Abstract: A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a phosphorescent emitter, a fluorescent emitter, and a host, and the phosphorescent emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.

Abstract: Organic luminescent materials containing tetraphenylene ligands are disclosed, which can be used as emitters in the emissive layer of an organic electroluminescent device. The organic luminescent materials is metal complexes which comprise a new series of tetraphenylene ligands. The use of these novel ligands can decrease aggregation in the solid state and improve the lifetime of device. Also disclosed are an electroluminescent device and a formulation.

Abstract: The present disclosure relates to a light emitting diode that includes a charge control layer disposed between a charge transfer layer and one electrode and including polysiloxane-based material chemically bonded to a surface of the charge transfer layer and a light emitting device having the same. The charge control layer is configured to remove a surface defect of the charge transfer layer, to transport charges stably, and to reflect a part of light passing through the charge transfer layer, and thereby enhancing out-coupling efficiency. In addition, the charge control layer regulates a charge flow from the electrode to the charge transfer layer, so that charges may be injected into an emitting material layer in a balanced manner.

Abstract: The present disclosure relates to a method for preparing an organic film structure. The method for preparing the organic film structure may include forming a pigment mixture layer outside a region where an organic film is to be formed using a pigment liquid mixture, forming a liquid organic layer in the region where the organic film is to be formed with a first liquid organic material, and curing the pigment mixture layer and the liquid organic layer to form an indicator film and the organic film, respectively. The pigment mixture layer may include a pigment.

Abstract: The present invention includes novel compounds containing heterocycles or azaheterocycles and fused phenylene or aza and cyano substituted variants thereof. These compounds may be useful as host materials for phosphorescent electroluminescent devices.

Abstract: An organic light-emitting device including: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; and an electron transport region between the second electrode and the emission layer, wherein the emission layer includes a first host and a second host, the first host includes a first compound represented by Formula 1, the second host includes at least one selected from a second compound represented by Formula 2 and a third compound represented by Formula 3, and the hole transport region includes an amine-based compound represented by Formula 40:

Abstract: A top emitting OLED device for improving viewing angle characteristics, comprising a substrate, a first electrode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, a second electrode and a light output coupling layer sequentially stacked on the substrate, wherein the second electrode has a light transmittance no less than 25%, and the hole injection layer has a refractive index no less than 1.8.

Abstract: In an embodiment, a composition is provided that includes an indenofluorene moiety; an alkyl radical, an aryl radical, or a heteroaryl radical chemically bound to the indenofluorene moiety; and an electron donor moiety bound to the indenofluorene moiety. In another embodiment, a device is provided that includes compositions described herein. In another embodiment, a method of forming a donor-acceptor small molecule or a donor-acceptor copolymer is provided that includes forming an indenofluorene moiety; forming an electron donor moiety; and reacting the indenofluorene moiety with the electron donor moiety in a cross-coupling reaction.

Abstract: The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 10,000 particles per liter formulation having an average size in the range from 0.1 to 20 ?m, to their use for the preparation of electronic devices, to methods for preparing electronic devices using the formulations of the present invention, and to electronic devices prepared from such methods and formulations.

Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, and absorbing blue or green light and emitting light having a wavelength different from the absorbing light, wherein the resin matrix includes a thermoplastic resin, and the color conversion film has a light emission peak with a FWHM of 60 nm or less, quantum efficiency of 80% or greater and an absorption coefficient of 30,000 M?1cm?1 or greater at a maximum absorption wavelength when irradiating light having a light emission peak at 450 nm, a FWHM of 40 nm or less and monomodal light emission intensity distribution, a method for preparing the same, and a backlight unit including the color conversion film.

Abstract: The present application relates to fluoranthenylamine compounds of a formula (I). These compounds are suitable for use in electronic devices, The present application further relates to processes for preparing the compounds mentioned, and to electronic devices comprising the compounds mentioned.

Abstract: The present invention provides an organic light-emitting element, comprising a substrate, a first electrode, more than one organic layer film comprising a light-emitting layer, and a second electrode. The light-emitting element further comprises a cover layer. The cover layer is located on the second electrode, and comprises a high refractive layer and a low refractive layer. A material for the low refractive layer of the cover layer is a boron complex organic small molecular compound. The organic light-emitting element provided by the present invention can achieve high light-emitting efficiency and color reproducibility. The organic light-emitting element of the present invention can be used for an organic EL display, a backlight source of a liquid crystal display, illumination, a sign board, an identification lamp, etc.

