UNIVERSAL DISPLAY CORPORATION

Provided are organometallic compounds comprising at least one central metal atom which is selected from palladium or platinum, the central metal atom being coordinated by at least one first ligand comprising at least two 6-membered aromatic rings which are fused together. Also provided are formulations comprising these organometallic compounds. Further provided are compositions, organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

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.

A compound including a first bidentate ligand L A that includes a structure of Formula I, are provided. The ligand L A is coordinated to a metal M and can be joined with other ligands. In Formula I, in addition to some exclusions, each of X 1 , X 2 , X 3 , and X 4 is C or N; two R 1 , R 2 , and R 3 can be joined or fused to form a ring; and each R 1 , R 2 , and R 3 is independently a group containing the metal M, a hydrogen, or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Provided organic light emitting device (OLED) comprising compounds having Formula I: wherein rings A, B, C, D, E, and F are each independently a single or fused ring system, consisting of one or more 5-membered or 6-membered carbocyclic or heterocyclic rings; L 1 , L 2 , L 3 , L 4 , L 5 , and L 6 are each independently optionally present or is selected from the group consisting of O, S, Se, BR, BRR′, NR, C═R, CRR′, SiRR′, P(O)R, and GeRR′; a, b, c, d, e and f are each 0 for not present or 1 for present; each of R, R′, R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 is independently a hydrogen or a substituent; and any two of adjacent R, R′, R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 can be joined or fused to form a ring. The compound is an ETL.

Provided are organometallic compounds comprising a platinum or palladium atom as the central metal atom which is coordinated by an at least tetradentate ligand. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) as well as related consumer products that utilize these organometallic compounds.

Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.

A compound having a Formula of Ir(L A ) x (L B ) y (L C ) z , where each of x and y is independently 1 or 2, z is 0 or 1 or 2, and x+y+z=3. In Formula Ir(L A ) x (L B ) y (L C ) z , L A includes a structure of Formula I, L B includes a structure of Formula II, L C is a bidentate ligand; each of X 1 to X 25 is C or N; Y is a linking group; L o is a direct bond or a linking group; L is a direct bond or an organic linker; each of moieties A, D, and F is a monocyclic ring or a polycyclic fused ring system; and each substituent is independently H or a General Substituent defined herein. Formulations, OLEDs, and consumer products containing the compound are also provided.

Devices, pixel arrangements, and fabrication techniques thereof are provided for devices that include pixels having red, green, and blue sub-pixels, where the blue sub-pixel is shared among more than one pixel in the arrangement. The display includes fewer than three data lines per pixel and uses only three colors of sub-pixel.

A compound including a first ligand L A of Formula I, is disclosed. In Formula I, ring B is a 5- or 6-membered ring; X 1 , X 2 , and X 3 are each CR A or N; R is a 5- or 6-membered carbocyclic or heterocyclic ring, which can be further fused or substituted; and (1) when ring B is an unfused 6-membered ring, X 1 and X 2 are N, and X 3 is C; and (2) when ring B is a fused 6-membered ring, ring B has the structure of Formula II, In this structure, the wavy line indicates the point of connection to ring A; Q 1 to Q 6 are each C or N; and, when proviso (2) applies, (I) at least one of X 1 , X 2 , and X 3 is N; or (II) R is two or more fused or unfused 5- or 6-membered carbocyclic or heterocyclic rings, or (III) at least ring A or R is substituted with a partially or fully deuterated alkyl or partially or fully deuterated cycloalkyl group.

Organic electroluminescent devices are provided, including devices having an emissive layer in addition to an outcoupling layer with material having an emissive state. The material having an emissive state within the outcoupling layer converts the energy confined in the multipolar localized surface plasmon resonance modes to dipolar emissive modes, thereby increasing the light outcoupling efficiency of devices.