Abstract: An organic light-emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; and a hole injecting layer disposed between the first electrode and the second electrode. The hole injecting layer includes a three-component mixture of a metal fluoride, an insulator, and a hole injecting layer forming organic compound. The metal of the metal fluoride is a Group 1 or Group 2 element. The insulator is a compound made up of an element selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba and B, and an element selected from the group consisting of O, S, Cl, Se, Br and I. The hole injecting layer material provides excellent electrical characteristics, and is suitable for fluorescent and phosphorescent devices of all colors including red, green, blue, and white, and can be used in manufacturing an organic light-emitting device having high efficiency, low voltage, high brightness, and long life span.

Abstract: An OLED device comprising a cathode, an anode, and having there between a red light emitting layer containing a non-light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus, and a red light-emitting phosphorescent dopant. OLED devices of the invention provide reduced drive voltage and improved color, and provide embodiments with other improved features such as operational stability and high luminance.

Abstract: A polymer blend comprising a first, light-emissive polymer comprising substituted or non-substituted units according to formulae (I) and (II) and a second, hole transport polymer comprising substituted or non-substituted fluorene units according to formula (I) and substituted or non-substituted triarylamine units, wherein the molecular weights of the first and second polymers and the blending ratio of the first and second polymers are selected such that, in use in a light-emissive device, the luminance of the emitted light at a bias of 5V is no less than 20,000 cd/m2. wherein R? is independently in each occurrence H, C1-C20 hydrocarbyl or C1-C20 hydrocarbyl containing one or more S, N, O, P or Si atoms, C4-C16 hydrocarbyl carbonyloxy, C4-C16 aryl(trialkylsiloxy) or both R? may form together with the 9-carbon on the fluorene ring a C5-C20 cycloaliphatic structure containing one or more heteroatoms of S, N or O.

Abstract: An organic electronic device includes: a pair of electrodes, an organic film layer containing an organic substance having a benzothiadiazole skeleton, a metal oxide layer provided on the organic film layer by vacuum vapor deposition, and an interface formed between the pair of electrodes out of the organic film layer and the metal oxide layer.

Abstract: There are disclosed rare-earth metal containing electron-injecting electrodes which are particularly effective for use with organic LED devices used in electroluminescent structures and which may in particular be formed as transparent electrodes for use in transparent or surface emitting OLEDs.

Abstract: A white Organic Light Emitting Device (OLED) includes: an anode and cathode spaced apart from each other; first, second, and third light emitting layers sequentially stacked between the anode and the cathode; and an electron injection induction layer, arranged between the second light emitting layer and the third light emitting layer, to induce the electron to flow into the second light emitting layer from the third light emitting layer. A difference between a Lowest Occupied Molecular Orbital (LUMO) energy level of the electron injection induction layer and the LUMO energy level of a dopant existing in the second light emitting layer is 0.4 eV or below.

Abstract: The invention provides a light emitting device having a low driving voltage and excellent durability by a material for a light emitting device expressed by the general formula (1): wherein each of R1, R2, R3, R4, R5 and R6 may be the same or different and is selected from hydrogen, an alkyl group, and an aryl group, A represents an n-valent aromatic hydrocarbon group, B represents an alkyl group or an aryl group, X represents carbon or nitrogen, n represents a natural number from 2 to 6, and n substituents having a phenanthroline skeleton or a benzoquinoline skeleton may be the same or different.

Abstract: Provided is a white organic light emitting device including an anode, a cathode and an organic layer disposed therebetween, the organic layer having a structure wherein an arrangement of a green emissive layer and a blue emissive layer is formed on both surfaces of a red emissive layer such that the resultant structure is symmetrical around the red emissive layer, and a spacer layer is disposed between opposing surfaces of the blue emissive layer and the green emissive layer, where the white organic light emitting device including this structure exhibits a constant luminescence spectra irrespective of any change in current density. A method of forming the white organic light emitting device is also disclosed.

Abstract: A fluorene compound and an organic light-emitting element including the fluorene compound are provided. The fluorene compound is represented by the following general formula [1], and the fluorene compound is a material for an organic light-emitting element. A steric hindrance group is introduced directly on a fluorene ring in the fluorene compound.