Abstract: A phosphorescent compound of formula (I): wherein: M is a transition metal; C1 is a carbon atom forming a metal-carbene bond with M; A is a saturated bridged bicyclic or saturated bridged tricyclic group consisting of one nitrogen atom and 6-12 carbon atoms; either: (i) X1 is a bridgehead carbon atom of the bridged bicyclic or bridged tricyclic group and X2 is NR1 wherein R1 is a substituent, or (ii) X1 is N and X2 is a bridgehead group of formula CR6 wherein R6 is H or a substituent; Ar1 is a C6-20 aromatic group or a 5-20 membered heteroaromatic group; L in each occurrence is independently a mono- or poly-dentate ligand other than a ligand of formula A-Ar1; x is at least 1; and y is 0 or a positive integer. The compound of formula (I) may be used as a blue light-emitting material in a white organic light-emitting device.

Abstract: A light emitting device (10) includes a hole injection layer (121), a hole transport layer (122), and a light emitting layer (123). The hole transport layer (122) includes a first organic layer (122a), a second organic layer (122b), and a third organic layer (122c). The first organic layer (122a) is formed on the hole injection layer (121) and includes a first hole transporting material. The second organic layer (122b) is formed on the first organic layer (122a) and includes a second hole transporting material. The third organic layer (122c) is formed on the second organic layer (122b) and includes the second hole transporting material. The second organic layer (122b) is formed by using a coating method, and the third organic layer (122c) is formed by a vapor deposition method.

Abstract: The present invention relates to spirobifluorene compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

Abstract: Provided are a mixture of compounds used as a phosphorescent host material in an organic electronic element, an organic electronic element comprising the compounds to achieve high light-emitting efficiency, low driving voltage, and significantly improved lifespan, and an electronic device comprising the element.

Abstract: A biscarbazole derivative having a specific group, which is represented by formula (1); and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y1 to Y16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L1 and L2 independently represents a single bond, etc.; provided that at least one of A1, A2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.

Abstract: An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, stability, and life span can be improved.

Abstract: A compound is represented by a formula (2) below.

Abstract: Disclosed is an organic light emitting diode including a cathode, an anode, a light emitting layer provided between the cathode and the anode, a first electron transporting layer including a heterocyclic compound represented by Formula 1 and provided between the cathode and the light emitting layer, and a second electron transporting layer including a host material including one or two or more of compounds represented by Formulae 3 to 5 and one or two or more n-type dopants selected from alkali metals and alkaline earth metals and provided between the cathode and the first electron transporting layer:

Abstract: The present invention describes a process for producing tris-orthometalated metal compounds which can be used as coloring components as functional materials in a number of diverse applications that can be broadly attributed to the electronics industry.

Abstract: An organic light-emitting device comprising: a first electrode; a second electrode facing the first electrode; a first emission unit, a second emission unit and a third emission unit between the first electrode and the second electrode; a first charge generation layer between the first emission unit and the second emission unit; and a second charge generation layer between the second emission unit and the third emission unit, wherein the first emission unit comprises a first emission layer, the second emission unit comprises a second emission layer, the third emission unit comprises a third emission layer, and at least one of the first emission unit, the second emission unit and the third emission unit comprises an inorganic buffer layer.

Abstract: The present invention relates to compounds of the formula (1), (17) 18) or (20) and to the use thereof in electronic devices, and to electronic devices which contain these compounds. The invention furthermore relates to the preparation of the compounds of the formula (1), (17) 18) or (20) and to formulations contains one or more compounds of the formula (1), (17) 18) or (20).

Abstract: There is provided a flexible substrate having excellent flexibility and gas barrier properties. A flexible substrate 100 according to the present invention includes: a base material 20 including an inorganic glass 10 and resin layers 11 and 11? placed on both sides of the inorganic glass 10; and an inorganic thin film 12 placed on a side of one of the resin layers where the inorganic glass is not placed, wherein the inorganic thin film 12 is formed on at least a peripheral edge of one surface of the base material.

Abstract: A polycyclic aromatic compound in which a plurality of aromatic rings are connected by a boron atom and an oxygen atom, a sulfur atom or a selenium atom and substituted by a specific aryl such as anthracene, is useful as a material for an organic device. By the polycyclic aromatic compound, an organic EL device having at least one of efficiency and device life can be provided.

