Samsung Display Co., Ltd.

Wha-Il Choi

Yoon-Hyun Kwak

Sun-Young Lee

Bum-Woo Park

So-Yeon Kim

Ji-Youn Lee

Jong-Won Choi

Jin-Young Yun

Bo-Ra Lee

A heterocyclic compound represented by Formula 1 below, and an organic light-emitting device including the heterocyclic compound: 

Heterocyclic compound and organic light-emitting device including the same

An organic light-emitting diode includes a substrate; a first electrode on the substrate; a second electrode disposed opposite to the first electrode; an emission layer disposed between the first electrode and the second electrode; a hole migration region disposed between the first electrode and the emission layer; and an electron migration region disposed between the emission layer and the second electrode, wherein the hole migration region comprises a first compound represented by Formula 1 below, and at least one of the hole migration region and the emission layer comprises a second compound represented by Formula 2 below. Substituents in Formulae 1 and 2 are the same as described in the specification. 

Organic light-emitting diode

An organic light-emitting device includes an emission layer including a dopant comprising a first compound represented by Formula 1 and a host comprising a second compound represented by Formula 100 wherein in Formulae 1 and 100, X, X, R, R, R, Rto R, L, a, n and m are the same as defined in the present application.

Organic light-emitting device

An organometallic compound may be represented by one selected from the group of Formulae 5 to 8: 

Organometallic compound and organic light-emitting device including the same

Heterocyclic compounds, synthetic methods for preparing the same, and organic light-emitting display devices comprising the same are described. The subject heterocyclic compounds may comprise an aromatic ring or a heteroaromatic ring fused with a carbazole, dibenzothiophene, or dibenzofurane derivative, the compounds featuring rigid backbone structures with high glass transition temperatures and high melting points. The subject heterocyclic compounds may exhibit high electrical stability, improved charge transport ability, high heat resistance and improved light-emitting properties when used in organic light-emitting devices. Organic light-emitting display devices prepared according to the present invention exhibit lower driving voltages, increased luminescent efficiencies and longer lifetimes.

Heterocyclic compounds and organic light-emitting devices including the same

An organometallic compound and an organic light-emitting diode (OLED) including the organometallic compound are provided. In exemplary embodiments, the organometallic compound is a platinum complex comprising one or two heterocyclic ligands, the heterocyclic ligands being the same or different if they are two in number, each heterocyclic ligand comprising two nitrogen heterocyclic rings connected by a single bond, one of the rings being six membered and comprising at least one nitrogen and the other ring being a 1,2-diazole or a 1,2,4-triazole ring. One or two other organic ligands may be attached to the central platinum atom in the complex. OLEDs including one of the subject platinum compounds in a light emission layer exhibit lower driving voltages, higher luminances, higher efficiencies and longer lifetimes than do comparative OLEDs built with established dopants incorporated into the light emitting layers.

Organometallic compound and organic light-emitting diode comprising the same

A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.

Heterocyclic compound and organic light-emitting device comprising the same

An organic light-emitting diode includes a substrate, a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, and the emission layer includes a first compound represented by Formula 1 and a second compound represented by Formula 100. 

Organometallic compounds and organic light-emitting devices including the same are provided. Each subject organometallic compound may be a transition metal complex comprising up to seven organic ligands including one to three ligands which are derivatives of one of 2-(pyrazole-3-yl)pyrimidine and 2-(1,2,4-triazol-3-yl)pyrimidine. Organic light-emitting devices including the subject organometallic compounds show lower driving voltages, higher luminences, higher efficiencies and better lifetime characteristics versus organic light-emitting devices including comparative organometallic complexes.

Organometallic compounds and organic light emitting devices including the same

An organic light-emitting diode includes an emission layer, a hole migration transfer region and an electron migration region between the first and the second electrodes. The organic light-emitting diode (OLED) has low driving voltages, higher luminance, higher efficiency, higher color purity and longer lifetime than a conventional OLED.

An amine-based compound and an organic light-emitting device including the amine-based compound are provided.

Amine-based compound and organic light emitting device including the same

An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode facing the first electrode, an emission layer between the first electrode and the second electrode, a hole transfer region between the first electrode and the emission layer, and an electron transfer region between the emission layer and the second electrode. The hole transfer region includes a first compound represented by Formula 1, and the emission layer includes a second compound represented by Formula 100. 

A heterocyclic compound is represented by Formula 1. An organic light emitting device includes a first electrode, a second electrode and an organic layer between the first and second electrodes. The organic layer includes the heterocyclic compound. An organic light-emitting display apparatus includes the organic light-emitting device and a transistor including a source, a drain, a gate and an active layer. The source or the drain is electrically connected to the first electrode of the organic light-emitting device.

An organometallic compound may be represented by Formula 1: 

Growing community of inventors

Yongin, South Korea

Wha-Il Choi