Provided are a family of chromophores including naphthyl or naphthyl-like carbocyclic or heterocyclic rings as luminescent dyes that can be useful as emitters in OLEDs. These compounds have Formula I,

##STR00001##

Also provided are formulations including these inventive compounds. Further provided are OLEDs and related consumer products that utilize these inventive compounds.

Provided are a family of chromophores including naphthyl or naphthyl-like carbocyclic or heterocyclic rings as luminescent dyes that can be useful as emitters in OLEDs. These compounds have Formula I,

##STR00001##

Also provided are formulations including these inventive compounds. Further provided are OLEDs and related consumer products that utilize these inventive compounds.

The device provided herein is an organic electroluminescent device and includes a substrate; a first electrode on the substrate and with high reflectivity; a translucent or transparent second electrode over the first electrode; and a first, a second and a third organic layer included between the first and the second electrode; where the second organic layer has a thickness >80 nm and is made of a second organic material; the third organic layer is a light-emitting layer including at least one light-emitting material and at least one host material; the first organic layer has a conductivity >1×10.sup.−4 S/m and <1×10.sup.−2 S/m; an energy level difference between HOMO energy level of the second organic material and HOMO energy level of the at least one host material is <0.27 eV; and the first electrode and the second organic layer are in direct contact with the first organic layer.

The device provided herein is an organic electroluminescent device and includes a substrate; a first electrode on the substrate and with high reflectivity; a translucent or transparent second electrode over the first electrode; and a first, a second and a third organic layer included between the first and the second electrode; where the second organic layer has a thickness >80 nm and is made of a second organic material; the third organic layer is a light-emitting layer including at least one light-emitting material and at least one host material; the first organic layer has a conductivity >1×10.sup.−4 S/m and <1×10.sup.−2 S/m; an energy level difference between HOMO energy level of the second organic material and HOMO energy level of the at least one host material is <0.27 eV; and the first electrode and the second organic layer are in direct contact with the first organic layer.

Provided is a compound of Formula I

##STR00001##

in which at least one moiety A, moiety B, moiety C, or moiety D is a 6-membered carbocyclic or heterocyclic ring, and at least one R.sup.A, R.sup.B, R.sup.C, or R.sup.D includes a group having Formula II

##STR00002##

where R.sup.X can be silyl, germyl, boryl, nitrile, F, CF.sub.3, cycloalkyl, heterocycloalkyl, or monocyclic heteroaryl. The compounds are useful as emitters in OLEDs providing improved efficiency.

Provided is a compound of Formula I

##STR00001##

in which at least one moiety A, moiety B, moiety C, or moiety D is a 6-membered carbocyclic or heterocyclic ring, and at least one R.sup.A, R.sup.B, R.sup.C, or R.sup.D includes a group having Formula II

##STR00002##

where R.sup.X can be silyl, germyl, boryl, nitrile, F, CF.sub.3, cycloalkyl, heterocycloalkyl, or monocyclic heteroaryl. The compounds are useful as emitters in OLEDs providing improved efficiency.

The present specification relates to a polymer comprising a unit represented by Chemical Formula 1, a monomer represented by Chemical Formula 2, a coating composition comprising the same, an organic light emitting device formed using the same, and a method for manufacturing an organic light emitting device using the same:

##STR00001##

wherein the variables are described herein.

The present specification relates to a polymer comprising a unit represented by Chemical Formula 1, a monomer represented by Chemical Formula 2, a coating composition comprising the same, an organic light emitting device formed using the same, and a method for manufacturing an organic light emitting device using the same:

##STR00001##

wherein the variables are described herein.

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 including the heterocyclic compound in an organic material layer.

An organic electroluminescence device includes two or more emitting units disposed between an anode and a cathode, and an intermediate layer, in which the intermediate layer contains a phenanthroline compound, the laminated emitting unit includes a first emitting layer containing a first host material and a second emitting layer containing a second host material, and a triplet energy T.sub.1(H1) of the first host material and a triplet energy T.sub.1(H2) of the second host material satisfy a relationship of a numerical formula (Numerical Formula 3),

T.sub.1(H1)>T.sub.1(H2)  (Numerical Formula 3).