Abstract: A new series of iptycene derivatives as ligands for metal complexes that are useful as phosphorescent emitters for incorporation into OLEDs are disclosed. Provided are compositions that include a compound including a chemical group of Formula I wherein (1) the chemical group of Formula I is included as at least one of the substituents in a bidentate ligand forming the metal complex, or (2) when the substituents in a bidentate ligand forming the metal complex are attached to a six-membered ring, at least one of the such substituents join adjacent substituents and fuse into the six-membered ring attached thereto to form a chemical group having Formula I.

Abstract: The present disclosure relates to an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device includes a hole injection layer including a first doped layer and/or a second doped layer. The first doped layer includes a P-type dopant, and the second doped layer includes a P-type dopant and a hole transport material. The organic electroluminescent device includes a hole transport layer formed on the hole injection layer, and an electron blocking layer formed on the hole transport layer. A difference in HOMO energy level between the electron blocking layer and the hole transport layer is less than or equal to 0.2 eV. The power consumption of the organic electroluminescent device can be reduced. The lifetime of the mass production device therefore can be increased.

Abstract: The present disclosure provides a polymer, a quantum dots film layer and a preparation method thereof. The polymer includes a plurality of polymerized units, and each of the polymerized units includes a hydrophobic structure and a carrier transport structure. The hydrophobic structure is linked to the carrier transport structure via a bridge bond containing a functional atom, and the hydrophobic structure is provided with a first ligand. When the polymerized unit is broken at the bridge bond, a hydrophobic monomer containing the first ligand and a carrier transport monomer containing a second ligand are generated. The second ligand includes the functional atom, and the second ligand is stronger than the first ligand in coordination activity.

Abstract: A compound of Formula I wherein M is a metal selected from Ir or Os; rings A, B, C, D, E, and F are independently a 5-membered or 6-membered aromatic ring; Z1 to Z14 are independently selected from C or N; X is selected from a direct bond, or a linker with one to ten backbone member atoms; and Y is selected from a direct bond, a linker with one to ten backbone member atoms, or is absent to provide an open hexadentate ligand. An organic electroluminescent device (OLED) that includes an anode, a cathode, and an organic layer comprising a compound of the Formula I, and a consumer product comprising the OLED.

Abstract: A compound having a formula M(LA)(LB)(LC) is disclosed. Each of ligands LA and LB are mono-anionic bidentate ligands coordinated to metal M forming a 5-member cyclometalated ring. Ligands LA and LB are covalently linked by a first linking group, where there is at least one loop of M-LA-first linking group-LB-M having only carbocyclic or heterocyclic groups in the loop other than M. Wherein the first linking group includes multiple aliphatic or aromatic rings that are separated by at least one single bond, where each ring in the first linking group is part of the backbone of the loop. Devices, such as organic light emitting diodes, including the compounds are also disclosed.

Abstract: A compound having a formula M(LA)(LB)(LC) is described. In formula M(LA)(LB)(LC), ligands LA and LB are each a mono-anionic bidentate ligand coordinated to metal M forming a 5-member cyclometalated ring and ligands LA and LB are covalently linked by a linking group. There is at least one loop of M-LA-linking group-LB-M having only arylene or heteroarylene groups in the loop other than M. In the compound, each ring in the linking group is part of a backbone of the loop; and either (i) the loop comprises a specific DBX moiety and the linking group comprises two or more arylene or heteroarylene groups, or (ii) the linking group comprises three or more arylene or heteroarylene groups. Formulations, OLEDs, and consumer product containing the compound are also disclosed.

Abstract: An OLED is disclosed whose emissive layer has a first host and an emitter, where the emitter is a phosphorescent metal complex or a delayed fluorescent emitter, where EH1T, the T1 triplet energy of the first host, is higher than EET, the T1 triplet energy of the emitter, where EET is at least 2.50 eV, where the LUMO energy of the first host is higher than the HOMO energy of the emitter, where the absolute value of the difference between the HOMO energy of the emitter and the LUMO energy of the first host is ?E1, where a??E1?EET?b; and where a?0.05 eV, and b?0.60 eV.

Abstract: Novel phosphorescent OLED emitters based on metal complexes with indolizine-derived heterocycles as ligands are disclosed. Structural variations of the ligands provide access to a variety of green, yellow and red emitters.

Abstract: Disclosed are the compound for an organic optoelectronic device, the compound being represented by Chemical Formula 1, a composition for an organic optoelectronic device including the compound for an organic optoelectronic device, an organic optoelectronic device, and a display device. In Chemical Formula 1, each substituent is the same as defined in the specification.

