.

Materials for organic electroluminescent devices

Novel tricarbazole compounds are provided. By appropriately selecting the nature of the tricarbazole substituents, compounds with appropriate HOMO and LUMO energies can be obtained for use as materials in a secondary hole transport layer.

Organic Electroluminescent Materials and Devices

The present invention relates to an electronic device comprising anode, cathode and at least one organic layer which comprises a compound of the formula (I) to (IV). The invention furthermore encompasses the use of compounds of the formula (I) to (IV) in an electronic device and to a compound of the formula (Ic) to (IVc).

Materials for electronic devices

PROBLEM TO BE SOLVED: To provide an electroluminescent device having excellent light emission efficiency and epochally improved life, and to provide a new electroluminescent compound for achieving the device. SOLUTION: The new organic electroluminescent compound, and the electroluminescent device using the compound in an electroluminescent layer are provided. The organic electroluminescent compound is characterized by being a compound represented by chemical formula (1) (wherein, R 1 to R 16 represent each H, a halogen, an aryl ring, a cycloalkyl ring or the like). Since the organic electroluminescent compound has good light emission efficiency, and excellent color purity and lifetime characteristics of a material, an OLED (organic light-emitting diode) having extremely good drive lifetime can be produced from the compound. COPYRIGHT: (C)2010,JPO&INPIT

New organic electroluminescent compound, and organic electroluminescent device using the same

Provided is an organic electroluminescent device that exhibits an efficient host-dopant energy transfer mechanism, and thus, expresses a certain high-efficiency electroluminescent performance, based on improved electron density distribution. The organic electroluminescent device also overcomes low initial efficiency and short operation life property, and secures high-performance electroluminescent performance with high efficiency and long life property for each color.

Organic electroluminescent device employing organic light emitting compound as light emitting material

The present invention relates to organic electroluminescent compounds represented by Chemical Formula 1 and an electroluminescent device comprising the compound in an electroluminescent layer. The electroluminescent compound according to the invention has good luminous efficiency and excellent lifetime of the material, so that an OLED device having very good operation lifetime can be prepared.

Electroluminescent compounds comprising fluorene group and organic electroluminescent device using the same

Provided is an electroluminescent device including an organic layer interposed between an anode and a cathode on a substrate, wherein the organic layer includes an electroluminescent layer containing one or more dopant compound(s) of formula (I) and one or more host compound(s) of formula (II), wherein at least one of Ar 1 to Ar 4 in the arylamines of formula (I) is 1- or 2-naphthyl and the compounds of formula (II) are aromatic-substituted anthracene compounds. The disclosed electroluminescent device exhibits superior luminous efficiency, excellent color purity and very good operation life.

Chi Sik Kim

Papers

Novel organic electroluminescent compounds and organic electroluminescent device using the same

New organic electroluminescent compound, and organic electroluminescent device using the same

Organic electroluminescent device employing organic light emitting compound as light emitting material

Electroluminescent compounds comprising fluorene group and organic electroluminescent device using the same

Organic electroluminscent device using electroluminescent compounds