Provided are a compound for an organic optoelectronic device represented by Chemical Formula 1, a composition for an organic optoelectronic device, an organic optoelectronic device including the same, and a display device. Details for Chemical Formula 1 are as defined in the specification.

An organic light emitting diode and an organic light emitting device thereof are provided, each including a first compound represented by following structure, a second compound as a p-type host and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan. The organic light emitting device includes the organic light emitting diode and can be a display device or a lighting device.

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An organic light emitting diode and an organic light emitting device thereof are provided, each including a first compound represented by following structure, a second compound as a p-type host and a third compound as an n-type host in an emitting material layer. As a result, the organic light emitting diode and the organic light emitting device have advantages in the driving voltage, the luminous efficiency and the lifespan. The organic light emitting device includes the organic light emitting diode and can be a display device or a lighting device.

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A compound for an organic optoelectronic device, an organic optoelectronic device, and a display device, the compound being represented by Chemical Formula 1:

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An electronic apparatus includes a light-emitting device that includes an organometallic compound represented by Formula 1:

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Provided is a compound comprising a ligand L.sub.A, wherein: the ligand L.sub.A comprises a first atom coordinating to a metal; the first atom can only form a ring, if any, with the metal as the ring atom; the metal is selected from the group consisting of Ir, Rh, Re, Ru, Os, Pt, Pd, Ag, Au, and Cu; the ligand L.sub.A comprises at least one Si or Ge atom.

A compound of Formula I,

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is provided. In Formula I, M is Pt or Pd; rings B, C, and D are each independently 5-membered or 6-membered rings; X.sup.1 to X.sup.5 are C or N, with at lest two being C; K.sup.1 is O or S; Z.sup.3 is C or N; each represents a single bond or a double bond; L.sup.1 is a linker, each R, R′, R″, R.sup.1, R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently hydrogen or a substituent selected from the group general substituent; and any two substituents may be joined or fused together to form a ring. Formulations, OLEDs, and consumer products including the compound of Formula I are also provided.

Provided are compounds comprising ligands L.sub.A that are ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising ligands L.sub.A that are ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising ligands L.sub.A that are ligands of Pt and Ir complexes for OLED applications.

The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

A compound of Formula Ir(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z is provided. Ligand L.sub.A has a structure of Formula I,

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ligand L.sub.B has a structure of Formula II,

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ligand L.sub.C is a bidentate ligand; at least one of R.sup.A and R.sup.B comprises Formula III,

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and L.sub.A, L.sub.B, and L.sub.C are different. In Formulae I and II, each of moiety A, B, C, and D is a ring or a fused-ring system; each of Z.sup.1 to Z.sup.8 and X.sup.1 to X.sup.5 is C or N; K is a direct bond, O, or S; L is a direct bond or a linker; and Q is Si or Ge. Formulations, OLEDs, and consumer products containing the compound are also provided.