Abstract: A condensed cyclic compound and an organic light-emitting device including the same.

Abstract: An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: The present specification relates to a double spiro structure compound, and an organic light emitting device comprising the same.

Abstract: The present disclosure discloses an organic light emitting diode display panel, a method of manufacturing an organic light emitting diode display panel, and a display device. By forming a film layer having super-hydrophobic properties of the outer water oxygen barrier layer of the thin film encapsulation layer, that is, constructing a rough surface, the surface of the hydrophobic film layer has an extremely thin air layer to reduce direct contact of moisture with the thin film encapsulation layer, thereby reducing the penetration of water and oxygen effectively, improving the water-blocking ability of the film encapsulation layer, and extending the lifetime of the display panel.

Abstract: An organometallic compound represented by Formula 1:2 wherein, in Formula 1, groups and variables are the same as described in the specification.

Abstract: The disclosure relates to a method for making carrier for use in single molecule detection. The method includes: providing a rigid substrate; coating a polymer layer on a surface of the rigid substrate, the polymer layer is in semisolid state; transferring a nano-scaled pattern of a template on a surface of the polymer layer by pressing the template on the surface of the polymer layer; obtaining a flexible substrate by removing the template; and applying a metal layer on the flexible substrate. The carrier for use in single molecule detection has a relative higher SERS and can enhance the Raman scattering.

Abstract: Ligands for metal complexes that are useful as phosphorescent emitters in OLEDs are disclosed. The ligands contain an aryl group covalently bonded to the coordinating metal. The aryl group has a cycloalkyl or a substituted cycloalkyl that is linked para to the linkage of the coordinating metal on that aryl group.

Abstract: An organic electroluminescence device includes an anode, a second organic layer, a first organic layer, and a cathode in this order. The first organic layer contains a first compound and a second compound. The second organic layer contains a third compound. The first compound is a compound represented by a formula (1). The second compound is a delayed fluorescent compound. The third compound is a compound represented by a formula (3). In the formula (1), X is a nitrogen atom or a carbon atom bonded to Y, Y being a hydrogen atom or a substituent. In the formula (3), n is an integer ranging from 1 to 4, XB is a group represented by a formula (3A). In the formula (3A), Ar1 and Ar2 are each independently a monovalent or polyvalent aromatic hydrocarbon group, and Cz is a group represented by a formula (3B-1) or the like.

Abstract: Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R2 and R3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

Abstract: An organic compound that emits red light having a long wavelength and that is represented by formula [1] below. In the formula [1], R1 to R24 are each independently selected from a hydrogen atom or a substituent.

Abstract: Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission.

Abstract: An organic compound represented by formula (1) and an organic compound represented by formula (2). These organic compounds provide high color purity. In formulae (1) and (2), R1 to R24 are each independently selected from the group consisting of a hydrogen atom and a substituent.

Abstract: Heteroleptic iridium complexes having the formula are disclosed. In this formula, R1, R2, R3, R4, R5, and R6, are selected from hydrogen, deuterium, cycloalkyl, deuterated cycloalkyl, alkyl, and deuterated alkyl, and can optionally be linked together to form a ring; at least one of R1, R2, R3, R4, R5, and R6 is cycloalkyl, deuterated cycloalkyl, alkyl, or deuterated alkyl; ring A is attached to the 4- or 5-position of ring B; and R and R? can represent any of a variety of subsitutents. These iridium compounds contain alkyl substituted phenylpyridine ligands, which provide these compounds with beneficial properties when the iridium complexes are incorporated into OLED devices.

Abstract: The present invention relates to the compounds of the formulae (1) and (2) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.

Abstract: Novel phosphorescent metal complexes containing ligands having the Formula I: bearing either a naphthalene or other fused heterocycle moieties such as benzofuran and benzothiophene useful as emitters in OLEDs and improve the device efficiency and the FWHM of the emission are disclosed.

Abstract: The present disclosure provides an organic electroluminescent device, a display substrate including the organic electroluminescent device, and a display apparatus including the display substrate. The organic electroluminescent device includes an anode, a cathode, and a light emitting layer between the anode and the cathode, wherein a hole transport layer is provided between the anode and the light emitting layer and includes a hole transport material and a P-type doping material, electrons of the highest occupied molecular orbit of the P-type doping material are excitable to the lowest unoccupied molecular orbit of the P-type doping material under the excitation of light to cause an electron transfer reaction from the highest occupied molecular orbit of the hole transport material to the highest occupied molecular orbit of the P-type doping material.