Abstract: An OLED including an anode, a cathode, and an organic layer between the anode and the cathode, where the organic layer includes a compound having the formula [LA]3-nIr[LB]n is disclosed.

Abstract: A compound comprising a metal tetradentate coordination configuration of Formula I, with a tetradentate ligand is provided. In the compound, M is Pt or Pd; Z11, Z12, Z13, and Z14 are the four coordinating atoms of the tetradentate ligand; the compound comprises a first ring system consisting of all atoms of all metal-containing rings formed by the metal M and the tetradentate ligand; atoms M, Z11, Z12, Z13, and Z14 define a first plane that passes through the metal M and is positioned to have a minimum sum of shortest distances with Z11, Z12, Z13, and Z14; wherein a total distance between the atom of the first ring system farthest away from the first plane on each side of the first plane (h1+h2) is at least 6.1 ?. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are organic compounds comprising as a central structure two 6-membered aromatic rings which are bond together via a direct single bond. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds and/or OLEDS.

Abstract: Provided are novel silane derived compounds. Also provided are OLEDs and related consumer products that contain these novel silane derived compounds. Further provided are formulations comprising these novel silane derived compounds.

Abstract: Disclosed is a device that includes an emissive material or region including a host that is doped with a first material as an emitter that is an acceptor and a phosphorescent-capable second material as a sensitizer. The first material and the second material each has a first singlet state and a first triplet state. The first triplet state of the second material is not lower than the first triplet state of the first material. The second material transfers excitons to the first material and the excitons that transition to the first triplet state of the first material can be activated to the first singlet state of the first material through a thermal activation process.

Abstract: Provided are organometallic compounds including a ligand LA having a structure of Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are carbazole-based host compounds containing a 9-membered ring represented by Formula I where the variables are defined herein. Also provided are formulations comprising these carbazole-based hosts compounds. Further provided are OLEDs and related consumer products that utilize these carbazole-based hosts compounds.

Abstract: A compound of Formula I is disclosed. In the structure of Formula I, ring A and ring B are 5- or 6-membered rings; L1, L2, L3, and Z are each linking groups; a, b, and c are each 0 or 1, and a+b+c=2 or 3; K1, K2, K3, and K4 are each a direct bond, O, or S; Z1 to Z6 and X1 to X5 are each C or N; W is a linking group comprising 3 to 5 linking atoms, which can be further substituted; M is Pd or Pt; each RA, RB, RC, RD, RE, R, and R? is selected from H or a variety of substituents, and can be joined to another substituent for form a ring. Organic light emitting devices, consumer products, formulations, and chemical structures containing the compounds are also disclosed.

Abstract: A compound having an ancillary ligand L1 having the formula: Formula I is disclosed. The ligand L1 is coordinated to a metal M having an atomic number greater than 40, and two adjacent substituents are optionally joined to form into a ring. Such compound is suitable for use as emitters in organic light emitting devices.

Abstract: Provided are organometallic compounds comprising a ligand which is at least a two-dentate ligand which comprises at least one 5-membered nitrogen containing heterocyclic ring, the nitrogen of which is bonded to the central metal atom. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: A dual host system for OLEDs that contains hole-transporting indolocarbazole and electron-transporting indolocarbazole exhibiting superior performance in the OLEDs is disclosed.

Abstract: Provided are multicyclic organic electroluminescent compounds having a ligand LA of Formula I shown below: Also provided are OLEDs and related consumer products that contain an organic layer having these organic electroluminescent compounds.

Abstract: Provided are organometallic compounds including a ligand LA of the following Formula I Also provided are formulations including these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are organometallic compounds comprising a Pt or Pd as the central metal atom which is coordinated by a tetradentate ligand comprising one 5-membered ring and at least three further rings. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Abstract: Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode, a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; and electron transport layer, and a cathode disposed, in that order, over a substrate.

Abstract: A compound comprising a structure of Formula I, is provided. In Formula I, each of X1 to X10, X1? to X4?, and X8? to X10? is independently C or N, but is C if attached to an R; each of R1 to R6 and RA to RG is hydrogen or a General Substituent defined herein; any two substituents may be joined or fused to form a ring; and at least one of six different conditions is met regarding RA, RB, or R3 to R6. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: Provided are transition metal compounds having 1,2,3-triazine. Also provided are formulations comprising these transition metal compounds having 1,2,3-triazine. Further provided are OLEDs and related consumer products that utilize these transition metal compounds having 1,2,3-triazine.

Abstract: Provided are compounds of formula Ir(LA)2LC where: each ligand LA can be the same or different and has Formula I Also provided are formulations comprising these iridium complexes comprising pyridine-azole ligands. Further provided are OLEDs and related consumer products that utilize these iridium complexes comprising pyridine-azole ligands.

Abstract: Provided are organometallic compounds having a structure of Formula I: Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

Abstract: Provided are organic compounds comprising at least one germy or silyl group which is attached to a 6-membered aromatic carbocyclic or heterocyclic ring. Also provided are formulations comprising these organic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organic compounds.