Abstract: A first device including a first organic light emitting device is provided. The first OLED includes an anode; a cathode; and a first emissive layer, disposed between the anode and the cathode, comprising a first emissive dopant that is a phosphorescent metal compound having an emission peak wavelength between 530 nm to 580 nm. The first device also includes a second emissive layer that includes a fluorescent compound, a phosphorescent compound, or both; and the first device is capable of emitting white light.

Abstract: Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing.

Abstract: Provided is an electroluminescent device. The organic electroluminescent device comprises an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer comprises a first compound having a structure of H-L1-E and a second compound having a general formula of M(La)m(Lb)n(Lc)q, and the device has at least one maximum emission wavelength greater than 630 nm. Such a new material composition consisting of the first compound and the second compound can be used in a light-emitting layer of the electroluminescent device. The new material composition can achieve the emission of deep red light in the device, significantly reduce a drive voltage of the device while significantly improving device efficiency and/or a device lifetime, and provide better device performance. Further provided is a display assembly.

Abstract: Provided are a flexible OLED light-emitting module and a preparation therefor. The flexible OLED light-emitting module includes: a flexible substrate having a plurality of holes A, an OLED having a plurality of holes B, an encapsulation layer having a plurality of holes C, and an external circuit, where the holes A, B and C coincide to form through-holes penetrating the light-emitting module, and the OLED device has a common organic light-emitting layer. The new flexible OLED light-emitting module has good air permeability due to through-holes and thus can be used in various phototherapy devices so that the phototherapy devices not only have a large light-emitting area, but also have good air permeability and are suitable for long-term wearing. Further provided are a method for preparing the flexible OLED light-emitting module and a phototherapy device including the flexible OLED light-emitting module.

Abstract: Provided are an organic electroluminescent material and a device including the same. The organic electroluminescent material is a polycyclic compound having a structure of Formula 1, and the compound can be used as a TADF material in an organic electroluminescent device. The polycyclic compound has a regulating effect on the luminescent color, can achieve the desired green light emission, and enables the device to exhibit a narrow full width at half maximum and higher efficiency and demonstrating very broad industrial application prospects. Further provided are an organic electroluminescent device including the compound and a compound composition including the compound.

Abstract: Provided are an organic electroluminescent material and device thereof. The organic electroluminescent material is a polycyclic compound having a structure of Formula 1, and the compound can be used as a thermally activated delayed fluorescence (TADF) material in an organic electroluminescent device. The polycyclic compound has a regulatory effect on the luminescent color, can achieve the desired green light emission, and has deeper highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels, thereby possessing the potential to become an excellent luminescent material and demonstrating very broad industrial application prospects. Further provided are an organic electroluminescent device comprising the compound and a compound composition comprising the compound.

Abstract: Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a compound having a structure of Formula 1, and the compound can be used in an organic electroluminescent device, for example, as an electron blocking material. The application of these compounds in organic electroluminescent devices can reduce the device voltage, increase the device efficiency, and especially greatly improve the device lifetime, thereby providing better device comprehensive performance. Further provided are an organic electroluminescent device comprising the compound and a compound composition comprising the compound.

Abstract: Provided is an active-matrix organic electroluminescent display which comprises a stacked organic electroluminescent device. The stacked organic electroluminescent device comprises at least two light-emitting units. At least one common p-type charge generation layer is comprised between two adjacent light-emitting units. The common p-type charge generation layer comprises a first organic material and a second organic material that satisfy a particular energy level relationship. The common p-type charge generation layer has a particular high doping proportion and a particular low lateral conductivity per unit doping. Since the common p-CGL in the active-matrix OLED display of the present disclosure comprises a first organic material and a second organic material that satisfy a particular energy level relationship and has a particular low lateral conductivity per unit doping, the device can obtain excellent device performance while the crosstalk between the pixels is inhibited.

Abstract: A composition of materials including a first compound having a structure according to Formula I

Abstract: Provided is a light-emitting material with polycyclic ligand. The light-emitting material is a metal complex with polycyclic ligand and may be used as a light-emitting material in an electroluminescent device. While maintaining a very narrow FWHM, these novel metal complexes can better adjust the light-emitting color of the device, reduce the driving voltage of the device or maintain the driving voltage at a low level, improve device efficiency, greatly increase the lifetime of the device, and provide better device performance. Further provided are an electroluminescent device and a compound composition.