Abstract: Disclosed herein are several organic compounds having electron-transporting and/or hole-blocking performance and their preparation method and use and the OLEDs comprising the organic compound. The organic compounds exhibit high ionization potential (IP), electron affinity (Ea), glass transition temperature (Tg) and high electron mobility, and are a kind of good electron-transporting material with good hole-blocking ability. The devices comprising these compounds as one of the emitting layer, electron-transporting layer (ETL) and hole-blocking layer (HBL) show improved efficiency and better color purity.

Abstract: An organic light emitting diode device includes an organic layer formed of a hole transport material or a hole injection material having a photocurable group. Therefore, the organic light emitting diode device can be formed using a wet process that is simple and can be used for a large substrate. Furthermore, the organic layer and an organic light emitting layer are less affected by a solvent. Thus, the lifespan of the organic light emitting diode device is increased and there is more freedom in selecting materials for the organic layer and the organic light emitting layer. A method of manufacturing the organic light emitting diode device is also disclosed.

Abstract: There is provided a green-light-emitting device which has a high emission efficiency and a long continuous operational life, and which includes a pair of electrodes including an anode and a cathode; and a layer including an organic compound disposed between the pair of electrodes, wherein the layer includes a first compound represented by the general formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, and R16 each represent, independently of one another, a hydrogen atom, an alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, or a halogen atom; and a second compound with a pyrene skeleton or a fluorene skeleton having an energy gap larger than an energy gap of the first compound.

Abstract: The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond.

Abstract: Some embodiments provide a compound represented by Formula 1: wherein R1, R2, R3, R6, R7, and R8 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; provided that: at least one of R1, R2, and R3 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl and at least one of R6, R7, and R8 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; and R4 and R5 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl.

Abstract: Organic compounds of formula I may be used in optoelectronic devices wherein R1 is, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R2 is, independently at each occurrence, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; a is, independently at each occurrence, an integer ranging from 0-4; b is, independently at each occurrence, an integer ranging from 0-3; Ar1 is a direct bond or heteroaryl, aryl, or alkyl or cycloalkyl; Ar2 is heteroaryl, aryl, or alkyl or cycloalkyl; c is 0, 1 or 2; and n is an integer ranging from 2-4.

Abstract: Some embodiments provide a compound represented by Formula 1: wherein R1, R2, R3, R6, R7, and R8 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; provided that: at least one of R1, R2, and R3 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl and at least one of R6, R7, and R8 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; and R4 and R5 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl.

Abstract: Some embodiments provide a compound represented by Formula 1: wherein R1, R2, R3, R6, R7, and R8 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; provided that: at least one of R1, R2, and R3 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl and at least one of R6, R7, and R8 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; and R4 and R5 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl.

Abstract: Provided is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, fully secured of driving stability, and simply constructed. The EL device has a light-emitting layer disposed between an anode and a cathode stacked one upon another on a substrate and the light-emitting layer comprises a phosphorescent dopant and an indolocarbazole derivative as a host material. Examples of the indolocarbazole compounds include a compound represented by the following formula (2) or (3), wherein X is N or CH, at least one of Xs is N, and Ar1 to Ar3 each is a substituted or unsubstituted aromatic group.

Abstract: Some embodiments provide a compound represented by Formula 1: wherein R1, R2, R3, R6, R7, and R8 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; provided that: at least one of R1, R2, and R3 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl and at least one of R6, R7, and R8 is selected from optionally substituted carbazolyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl; and R4 and R5 are independently selected from the group consisting of H, optionally substituted C1-12 alkyl, optionally substituted phenyl, optionally substituted diphenylamine and optionally substituted diphenylaminophenyl.

Abstract: An OLED device includes an anode, a cathode, and at least one individually selected organic light-emitting layer disposed between the anode and cathode. The device also includes an electron-transporting layer disposed between the at least one light-emitting layer and the cathode, such electron-transporting layer including a first electron-transporting material, and an electron-injecting layer disposed between the electron-transporting layer and the cathode, such electron-injecting layer including a metal dopant having a work function less than 4.0 eV and an electron-transporting material that is different from the first electron-transporting material.