Abstract: A compound having formula (LA)nIr(LB)3-n or formula (LA)mPt(LC)2-m is provided, in which the ligand LA has a structure of Formula I, wherein R has the structure of where two adjacent atoms from the four atoms marked with * are C and are fused to ring B. In Formulas I and II, ring A is a carbocyclic or heterocyclic ring; ring B is an aromatic ring; X is NR?, CR?R?, SiR?R?, O, S or Se; each of Z and X1 to X13 are carbon or nitrogen; R1, R2, R3, R4, R?, and R? are each hydrogen or a substituent; LB is an unsubstituted or substituted phenyl pyridine bidentate ligand or its derivative; and LC is a bidentate ligand.

Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device has an organic layer comprising at least a fluorescent material and a metal complex. The fluorescent material has a structure represented by Formula 1, and the metal complex comprises a ligand with a structure represented by Formula 2. The organic electroluminescent device uses a phosphorescent material to sensitize the fluorescent material so that the prepared organic electroluminescent device has a narrower full width at half maximum and higher efficiency. Further provided is a display apparatus comprising the organic electroluminescent device.

Abstract: A compound having a formula M(LA)x(LB)y(LC)z, where ligand LA is ligand LB is and ligand LC is is disclosed. In formula M(LA)x(LB)y(LC)z, M is a metal having an atomic number greater than 40; x is 1 or 2; y and z are independently 0, 1, or 2; x+y+z is the oxidation state of the metal M; A1-A8 are carbon or nitrogen; ring B is bonded to ring A through a C—C bond; M is bonded to ring A through a M-C bond; X is O, S, Se, CRR?, or NR1; rings C and D are each independently a 5 or 6-membered carbocyclic or heterocyclic ring; at least one R4 is a five-membered or six-membered heterocyclic ring which can be further substituted by RE; each R substituent is independently selected from the several substituents; and any adjacent R substitutents are optionally joined to form a ring.

Abstract: Provided is a luminescent material having a polycyclic ligand. The luminescent material is a new metal complex having a polycyclic ligand and may be used as luminescent materials in electroluminescent devices. These new metal complexes achieve red light emission, have a very narrow full width at half maximum, and can achieve high saturation luminescence. In addition, these new metal complexes, when used as luminescent materials in electroluminescent devices, can achieve red light emission, have a very narrow full width at half maximum, achieve high saturation luminescence, reduce or maintain a low voltage, greatly improve device efficiency and lifetime, and provide better device performance. Further provided are an electroluminescent device and a compound composition.

Abstract: Provided are a mixture, a composition, an electroluminescent device and an electronic device thereof. The mixture comprises three or more compounds, one of which has a structure of Formula 1. The mixture of the present disclosure has high evaporation stability and can be used as a single evaporation source in a preparation process of an OLED device, which can simplify a production process and reduce a production cost. Moreover, when the mixture is used as a host material in an organic electroluminescent device, the electroluminescent device can obtain good overall performance. Further provided are an organic electroluminescent device comprising the mixture, an electronic device and a compound composition.

Abstract: Provided is an active-matrix organic electroluminescent display comprising a plurality of pixels; wherein each pixel at least comprises one organic electroluminescent device; at least two pixels share a common first organic layer which at least comprises a first organic material and a second organic material that satisfy a specific energy level relationship; the common first organic layer has a specifically high doping proportion and a specifically low lateral conductivity per unit doping. By optimizing the energy level difference, doping proportion, and lateral conductivity per unit doping of the materials in the common first organic layer, the device is enabled to maintain comprehensive advantages of low voltage and high efficiency. Furthermore, due to the low lateral conductivity per unit doping of the common first organic layer, the lateral migration of holes within the common first organic layer remains at a low level, thereby significantly suppressing lateral crosstalk between pixels in the display.

Abstract: A mixture of carbazole and triazine derivatives that can be thermally evaporated from one crucible to fabricate thin films for electroluminescent devices is disclosed.

Abstract: A metal iridium complexes, devices containing the same, and formulations including the same described.

Abstract: The present disclosure relates to compounds for organic electronic devices such as organic light-emitting devices. In particular, the present disclosure relates to a metal complex comprising a ligand La having a structure of Formula 1A and a ligand Lb having a structure of Formula 1B. These novel metal complexes can provide better device performance, can obtain more saturated green light emission, a narrower FWHM, and higher EQE, and can prepare devices with better performance. Further disclosed are an electroluminescent device comprising the metal complex, a compound combination comprising the metal complex, and a display assembly comprising the metal complex, wherein the electroluminescent device, compound combination, or display assembly has a relatively good application prospect.

Abstract: Provided are an organic electroluminescent material and device thereof. The organic electroluminescent material is a compound having a structure of Formula 1, which may be used as a host material in the organic electroluminescent device. These novel compounds can provide better device performance such as high power efficiency and a longer lifetime. Further provided are the organic electroluminescent device comprising the compound, a compound composition comprising the compound, and an electronic apparatus comprising the compound.